Tag Archives: bearing for hyundai

China supplier Wheel Hub Bearing 512417 for Hyundai 527303m100, Ha590326 with Hot selling

Product Description

Contact:; Joanna Xuan  
Mob:; +86~8 13858117 
1.;Reference OEM NO.;:;512417,;527303M100,;HA590326,;BR930726,;527303M000

2.;Product Specification:;
Item Condition:; New
Item Description:; Wheel Bearing and Hub Assembly
Position:; Rear Axle

Fits following vehicles

HYUNDAI EQUUS 2011-2013 All Models
HYUNDAI GENESIS 2009-2013 All Models
HYUNDAI GENESIS COUPE 2571-2013 All Models

3.;About us :;
We are specialize in manufacturing wide range of automotive wheel bearing,; wheel hub bearing,; wheel hub for European and American,; Japanese,; Korean automobiles:;
a.; The DAC Series wheel bearing;
b.; The Second generation wheel Hub Units;
c.; The Third generation wheel Hub bearing;
We have passed the evaluation of ISO9001:;2000 ,; TS16949 Quality management system certification and we believe that quality and service is key to success .;our company will always offer high quality products and satisfying after-sale service to all our customers .;

Some New models of our wheel hub bearing,;Hub assembly as following:;

512571 512040 512122 512158 512173 512184 512204 512213 512226 512232
512239 512249 512251 512255 512261 512262 512263 512264 512306 512307
512315 512354 512355 512356 512361 512362 512364 512365 512376 512379
512382 512385 512387 512389 512390 512391 512392 512393 512394 512395
512396 512397 512399 512402 512404 512406 512410 512411 512412 512413
512414 512415 512417 512421 512422 512423 512425 512428 512429 512430
512431 512432 512433 512434 512436 512438 512441 512442 512447 512448
512449 512450 512451 512452 512453 512454 512455 512456 512465 512466
512468 512473 512478 512479 512480 512482 512486 512489 512490 512502
512504 512508 512509 512513 512516 512518 512519 512522 512530 512531
512533 512538 512525 512526 512527 513079 513082 513093 513099 513114
513115 513153 513155 513165 513168 513195 513216 513251 513259 513269
513278 513279 513284 513285 513289 513291 513293 513300 513302 513303
513304 513305 513309 513311 513312 513313 513314 513315 513316 513324
513326 513340 513347 513350 513356 515085 515112 515116 515125 515127
515130 515131 515132 515133 515134 515142 515143 515162 518501 518502
518503 518504 518505 518506 518507 518508 518509 518510 518511 518512
518514 518515 518516 518519 541001 541002 541003 541004 541005 541007
541008 541009 541571 541011 541012 541016 HA590002 HA590041 HA590043 HA590047
HA590063 HA590096 HA595717 HA590124 HA590125 HA590139 HA590140 HA590199 HA595715 HA595714
HA595718 HA595717 HA595716 HA595718 HA590267 HA595710 HA59571 HA590322 HA590324 HA590330
HA59571 HA590360 HA590361 HA590362 HA590367 HA59571 HA59 0571 HA59571 HA59571 HA590383
HA59 0571 HA590397 HA59 0571 HA590407 HA590408 HA590409 HA59571 HA59571 HA59571 HA590423
HA590426 HA59 0571 HA590428 HA59571 HA59571 HA59571 HA59571 HA59571 HA59571 HA590440
HA590442 HA590443 HA590443 HA590444 HA590446 HA590449 HA590450 HA59571 HA59571 HA590460
HA59 0571 HA59571 HA59571 HA59571 HA59571 HA59571 HA59 0571 HA59 0571 HA590487 HA590491
HA59571 HA59571 HA59571 HA590522 HA59 0571   HA590528 HA59571 HA59571 HA59571 HA590541
HA59571 HA59571 HA590565 HA590568 SP500704 SP555717 SP555719 SP555710 SP555711 SP555712
SP55571 SP620301 SP620303 BR93571 BR930862 BR93571 BR930899 BR930900    

The Benefits of Spline Couplings for Disc Brake Mounting Interfaces

Spline couplings are commonly used for securing disc brake mounting interfaces. Spline couplings are often used in high-performance vehicles, aeronautics, and many other applications. However, the mechanical benefits of splines are not immediately obvious. Listed below are the benefits of spline couplings. We’ll discuss what these advantages mean for you. Read on to discover how these couplings work.

Disc brake mounting interfaces are splined

There are 2 common disc brake mounting interfaces – splined and six-bolt. Splined rotors fit on splined hubs; six-bolt rotors will need an adapter to fit on six-bolt hubs. The six-bolt method is easier to maintain and may be preferred by many cyclists. If you’re thinking of installing a disc brake system, it is important to know how to choose the right splined and center lock interfaces.

Aerospace applications

The splines used for spline coupling in aircraft are highly complex. While some previous researches have addressed the design of splines, few publications have tackled the problem of misaligned spline coupling. Nevertheless, the accurate results we obtained were obtained using dedicated simulation tools, which are not commercially available. Nevertheless, such tools can provide a useful reference for our approach. It would be beneficial if designers could use simple tools for evaluating contact pressure peaks. Our analytical approach makes it possible to find answers to such questions.
The design of a spline coupling for aerospace applications must be accurate to minimize weight and prevent failure mechanisms. In addition to weight reduction, it is necessary to minimize fretting fatigue. The pressure distribution on the spline coupling teeth is a significant factor in determining its fretting fatigue. Therefore, we use analytical and experimental methods to examine the contact pressure distribution in the axial direction of spline couplings.
The teeth of a spline coupling can be categorized by the type of engagement they provide. This study investigates the position of resultant contact forces in the teeth of a spline coupling when applied to pitch diameter. Using FEM models, numerical results are generated for nominal and parallel offset misalignments. The axial tooth profile determines the behavior of the coupling component and its ability to resist wear. Angular misalignment is also a concern, causing misalignment.
In order to assess wear damage of a spline coupling, we must take into consideration the impact of fretting on the components. This wear is caused by relative motion between the teeth that engage them. The misalignment may be caused by vibrations, cyclical tooth deflection, or angular misalignment. The result of this analysis may help designers improve their spline coupling designs and develop improved performance.
CZPT polyimide, an abrasion-resistant polymer, is a popular choice for high-temperature spline couplings. This material reduces friction and wear, provides a low friction surface, and has a low wear rate. Furthermore, it offers up to 50 times the life of metal on metal spline connections. For these reasons, it is important to choose the right material for your spline coupling.

High-performance vehicles

A spline coupler is a device used to connect splined shafts. A typical spline coupler resembles a short pipe with splines on either end. There are 2 basic types of spline coupling: single and dual spline. One type attaches to a drive shaft, while the other attaches to the gearbox. While spline couplings are typically used in racing, they’re also used for performance problems.
The key challenge in spline couplings is to determine the optimal dimension of spline joints. This is difficult because no commercial codes allow the simulation of misaligned joints, which can destroy components. This article presents analytical approaches to estimating contact pressures in spline connections. The results are comparable with numerical approaches but require special codes to accurately model the coupling operation. This research highlights several important issues and aims to make the application of spline couplings in high-performance vehicles easier.
The stiffness of spline assemblies can be calculated using tooth-like structures. Such splines can be incorporated into the spline joint to produce global stiffness for torsional vibration analysis. Bearing reactions are calculated for a certain level of misalignment. This information can be used to design bearing dimensions and correct misalignment. There are 3 types of spline couplings.
Major diameter fit splines are made with tightly controlled outside diameters. This close fit provides concentricity transfer from the male to the female spline. The teeth of the male spline usually have chamfered tips and clearance with fillet radii. These splines are often manufactured from billet steel or aluminum. These materials are renowned for their strength and uniform grain created by the forging process. ANSI and DIN design manuals define classes of fit.

Disc brake mounting interfaces

A spline coupling for disc brake mounting interfaces is a type of hub-to-brake-disc mount. It is a highly durable coupling mechanism that reduces heat transfer from the disc to the axle hub. The mounting arrangement also isolates the axle hub from direct contact with the disc. It is also designed to minimize the amount of vehicle downtime and maintenance required to maintain proper alignment.
Disc brakes typically have substantial metal-to-metal contact with axle hub splines. The discs are held in place on the hub by intermediate inserts. This metal-to-metal contact also aids in the transfer of brake heat from the brake disc to the axle hub. Spline coupling for disc brake mounting interfaces comprises a mounting ring that is either a threaded or non-threaded spline.
During drag brake experiments, perforated friction blocks filled with various additive materials are introduced. The materials included include Cu-based powder metallurgy material, a composite material, and a Mn-Cu damping alloy. The filling material affects the braking interface’s wear behavior and friction-induced vibration characteristics. Different filling materials produce different types of wear debris and have different wear evolutions. They also differ in their surface morphology.
Disc brake couplings are usually made of 2 different types. The plain and HD versions are interchangeable. The plain version is the simplest to install, while the HD version has multiple components. The two-piece couplings are often installed at the same time, but with different mounting interfaces. You should make sure to purchase the appropriate coupling for your vehicle. These interfaces are a vital component of your vehicle and must be installed correctly for proper operation.
Disc brakes use disc-to-hub elements that help locate the forces and displace them to the rim. These elements are typically made of stainless steel, which increases the cost of manufacturing the disc brake mounting interface. Despite their benefits, however, the high braking force loads they endure are hard on the materials. Moreover, excessive heat transferred to the intermediate elements can adversely affect the fatigue life and long-term strength of the brake system.

China supplier Wheel Hub Bearing 512417 for Hyundai 527303m100, Ha590326   with Hot sellingChina supplier Wheel Hub Bearing 512417 for Hyundai 527303m100, Ha590326   with Hot selling

China Good quality Wheel Hub Bearing 51750-3D000 for Hyundai with high quality

Product Description

Wheel Hub Bearing for Hyundai Accent,; Pony,; Sonata,; KIA Magentis 51750-3D MGP571 4355713030 7M0501655 CR1922 326169 4355712030 4355712030T 51750-25 43502-57130 96268475 H5 518503 43502-32070 7700628767 7M0501665 713650520 4355712070 51824630 43502-20131 770571811 522041 CR1948 701501647 CR1788 4355712080 4342163B00  1H0 407 613A 8D0 407 615 B 7704057162 7157153742 13571080 7L0498611 95711816 90157724 4355713571 4342164B00 51750-29100 13004 72080 825718335 522037 CR1949 7H0401611E 9 0571 645 90129572 713610860 45712-0M000 45712-0M000 7H0401611D CR1957 7S4Z1104A        

For more information please send your specific inquiry or OEM part No.; To us,; and we will reply you without delay!

How to Choose the Right Worm Shaft

You might be curious to know how to choose the right Worm Shaft. In this article, you will learn about worm modules with the same pitch diameter, Double-thread worm gears, and Self-locking worm drive. Once you have chosen the proper Worm Shaft, you will find it easier to use the equipment in your home. There are many advantages to selecting the right Worm Shaft. Read on to learn more.
worm shaft

Concave shape

The concave shape of a worm’s shaft is an important characteristic for the design of a worm gearing. Worm gearings can be found in a wide range of shapes, and the basic profile parameters are available in professional and firm literature. These parameters are used in geometry calculations, and a selection of the right worm gearing for a particular application can be based on these requirements.
The thread profile of a worm is defined by the tangent to the axis of its main cylinder. The teeth are shaped in a straight line with a slightly concave shape along the sides. It resembles a helical gear, and the profile of the worm itself is straight. This type of gearing is often used when the number of teeth is greater than a certain limit.
The geometry of a worm gear depends on the type and manufacturer. In the earliest days, worms were made similar to simple screw threads, and could be chased on a lathe. During this time, the worm was often made with straight-sided tools to produce threads in the acme plane. Later, grinding techniques improved the thread finish and reduced distortions resulting from hardening.
When a worm gearing has multiple teeth, the pitch angle is a key parameter. A greater pitch angle increases efficiency. If you want to increase the pitch angle without increasing the number of teeth, you can replace a worm pair with a different number of thread starts. The helix angle must increase while the center distance remains constant. A higher pitch angle, however, is almost never used for power transmissions.
The minimum number of gear teeth depends on the angle of pressure at zero gearing correction. The diameter of the worm is d1, and is based on a known module value, mx or mn. Generally, larger values of m are assigned to larger modules. And a smaller number of teeth is called a low pitch angle. In case of a low pitch angle, spiral gearing is used. The pitch angle of the worm gear is smaller than 10 degrees.
worm shaft

Multiple-thread worms

Multi-thread worms can be divided into sets of one, two, or 4 threads. The ratio is determined by the number of threads on each set and the number of teeth on the apparatus. The most common worm thread counts are 1,2,4, and 6. To find out how many threads you have, count the start and end of each thread and divide by two. Using this method, you will get the correct thread count every time.
The tangent plane of a worm’s pitch profile changes as the worm moves lengthwise along the thread. The lead angle is greatest at the throat, and decreases on both sides. The curvature radius r” varies proportionally with the worm’s radius, or pitch angle at the considered point. Hence, the worm leads angle, r, is increased with decreased inclination and decreases with increasing inclination.
Multi-thread worms are characterized by a constant leverage between the gear surface and the worm threads. The ratio of worm-tooth surfaces to the worm’s length varies, which enables the wormgear to be adjusted in the same direction. To optimize the gear contact between the worm and gear, the tangent relationship between the 2 surfaces is optimal.
The efficiency of worm gear drives is largely dependent on the helix angle of the worm. Multiple thread worms can improve the efficiency of the worm gear drive by as much as 25 to 50% compared to single-thread worms. Worm gears are made of bronze, which reduces friction and heat on the worm’s teeth. A specialized machine can cut the worm gears for maximum efficiency.

Double-thread worm gears

In many different applications, worm gears are used to drive a worm wheel. These gears are unique in that the worm cannot be reversed by the power applied to the worm wheel. Because of their self-locking properties, they can be used to prevent reversing motion, although this is not a dependable function. Applications for worm gears include hoisting equipment, elevators, chain blocks, fishing reels, and automotive power steering. Because of their compact size, these gears are often used in applications with limited space.
Worm sets typically exhibit more wear than other types of gears, and this means that they require more limited contact patterns in new parts. Worm wheel teeth are concave, making it difficult to measure tooth thickness with pins, balls, and gear tooth calipers. To measure tooth thickness, however, you can measure backlash, a measurement of the spacing between teeth in a gear. Backlash can vary from 1 worm gear to another, so it is important to check the backlash at several points. If the backlash is different in 2 places, this indicates that the teeth may have different spacing.
Single-thread worm gears provide high speed reduction but lower efficiency. A multi-thread worm gear can provide high efficiency and high speed, but this comes with a trade-off in terms of horsepower. However, there are many other applications for worm gears. In addition to heavy-duty applications, they are often used in light-duty gearboxes for a variety of functions. When used in conjunction with double-thread worms, they allow for a substantial speed reduction in 1 step.
Stainless-steel worm gears can be used in damp environments. The worm gear is not susceptible to rust and is ideal for wet and damp environments. The worm wheel’s smooth surfaces make cleaning them easy. However, they do require lubricants. The most common lubricant for worm gears is mineral oil. This lubricant is designed to protect the worm drive.
worm shaft

Self-locking worm drive

A self-locking worm drive prevents the platform from moving backward when the motor stops. A dynamic self-locking worm drive is also possible but does not include a holding brake. This type of self-locking worm drive is not susceptible to vibrations, but may rattle if released. In addition, it may require an additional brake to keep the platform from moving. A positive brake may be necessary for safety.
A self-locking worm drive does not allow for the interchangeability of the driven and driving gears. This is unlike spur gear trains that allow both to interchange positions. In a self-locking worm drive, the driving gear is always engaged and the driven gear remains stationary. The drive mechanism locks automatically when the worm is operated in the wrong manner. Several sources of information on self-locking worm gears include the Machinery’s Handbook.
A self-locking worm drive is not difficult to build and has a great mechanical advantage. In fact, the output of a self-locking worm drive cannot be backdriven by the input shaft. DIYers can build a self-locking worm drive by modifying threaded rods and off-the-shelf gears. However, it is easier to make a ratchet and pawl mechanism, and is significantly less expensive. However, it is important to understand that you can only drive 1 worm at a time.
Another advantage of a self-locking worm drive is the fact that it is not possible to interchange the input and output shafts. This is a major benefit of using such a mechanism, as you can achieve high gear reduction without increasing the size of the gear box. If you’re thinking about buying a self-locking worm gear for a specific application, consider the following tips to make the right choice.
An enveloping worm gear set is best for applications requiring high accuracy and efficiency, and minimum backlash. Its teeth are shaped differently, and the worm’s threads are modified to increase surface contact. They are more expensive to manufacture than their single-start counterparts, but this type is best for applications where accuracy is crucial. The worm drive is also a great option for heavy trucks because of their large size and high-torque capacity.

China Good quality Wheel Hub Bearing 51750-3D000 for Hyundai   with high qualityChina Good quality Wheel Hub Bearing 51750-3D000 for Hyundai   with high quality

China Professional Wheel Hub Bearing for Hyundai Trajet, Santa FE 52710-3A101 wholesaler

Product Description

Wheel hub bearing for Hyundai Trajet,; SANTA FE 52710-3A101
1.; Product Description:;
(1);.; Part Number:; 52710-3A101
(2);.; Application:; Hyundai Trajet,; SANTA FE
(3);.; Market type:; After market
(4);.; Packaging Detail:; Neutral packing or according to customer’s requirement.;

2.; Products features:;
(1);.; Made of high-quality GCR15 Chrome Steel.;
(2);.; Perfect process,; high reliability.;
(3);.; Superior quality(ISO9001,; TS16949 standard);,; long working life.;
(4);.; Competitive price.;
(5);.; OEM Service.;

We are specialize in manufacturing wide range of automotive wheel bearing,; wheel hub bearing,; wheel hub for European and American,; Japanese,; Korean automobiles:;
1.; The DAC Series wheel bearing;
2.; The Second generation wheel Hub Units;
3.; The Third generation wheel Hub bearing;

For more information please send your specific inquiry or OEM part No.; To us,; and we will reply you without delay!

We also produce some other bearings as following:;

FC-HY-1001 51720-29400       38BWD19 LANTRA II
FC-HY-1002 51720-38110   45BWD03CA101 SONATA   2002-2002
FC-HY-1003 51720-34000    40BWD07CA85 SONATA  1995-1998
FC-HY-1004 51720-2D200         SONATA   1999-2001
FC-HY-1005 51720-2D000        ELANTRA  2001-2006
FC-HY-1006 51720-36200       40BWD07  ETERNA SIGMA
FC-HY-1007 52710-26510           4T-CRI-0821 TRUCK
FC-HY-1008 LM48548/10 PORTER VAN
FC-HY-1009 51720-24000 ELANTRA  1992-1995
FC-HY-1571 51750-24500 ACCENT (X-3);
FC-HY-1011 51750-29000 LANTRA I
FC-HY-1012 51750-29100 LANTRA 
FC-HY-1013 51750-25001 HYUNDAI
FC-HY-1014 51750-2D003 HYUNDAI
FC-HY-2001 52710-34501         SONATA
FC-HY-2002 52710-22000          ACCENT  1995-1996
FC-HY-2003 52710-29150         ELANTRA
FC-HY-2004 52710-29100         ACCENT
FC-HY-2005 52710-25100        ACCENT  2005-2005
FC-HY-2006 52710-25000      ELANTRA  2001-2005
FC-HY-2007 52710-2D000         ELANTRA  2001-2005
FC-HY-2008 52710-2D100         ELANTRA  2001-2005
FC-HY-2009 52750-26100         HYUNDAI TRUCK SANTA
FC-HY-2571 52710-3A001       HYUNDAI TRUCK
FC-HY-2011 52710-2C100        TIBURON
FC-HY-2012 52710-2C000         TIBURON
FC-HY-3001 52750-1G000 HYUNDAI
FC-HY-3002 52730-39000        XG Serie
FC-HY-3003 52730-38100         SONATA
FC-HY-3004   52730-38000        SONATA 1999-2004
FC-HY-3005 52750-1G100 Hyundai Accent (MC);
FC-HY-3006 52730-39000 Hyundai:; XG 
FC-HY-3007 52710-25100 Hyundai Accent 
FC-HY-3008 52710-3A100 Hyundai Trajet (FO);
FC-HY-3009 52710-22600B Hyundai Accent
FC-HY-3571 51750-29000 Hyundai Lantra(J-1);
FC-HY-3011 51750-29100 Hyundai Lantra(J-1);
FC-KI-1001 0K9A2-33-047    42BWD11CA56  SPECTRA
FC-KI-1002 45BWD03CA101 TRUCK
FC-KI-1003 38BWD19 KIA
FC-KI-1004 510076   OPTIMA
FC-KI-1005 0K552-33-047        513058 TRUCK
FC-KI-2001 0K202-26-150       512200    SXIHU (WEST LAKE) DIS. 
FC-KI-2002 512194  SPECTRA
FC-KI-3001 512195  SPECTRA
FC-KI-3002 512190 OPTIMA
FC-KI-3003 512191 OPTIMA
FC-DA-1001 926734001      DAC34640037 LANOS,;KLAT
FC-DA-1002 94535253           510065 LEGANZA
FC-DA-1003        DAC39720037 LANOS
FC-DA-1004 96115666 DAEWOO
FC-DA-1005 96535041 DAEWOO
FC-DA-1006 96176252 MATIZ
FC-DA-1007 96162249 DAEWOO
FC-DA-1008 96316757 DAEWOO
FC-DA-1009 95711816 DAEWOO
FC-DA-1571 90157724 DAEWOO
FC-DA-1011 90129572 DAEWOO
FC-DA-2001 96219448            512159 LEGANZA
FC-DA-3001 96639606 DAEWOO
FC-DA-3002 3307.;66 DUCATO 
FC-DA-3003 3350.;29 CRD93L (U25-661);
FC-DA-3004 46519901 BRAVA (182);
FC-DA-3005 4296782 PUNTO (176);
FC-DA-3006 X044438800 FIORINO (127);
FC-DA-3007 4160141 124 1200 (TA
FC-DA-3008 07657422 DUCATO
FC-DA-3009 X044193140 DUNA (146 B);
FC-DA-3571 04400918 PHangZhou (141A_);
FC-DA-3011 608 0571 1 TEMPRA (159);
FC-DA-3012 5719902 BRAVA (182);
FC-DA-3013 765711 PUNTO
FC-DA-3014 7617175 UNO (146A/E);
FC-DA-3015 7746191 DUNA (146 B);
FC-DA-3016 71714474 SCUDO Combinato (220P);
FC-DA-3017 71714473 SCUDO Combinato (220P);
FC-DA-3018 71714457 BRAVA (182);
FC-DA-3019 589571 CINQUECENTO (170);
FC-DA-3571 589571 TEMPRA (159); 1.;6
FC-DA-3571 5890987  BRAVA (182);
FC-DA-3571 4399856  PHangZhou (141A_); 1000
FC-DA-3571 3350.;28 SCUDO Combinato (220P);
FC-DA-3571 60809668 CROMA (154);
FC-DA-3571 3307.;65  DUCATO Flatbed/Chassis (230);
FC-DA-3026 3307.;64 SCUDO Combinato (220P);
FC-DA-3571 82462175 CROMA (154);
FC-DA-3571 6571141 CROMA (154);
FC-DA-3571 6571137 CROMA (154); 1985/12 – 1996/12
FC-DA-3030 60545087 BRAVO (182);   1995/10 – 2001/10
FC-DA-3031 7750120 BRAVA (182
FC-DA-3032 7595521 BRAVA (182); 1.;4
FC-DA-3033 4341664 127  1971/06 – 1986/12
FC-DA-3034 440571 PHangZhou (141A_);
FC-DA-3035 4459689 ELBA  1986/04 – 1996/12
FC-DA-3036 5927842 PHangZhou (141A_); 1000
FC-DA-3037 5963034 PHangZhou (141A_); 1000
FC-DA-3038 7522385 DOBLO (223); 1.;2 
FC-DA-3039 7531818 DUCATO Panorama (280);
FC-DA-3040 7591328 DUNA (146 B);
FC-DA-3041 7634578 DUNA (146 B);
FC-DA-3042 7641450 REGATA (138);
FC-DA-3043 7717348 UNO (146A/E);
FC-DA-3044 46447445 PALIO (178BX);
FC-DA-3045 46554135 DOBLO (223);
FC-DA-3046 46745258 DOBLO (223);
FC-DA-3047 1328045080 DUCATO Flatbed/Chassis (230);
FC-DA-3048 132857180 DUCATO

Lead Screws and Clamp Style Collars

If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:

Acme thread

The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.

Lead screw coatings

The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.

Clamp style collars

The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these 2 styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.

Ball screw nut

The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during 1 rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with 1 or 2 independent closed paths. Multi-circuit ball nuts have 2 or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.

China Professional Wheel Hub Bearing for Hyundai Trajet, Santa FE 52710-3A101   wholesaler China Professional Wheel Hub Bearing for Hyundai Trajet, Santa FE 52710-3A101   wholesaler

China Best Sales Rear Axle Ball Bearing Wheel Bearing Kit Vkba6809 52750-1c100 52750-1g101 for Hyundai Accent and for KIA Picanto near me factory

Product Description

Basic information:

Description Rear Axle Ball Bearing Wheel Bearing Kit VKBA6809 52750-1C100 52750-1G101 For HYUNDAI ACCENT And For KIA PICANTO
Material Chrome steel Gcr15
Application For Hyundai & KIA
Position Rear wheel
With ABS Yes
Bolts 4 bolts
Weight 3.1 kg
Brand SI, PPB, or customized
Packing Neutral, SI, PPB brand packing or customized
OEM/ODM service Yes
Manufacture place ZHangZhoug, China
OEM replacement Yes
Inspection 100%
Warranty 1 year or 40,000-50,000 KMS
Certificate ISO9001:2015 TS16949
Payment T/T, PayPal, Alibaba
Advantages Specialized features/benefits
Less vibration and noise
Less energy consumption
Quality approvals
Improved fatigue life
Reduced noise vibration
Super finished raceways

Detailed pictures:



VKBA 6809

For HYUNDAI ACCENT III Saloon (MC) 2005-2012
For HYUNDAI GETZ (TB) 2002-2571
For HYUNDAI i10 (PA) 2008-2017
For HYUNDAI i20 (PB, PBT) 2008-2015
For KIA PICANTO (SA) 2004-
For KIA RIO II (JB) 2005-

Packing and Delivery:

Work shop:


Q1.What is your shipping logistic?
Re: DHL, TNT, FedEx express, by air/sea/train.

Q2:What’s the MOQ?
Re: For the wheel hub assembly. The MOQ is always 50 sets. If ordering together with other models, small quantities can be organized. But need more time due to the production schedule.

Q3. What are your goods of packing?
Re: Generally, our goods will be packed in Neutral white or brown boxes for the hub bearing unit. Our brand packing SI & CZPT are offered. If you have any other packing requests, we shall also handle them.

Q4. What is your sample policy?
Re: We can supply the sample if we have ready parts in stock.

Q5. Do you have any certificates?
Re: Yes, we have the certificate of ISO9001:2015.

Q6:Any warranty of your products.
Re: Sure, We are offering a guarantee for 12 months or 40,000-50,000 km for the aftermarket.

Q7: How can I make an inquiry?

Re: You can contact us by email, telephone, WhatsApp, , etc.


Q8: How long can reply inquiry?

Re: Within 24 hours.


Q9: What’s the delivery time?

Re: Ready stock 10-15 days, production for 30 to 45 days.


Q10: How do you maintain our good business relationship?

Re: 1. Keep stable, reliable quality, competitive price to ensure our customer’s benefit;

2. Optimal lead time.

3. Keep customers updated about the new goods.

4. Make customers satisfaction as our main goal.


Q11: Can we visit the company & factory?

Re: Yes, welcome for your visit & business discussion.


The Different Types of Splines in a Splined Shaft

A splined shaft is a machine component with internal and external splines. The splines are formed in 4 different ways: Involute, Parallel, Serrated, and Ball. You can learn more about each type of spline in this article. When choosing a splined shaft, be sure to choose the right 1 for your application. Read on to learn about the different types of splines and how they affect the shaft’s performance.

Involute splines

Involute splines in a splined shaft are used to secure and extend mechanical assemblies. They are smooth, inwardly curving grooves that resist separation during operation. A shaft with involute splines is often longer than the shaft itself. This feature allows for more axial movement. This is beneficial for many applications, especially in a gearbox.
The involute spline is a shaped spline, similar to a parallel spline. It is angled and consists of teeth that create a spiral pattern that enables linear and rotatory motion. It is distinguished from other splines by the serrations on its flanks. It also has a flat top. It is a good option for couplers and other applications where angular movement is necessary.
Involute splines are also called involute teeth because of their shape. They are flat on the top and curved on the sides. These teeth can be either internal or external. As a result, involute splines provide greater surface contact, which helps reduce stress and fatigue. Regardless of the shape, involute splines are generally easy to machine and fit.
Involute splines are a type of splines that are used in splined shafts. These splines have different names, depending on their diameters. An example set of designations is for a 32-tooth male spline, a 2,500-tooth module, and a 30 degree pressure angle. An example of a female spline, a fillet root spline, is used to describe the diameter of the splined shaft.
The effective tooth thickness of splines is dependent on the number of keyways and the type of spline. Involute splines in splined shafts should be designed to engage 25 to 50 percent of the spline teeth during the coupling. Involute splines should be able to withstand the load without cracking.

Parallel splines

Parallel splines are formed on a splined shaft by putting 1 or more teeth into another. The male spline is positioned at the center of the female spline. The teeth of the male spline are also parallel to the shaft axis, but a common misalignment causes the splines to roll and tilt. This is common in many industrial applications, and there are a number of ways to improve the performance of splines.
Typically, parallel splines are used to reduce friction in a rotating part. The splines on a splined shaft are narrower on the end face than the interior, which makes them more prone to wear. This type of spline is used in a variety of industries, such as machinery, and it also allows for greater efficiency when transmitting torque.
Involute splines on a splined shaft are the most common. They have equally spaced teeth, and are therefore less likely to crack due to fatigue. They also tend to be easy to cut and fit. However, they are not the best type of spline. It is important to understand the difference between parallel and involute splines before deciding on which spline to use.
The difference between splined and involute splines is the size of the grooves. Involute splines are generally larger than parallel splines. These types of splines provide more torque to the gear teeth and reduce stress during operation. They are also more durable and have a longer life span. And because they are used on farm machinery, they are essential in this type of application.

Serrated splines

A Serrated Splined Shaft has several advantages. This type of shaft is highly adjustable. Its large number of teeth allows large torques, and its shorter tooth width allows for greater adjustment. These features make this type of shaft an ideal choice for applications where accuracy is critical. Listed below are some of the benefits of this type of shaft. These benefits are just a few of the advantages. Learn more about this type of shaft.
The process of hobbing is inexpensive and highly accurate. It is useful for external spline shafts, but is not suitable for internal splines. This type of process forms synchronized shapes on the shaft, reducing the manufacturing cycle and stabilizing the relative phase between spline and thread. It uses a grinding wheel to shape the shaft. CZPT Manufacturing has a large inventory of Serrated Splined Shafts.
The teeth of a Serrated Splined Shaft are designed to engage with the hub over the entire circumference of the shaft. The teeth of the shaft are spaced uniformly around the spline, creating a multiple-tooth point of contact over the entire length of the shaft. The results of these analyses are usually satisfactory. But there are some limitations. To begin with, the splines of the Serrated Splined Shaft should be chosen carefully. If the application requires large-scale analysis, it may be necessary to modify the design.
The splines of the Serrated Splined Shaft are also used for other purposes. They can be used to transmit torque to another device. They also act as an anti-rotational device and function as a linear guide. Both the design and the type of splines determine the function of the Splined Shaft. In the automobile industry, they are used in vehicles, aerospace, earth-moving machinery, and many other industries.

Ball splines

The invention relates to a ball-spinned shaft. The shaft comprises a plurality of balls that are arranged in a series and are operatively coupled to a load path section. The balls are capable of rolling endlessly along the path. This invention also relates to a ball bearing. Here, a ball bearing is 1 of the many types of gears. The following discussion describes the features of a ball bearing.
A ball-splined shaft assembly comprises a shaft with at least 1 ball-spline groove and a plurality of circumferential step grooves. The shaft is held in a first holding means that extends longitudinally and is rotatably held by a second holding means. Both the shaft and the first holding means are driven relative to 1 another by a first driving means. It is possible to manufacture a ball-splined shaft in a variety of ways.
A ball-splined shaft features a nut with recirculating balls. The ball-splined nut rides in these grooves to provide linear motion while preventing rotation. A splined shaft with a nut that has recirculating balls can also provide rotary motion. A ball splined shaft also has higher load capacities than a ball bushing. For these reasons, ball splines are an excellent choice for many applications.
In this invention, a pair of ball-spinned shafts are housed in a box under a carrier device 40. Each of the 2 shafts extends along a longitudinal line of arm 50. One end of each shaft is supported rotatably by a slide block 56. The slide block also has a support arm 58 that supports the center arm 50 in a cantilever fashion.

Sector no-go gage

A no-go gauge is a tool that checks the splined shaft for oversize. It is an effective way to determine the oversize condition of a splined shaft without removing the shaft. It measures external splines and serrations. The no-go gage is available in sizes ranging from 19mm to 130mm with a 25mm profile length.
The sector no-go gage has 2 groups of diametrally opposed teeth. The space between them is manufactured to a maximum space width and the tooth thickness must be within a predetermined tolerance. This gage would be out of tolerance if the splines were measured with a pin. The dimensions of this splined shaft can be found in the respective ANSI or DIN standards.
The go-no-go gage is useful for final inspection of thread pitch diameter. It is also useful for splined shafts and threaded nuts. The thread of a screw must match the contour of the go-no-go gage head to avoid a no-go condition. There is no substitute for a quality machine. It is an essential tool for any splined shaft and fastener manufacturer.
The NO-GO gage can detect changes in tooth thickness. It can be calibrated under ISO17025 standards and has many advantages over a non-go gage. It also gives a visual reference of the thickness of a splined shaft. When the teeth match, the shaft is considered ready for installation. It is a critical process. In some cases, it is impossible to determine the precise length of the shaft spline.
The 45-degree pressure angle is most commonly used for axles and torque-delivering members. This pressure angle is the most economical in terms of tool life, but the splines will not roll neatly like a 30 degree angle. The 45-degree spline is more likely to fall off larger than the other two. Oftentimes, it will also have a crowned look. The 37.5 degree pressure angle is a compromise between the other 2 pressure angles. It is often used when the splined shaft material is harder than usual.

China Best Sales Rear Axle Ball Bearing Wheel Bearing Kit Vkba6809 52750-1c100 52750-1g101 for Hyundai Accent and for KIA Picanto   near me factory China Best Sales Rear Axle Ball Bearing Wheel Bearing Kit Vkba6809 52750-1c100 52750-1g101 for Hyundai Accent and for KIA Picanto   near me factory

China Professional Axle Front Wheel Bearing Hub Japan Auto Rear Wheel Hub Bearing for CZPT Vitsz Hiace Altis CZPT Grandis L200 CZPT Hyundai Nissan Honda near me manufacturer

Product Description

HOT Sale Automotive Front Wheel Hub Bearing Assembly for Japan Car (45712-CG110) (45712-EJ70B) For Infiniti FX35-FX45

Part Name Shock Absorber
Application Auto Suspension System
car maker for CZPT Vitsz Hiace Altis CZPT Grandis L2 48530-20820 
Placement on Vehicle Suspension System
Material Aluminum/iron/Steel
Warranty 12 Months
Sample Available
Price $20-$25
Place of origin HangZhou
Delivery time 1-7 days for stock items, 65 days for produced items
Payment L/C,T/T,Western Union,PayPal

1.Are you trading company or factory? 
   We are invested factory with trading company.

2.What products does your company supply for CZPT brand?
   1) Control arm and ball joint tie rod end, rack end, linkage.
   2) Drive shaft, cv joint, and tripod joints
   3) Wheel hub, wheel bearing
   4) Brake pads, brake shoes, brake caliper ,brake disc
   5) Steering rack, steering pump, steering knuckle
   6) Shock absorber
   7) Engine mount
   8) Clutch plate, clutch cover
   9) Ignition coil, clock spring ,
  10) fuel pump, oil filter, fan belt timing, belt tensioner pully

3.What is the MOQ for each items?
   If the items we have stock, there is no limitation for moq, and narmally MOQ as 10pcs is acceptable.

4.Do you give any guarantee to your products?
   Yes, we have 1years quality guarantee. Only brake pad, brake shoe, fan belt timing belt is gurantee 30000KM.

5.How does to control your CZPT products ?
   1.There is advanced equipment,professional and technical workersin the factory.
   2.Factory will have sample testing on quality before shipment.
   3.Our QC(QUALITY CONTROL) will check the quality of each productbefore shipment

6. How long for delivery time after pay deposit?
    -Usually 20-35 days for production.
    Some hot sales items have stock.

7. Which countries have you exported for CZPT brand ?
   ASIA:Iraq, Lebanon, UAE, Turkey, Malaysia, Vietnam, LAOS, Thailand, Syria, Saudi Arabia, Kazakhstan, Turkmenistan,                 Azerbaijan.
   EUROPE:Russia, lreland, Uk, Poland, Greece. 
   OCEANIA: Australia, Fiji,Kiribati, New Zealand. 
   SOUTH AMERICA:Panama, Xihu (West Lake) Dis.via, Peru, Chile, Paraguay, Guatemala, Barbados
   NORTH AMERICA : United States, Canada, Mexic, Yamaica
   AFRICA:Nigeria, Angola, Ghana, Egypt, Uganda, Burkina faso, Libya , Mozambique

8.What service can you provide if we buy your brand products?
   1. you can get gifts according to point redemption you have, like U-disk, watches, clothes, cups, etc.
   2.Recommend same market customers to buy from you.

9.What will you do for quality complaint ?
   1.We will respond to customer within 24 hours.
   2.Our QC will retest the same stock item, if confirmed it is quality problem, we will make corresponding compensation.


Screw Shaft Features Explained

When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.


The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.


In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.


The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another.
A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

Helix angle

The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.


The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.


Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.


In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.

China Professional Axle Front Wheel Bearing Hub Japan Auto Rear Wheel Hub Bearing for CZPT Vitsz Hiace Altis CZPT Grandis L200 CZPT Hyundai Nissan Honda   near me manufacturer China Professional Axle Front Wheel Bearing Hub Japan Auto Rear Wheel Hub Bearing for CZPT Vitsz Hiace Altis CZPT Grandis L200 CZPT Hyundai Nissan Honda   near me manufacturer