Tag Archives: rear wheel bearing

China Professional Vkba3225 Rear Wheel Hub Bearing Kit Assembly Unit 43202-72b00 for Nissan Micra I II Without Integrated ABS Sensor with Good quality

Product Description

BASIC INFORMATION

Description Wheel Bearing Kit
Wheel Hub Bearing Assembly
OE Number  432
AL-KO : 62571
ASHIKA : 44-21031
ASHUKI : 1413-3501
AUGROS : 5187628/2
AUTEX : 857169
AUTOKIT : 01.017
Automotive Bearings : ABK1277
AUTOTEAM : RA1364
BENDIX : 0571 18B
BLUE PRINT : ADN18349
BORG & BECK : BWK599
BREDA LORETT : KRT7519
CALIBER : RC1364
CORTECO : 19017856
DELPHI : WBK846
FIRST LINE : FBK599
FISPA : 460612
FLENNOR : FR951437
FREMAX : FWB-0404
FREMAX : FWB-1659
GENERAL RICAMBI : WH571
GENERAL RICAMBI : WH1519K
GSP : 9227571
GSP : 9227571K
HERTH
MAGNETI MARELLI : 6
NK : 762223
NPS : N471N35
OPTIMAL : 962548
PATRON : PBK3225H
PEMEBLA : JAPKK-21031
PEX : 16. 0571
QUINTON HAZELL : QWB868
QUINTON HAZELL : QWB939
RUVILLE : 6824
SIDAT : 460612
SPIDAN : 26874
STELLOX : 43-28624-SX
TRISCAN : 8530 14213
TRISCAN : 8530 14213A
VAICO : V38-0088
WERTHENBACH : 7062
MOOG : NI-WB-11998

APPLICABLE CAR MODELS

Vehicle Models Active Years Engine Displacement Power Cons.Type
NISSAN  MICRA I (K10) 1.2 1986-1992 MA12S 1235 40 Hatchback
NISSAN  MICRA II (K11) 1.0 i 16V 2000-2003 CG10DE 998 44 Hatchback
NISSAN  MICRA II (K11) 1.5 D 1998-2003 TD15 1527 42 Hatchback

DETAILED IMAGES

PACKAGING & SHIPPING

Packaging Details 1 piece in a single box
2 boxes in a carton
30 cartons in a pallet
Nearest Port ZheJiang or HangZhou
Lead Time For stock parts: 1-5 days.
If no stock parts:
<20 pcs: 15-30 days
≥20 pcs: to be negotiated.

OUR SERVICES
– We have more than 20 years experience in auto bearings fields.
– Excellent quality control is 1 of our main principles
– We offer OEM service, accept customer label, develop the product with your drawings or samples
– Any questions will get response within 24 hours.

FAQ

1.How do you make our business long-term and good relationship? 
– We keep good quality and competitive price to ensure our customers benefit ;
– We respect every customer as our friend and we sincerely do business and make friends with them,
  no matter where they come from.

 

2.Do you test all your goods before delivery?
– Yes, we have 100% test before delivery

3. What is your terms of payment?
– T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages
before you pay the balance.

4. What is your terms of delivery?
– EXW, FOB, CFR, CIF, DDU.
 

What Are Worm Gears and Worm Shafts?

If you’re looking for a fishing reel with a worm gear system, you’ve probably come across the term ‘worm gear’. But what are worm gears and worm shafts? And what are the advantages and disadvantages of worm gears? Let’s take a closer look! Read on to learn more about worm gears and shafts! Then you’ll be well on your way to purchasing a reel with a worm gear system.
worm shaft

worm gear reducers

Worm shaft reducers have a number of advantages over conventional gear reduction mechanisms. First, they’re highly efficient. While single stage worm reducers have a maximum reduction ratio of about 5 to 60, hypoid gears can typically go up to a maximum of 1 hundred and 20 times. A worm shaft reducer is only as efficient as the gearing it utilizes. This article will discuss some of the advantages of using a hypoid gear set, and how it can benefit your business.
To assemble a worm shaft reducer, first remove the flange from the motor. Then, remove the output bearing carrier and output gear assembly. Lastly, install the intermediate worm assembly through the bore opposite to the attachment housing. Once installed, you should carefully remove the bearing carrier and the gear assembly from the motor. Don’t forget to remove the oil seal from the housing and motor flange. During this process, you must use a small hammer to tap around the face of the plug near the outside diameter of the housing.
Worm gears are often used in reversing prevention systems. The backlash of a worm gear can increase with wear. However, a duplex worm gear was designed to address this problem. This type of gear requires a smaller backlash but is still highly precise. It uses different leads for the opposing tooth face, which continuously alters its tooth thickness. Worm gears can also be adjusted axially.

worm gears

There are a couple of different types of lubricants that are used in worm gears. The first, polyalkylene glycols, are used in cases where high temperature is not a concern. This type of lubricant does not contain any waxes, which makes it an excellent choice in low-temperature applications. However, these lubricants are not compatible with mineral oils or some types of paints and seals. Worm gears typically feature a steel worm and a brass wheel. The brass wheel is much easier to remodel than steel and is generally modeled as a sacrificial component.
The worm gear is most effective when it is used in small and compact applications. Worm gears can greatly increase torque or reduce speed, and they are often used where space is an issue. Worm gears are among the smoothest and quietest gear systems on the market, and their meshing effectiveness is excellent. However, the worm gear requires high-quality manufacturing to perform at its highest levels. If you’re considering a worm gear for a project, it’s important to make sure that you find a manufacturer with a long and high quality reputation.
The pitch diameters of both worm and pinion gears must match. The 2 worm cylinders in a worm wheel have the same pitch diameter. The worm wheel shaft has 2 pitch cylinders and 2 threads. They are similar in pitch diameter, but have different advancing angles. A self-locking worm gear, also known as a wormwheel, is usually self-locking. Moreover, self-locking worm gears are easy to install.

worm shafts

The deflection of worm shafts varies with toothing parameters. In addition to toothing length, worm gear size and pressure angle, worm gear size and number of helical threads are all influencing factors. These variations are modeled in the standard ISO/TS 14521 reference gear. This table shows the variations in each parameter. The ID indicates the worm shaft’s center distance. In addition, a new calculation method is presented for determining the equivalent bending diameter of the worm.
The deflection of worm shafts is investigated using a four-stage process. First, the finite element method is used to compute the deflection of a worm shaft. Then, the worm shaft is experimentally tested, comparing the results with the corresponding simulations. The final stage of the simulation is to consider the toothing geometry of 15 different worm gear toothings. The results of this step confirm the modeled results.
The lead on the right and left tooth surfaces of worms is the same. However, the lead can be varied along the worm shaft. This is called dual lead worm gear, and is used to eliminate play in the main worm gear of hobbing machines. The pitch diameters of worm modules are equal. The same principle applies to their pitch diameters. Generally, the lead angle increases as the number of threads decreases. Hence, the larger the lead angle, the less self-locking it becomes.
worm shaft

worm gears in fishing reels

Fishing reels usually include worm shafts as a part of the construction. Worm shafts in fishing reels allow for uniform worm winding. The worm shaft is attached to a bearing on the rear wall of the reel unit through a hole. The worm shaft’s front end is supported by a concave hole in the front of the reel unit. A conventional fishing reel may also have a worm shaft attached to the sidewall.
The gear support portion 29 supports the rear end of the pinion gear 12. It is a thick rib that protrudes from the lid portion 2 b. It is mounted on a bushing 14 b, which has a through hole through which the worm shaft 20 passes. This worm gear supports the worm. There are 2 types of worm gears available for fishing reels. The 2 types of worm gears may have different number of teeth or they may be the same.
Typical worm shafts are made of stainless steel. Stainless steel worm shafts are especially corrosion-resistant and durable. Worm shafts are used on spinning reels, spin-casting reels, and in many electrical tools. A worm shaft can be reversible, but it is not entirely reliable. There are numerous benefits of worm shafts in fishing reels. These fishing reels also feature a line winder or level winder.

worm gears in electrical tools

Worms have different tooth shapes that can help increase the load carrying capacity of a worm gear. Different tooth shapes can be used with circular or secondary curve cross sections. The pitch point of the cross section is the boundary for this type of mesh. The mesh can be either positive or negative depending on the desired torque. Worm teeth can also be inspected by measuring them over pins. In many cases, the lead thickness of a worm can be adjusted using a gear tooth caliper.
The worm shaft is fixed to the lower case section 8 via a rubber bush 13. The worm wheel 3 is attached to the joint shaft 12. The worm 2 is coaxially attached to the shaft end section 12a. This joint shaft connects to a swing arm and rotates the worm wheel 3.
The backlash of a worm gear may be increased if the worm is not mounted properly. To fix the problem, manufacturers have developed duplex worm gears, which are suitable for small backlash applications. Duplex worm gears utilize different leads on each tooth face for continuous change in tooth thickness. In this way, the center distance of the worm gear can be adjusted without changing the worm’s design.

worm gears in engines

Using worm shafts in engines has a few benefits. First of all, worm gears are quiet. The gear and worm face move in opposite directions so the energy transferred is linear. Worm gears are popular in applications where torque is important, such as elevators and lifts. Worm gears also have the advantage of being made from soft materials, making them easy to lubricate and to use in applications where noise is a concern.
Lubricants are necessary for worm gears. The viscosity of lubricants determines whether the worm is able to touch the gear or wheel. Common lubricants are ISO 680 and 460, but higher viscosity oil is not uncommon. It is essential to use the right lubricants for worm gears, since they cannot be lubricated indefinitely.
Worm gears are not recommended for engines due to their limited performance. The worm gear’s spiral motion causes a significant reduction in space, but this requires a high amount of lubrication. Worm gears are susceptible to breaking down because of the stress placed on them. Moreover, their limited speed can cause significant damage to the gearbox, so careful maintenance is essential. To make sure worm gears remain in top condition, you should inspect and clean them regularly.
worm shaft

Methods for manufacturing worm shafts

A novel approach to manufacturing worm shafts and gearboxes is provided by the methods of the present invention. Aspects of the technique involve manufacturing the worm shaft from a common worm shaft blank having a defined outer diameter and axial pitch. The worm shaft blank is then adapted to the desired gear ratio, resulting in a gearbox family with multiple gear ratios. The preferred method for manufacturing worm shafts and gearboxes is outlined below.
A worm shaft assembly process may involve establishing an axial pitch for a given frame size and reduction ratio. A single worm shaft blank typically has an outer diameter of 100 millimeters, which is the measurement of the worm gear set’s center distance. Upon completion of the assembly process, the worm shaft has the desired axial pitch. Methods for manufacturing worm shafts include the following:
For the design of the worm gear, a high degree of conformity is required. Worm gears are classified as a screw pair in the lower pairs. Worm gears have high relative sliding, which is advantageous when comparing them to other types of gears. Worm gears require good surface finish and rigid positioning. Worm gear lubrication usually comprises surface active additives such as silica or phosphor-bronze. Worm gear lubricants are often mixed. The lubricant film that forms on the gear teeth has little impact on wear and is generally a good lubricant.

China Professional Vkba3225 Rear Wheel Hub Bearing Kit Assembly Unit 43202-72b00 for Nissan Micra I II Without Integrated ABS Sensor   with Good qualityChina Professional Vkba3225 Rear Wheel Hub Bearing Kit Assembly Unit 43202-72b00 for Nissan Micra I II Without Integrated ABS Sensor   with Good quality

China wholesaler Vkba3704 Rear Wheel Hub Bearing Kit Assembly Unit 43200-4f800 with Integrated ABS Sensor for Nissan Micra II 1998-2003 near me shop

Product Description

BASIC INFORMATION

Description Wheel Bearing Kit
Wheel Hub Bearing Assembly
OE Number  432
AL-KO : 62571
ALANKO : 10343276
ASHIKA : 44-21032
ASVA : NSWH-K11RA42
AUTEX : 857150
AUTOKIT : 01.038
Automotive Bearings : ABK1304
AUTOTEAM : RA1345
BENDIX : 0571 10B
BLUE PRINT : ADN18376
BORG & BECK : BWK6
SPIDAN : 26980
CAUTEX : 765715
CORTECO : 19571645
DELPHI : WBK1035
FEBI BILSTEIN : 31227
FIRST LINE : FBK6
FLENNOR : FR951370
GSP : 9227017
GSP : 9227017K
HERTH
TRISCAN : 8530 14224
MAGNETI MARELLI :
MAXGEAR : 33-5717
Metalcaucho : 9571
METALCAUCHO : T49571
MEYLE : 36-
MOOG : NI-WB-11996
MOTAQUIP : VBK955
Multiparts : 70-06571
NK : 762224
NPS : N471N36
OPTIMAL : 962481
PATRON : PBK3704
PEMEBLA : JAPKK-21032
PEX : 16.0703
QUINTON HAZELL : QWB869
RUVILLE : 6838
RUVILLE : 6866
VAICO : V38-5715

APPLICABLE CAR MODELS

Vehicle Models Active Years Engine Displacement Power Cons.Type
NISSAN MICRA II (K11) 1.0 i 16V 1992-2000 CG10DE 998 40 Hatchback
NISSAN MICRA II (K11) 1.3 i 16V 1992-2000 CG13DE 1275 55 Hatchback
NISSAN MICRA II (K11) 1.4 i 16V 2000-2003 CGA3DE 1348 60 Hatchback
NISSAN MICRA II (K11) 1.5 D 1998-2003 TD15 1527 42 Hatchback

DETAILED IMAGES

PACKAGING & SHIPPING

Packaging Details 1 piece in a single box
2 boxes in a carton
30 cartons in a pallet
Nearest Port ZheJiang or HangZhou
Lead Time For stock parts: 1-5 days.
If no stock parts:
<20 pcs: 15-30 days
≥20 pcs: to be negotiated.

OUR SERVICES
– We have more than 20 years experience in auto bearings fields.
– Excellent quality control is 1 of our main principles
– We offer OEM service, accept customer label, develop the product with your drawings or samples
– Any questions will get response within 24 hours.

FAQ

1.How do you make our business long-term and good relationship? 
– We keep good quality and competitive price to ensure our customers benefit ;
– We respect every customer as our friend and we sincerely do business and make friends with them,
  no matter where they come from.

 

2.Do you test all your goods before delivery?
– Yes, we have 100% test before delivery

3. What is your terms of payment?
– T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages
before you pay the balance.

4. What is your terms of delivery?
– EXW, FOB, CFR, CIF, DDU.
 

What Are the Advantages of a Splined Shaft?

If you are looking for the right splined shaft for your machine, you should know a few important things. First, what type of material should be used? Stainless steel is usually the most appropriate choice, because of its ability to offer low noise and fatigue failure. Secondly, it can be machined using a slotting or shaping machine. Lastly, it will ensure smooth motion. So, what are the advantages of a splined shaft?
Stainless steel is the best material for splined shafts

When choosing a splined shaft, you should consider its hardness, quality, and finish. Stainless steel has superior corrosion and wear resistance. Carbon steel is another good material for splined shafts. Carbon steel has a shallow carbon content (about 1.7%), which makes it more malleable and helps ensure smooth motion. But if you’re not willing to spend the money on stainless steel, consider other options.
There are 2 main types of splines: parallel splines and crowned splines. Involute splines have parallel grooves and allow linear and rotary motion. Helical splines have involute teeth and are oriented at an angle. This type allows for many teeth on the shaft and minimizes the stress concentration in the stationary joint.
Large evenly spaced splines are widely used in hydraulic systems, drivetrains, and machine tools. They are typically made from carbon steel (CR10) and stainless steel (AISI 304). This material is durable and meets the requirements of ISO 14-B, formerly DIN 5463-B. Splined shafts are typically made of stainless steel or C45 steel, though there are many other materials available.
Stainless steel is the best material for a splined shaft. This metal is also incredibly affordable. In most cases, stainless steel is the best choice for these shafts because it offers the best corrosion resistance. There are many different types of splined shafts, and each 1 is suited for a particular application. There are also many different types of stainless steel, so choose stainless steel if you want the best quality.
For those looking for high-quality splined shafts, CZPT Spline Shafts offer many benefits. They can reduce costs, improve positional accuracy, and reduce friction. With the CZPT TFE coating, splined shafts can reduce energy and heat buildup, and extend the life of your products. And, they’re easy to install – all you need to do is install them.
splineshaft

They provide low noise, low wear and fatigue failure

The splines in a splined shaft are composed of 2 main parts: the spline root fillet and the spline relief. The spline root fillet is the most critical part, because fatigue failure starts there and propagates to the relief. The spline relief is more susceptible to fatigue failure because of its involute tooth shape, which offers a lower stress to the shaft and has a smaller area of contact.
The fatigue life of splined shafts is determined by measuring the S-N curve. This is also known as the Wohler curve, and it is the relationship between stress amplitude and number of cycles. It depends on the material, geometry and way of loading. It can be obtained from a physical test on a uniform material specimen under a constant amplitude load. Approximations for low-alloy steel parts can be made using a lower-alloy steel material.
Splined shafts provide low noise, minimal wear and fatigue failure. However, some mechanical transmission elements need to be removed from the shaft during assembly and manufacturing processes. The shafts must still be capable of relative axial movement for functional purposes. As such, good spline joints are essential to high-quality torque transmission, minimal backlash, and low noise. The major failure modes of spline shafts include fretting corrosion, tooth breakage, and fatigue failure.
The outer disc carrier spline is susceptible to tensile stress and fatigue failure. High customer demands for low noise and low wear and fatigue failure makes splined shafts an excellent choice. A fractured spline gear coupling was received for analysis. It was installed near the top of a filter shaft and inserted into the gearbox motor. The service history was unknown. The fractured spline gear coupling had longitudinally cracked and arrested at the termination of the spline gear teeth. The spline gear teeth also exhibited wear and deformation.
A new spline coupling method detects fault propagation in hollow cylindrical splined shafts. A spline coupling is fabricated using an AE method with the spline section unrolled into a metal plate of the same thickness as the cylinder wall. In addition, the spline coupling is misaligned, which puts significant concentration on the spline teeth. This further accelerates the rate of fretting fatigue and wear.
A spline joint should be lubricated after 25 hours of operation. Frequent lubrication can increase maintenance costs and cause downtime. Moreover, the lubricant may retain abrasive particles at the interfaces. In some cases, lubricants can even cause misalignment, leading to premature failure. So, the lubrication of a spline coupling is vital in ensuring proper functioning of the shaft.
The design of a spline coupling can be optimized to enhance its wear resistance and reliability. Surface treatments, loads, and rotation affect the friction properties of a spline coupling. In addition, a finite element method was developed to predict wear of a floating spline coupling. This method is feasible and provides a reliable basis for predicting the wear and fatigue life of a spline coupling.
splineshaft

They can be machined using a slotting or shaping machine

Machines can be used to shape splined shafts in a variety of industries. They are useful in many applications, including gearboxes, braking systems, and axles. A slotted shaft can be manipulated in several ways, including hobbling, broaching, and slotting. In addition to shaping, splines are also useful in reducing bar diameter.
When using a slotting or shaping machine, the workpiece is held against a pedestal that has a uniform thickness. The machine is equipped with a stand column and limiting column (Figure 1), each positioned perpendicular to the upper surface of the pedestal. The limiting column axis is located on the same line as the stand column. During the slotting or shaping process, the tool is fed in and out until the desired space is achieved.
One process involves cutting splines into a shaft. Straddle milling, spline shaping, and spline cutting are 2 common processes used to create splined shafts. Straddle milling involves a fixed indexing fixture that holds the shaft steady, while rotating milling cutters cut the groove in the length of the shaft. Several passes are required to ensure uniformity throughout the spline.
Splines are a type of gear. The ridges or teeth on the drive shaft mesh with grooves in the mating piece. A splined shaft allows the transmission of torque to a mate piece while maximizing the power transfer. Splines are used in heavy vehicles, construction, agriculture, and massive earthmoving machinery. Splines are used in virtually every type of rotary motion, from axles to transmission systems. They also offer better fatigue life and reliability.
Slotting or shaping machines can also be used to shape splined shafts. Slotting machines are often used to machine splined shafts, because it is easier to make them with these machines. Using a slotting or shaping machine can result in splined shafts of different sizes. It is important to follow a set of spline standards to ensure your parts are manufactured to the highest standards.
A milling machine is another option for producing splined shafts. A spline shaft can be set up between 2 centers in an indexing fixture. Two side milling cutters are mounted on an arbor and a spacer and shims are inserted between them. The arbor and cutters are then mounted to a milling machine spindle. To make sure the cutters center themselves over the splined shaft, an adjustment must be made to the spindle of the machine.
The machining process is very different for internal and external splines. External splines can be broached, shaped, milled, or hobbed, while internal splines cannot. These machines use hard alloy, but they are not as good for internal splines. A machine with a slotting mechanism is necessary for these operations.

China wholesaler Vkba3704 Rear Wheel Hub Bearing Kit Assembly Unit 43200-4f800 with Integrated ABS Sensor for Nissan Micra II 1998-2003   near me shop China wholesaler Vkba3704 Rear Wheel Hub Bearing Kit Assembly Unit 43200-4f800 with Integrated ABS Sensor for Nissan Micra II 1998-2003   near me shop

China high quality Rear Wheel Hub Assembly for VW Jetta IV Wheel Bearing 8V0598611A 1K0598611 713610690 Vkba3656 near me manufacturer

Product Description

Basic information:

Description Rear Wheel Hub Assembly For VW JETTA IV Wheel Bearing 8V571611A 1K571611 713610690 VKBA3656
Material Chrome steel Gcr15
Application For AUDI
For VW
For SEAT
Size Rim Hole Number: 5
Inner diameter: 30 mm
Flange Ø: 136,5 mm
Position Rear axle wheel hub bearing
With ABS with integrated ABS sensor
Bolts 5 holes
Weight 2.0 kg
Brand SI, PPB, or customized
Packing Neutral, SI, PPB brand packing or customized
OEM/ODM service Yes
Manufacture place ZHangZhoug, China
MOQ 50 PCS
OEM replacement Yes
Inspection 100%
Warranty 1 year or 40,000-50,000 KMS
Certificate ISO9001:2015 TS16949
Payment T/T, PayPal, Alibaba

Detailed pictures:

O.E.:
1K571611
8V571611
8V571611A

Ref.:
F-AG: 
F-AG: 
FEBI BILSTEIN: 26380
FEBI BILSTEIN: 26483
FEBI BILSTEIN: 27163
GSP: 9230082K
OPTIMAL: 157104
OPTIMAL: 157113
S-KF: VKBA 3656
SNR: R154.55

Application:
For AUDI A3 (8P1) (2003/05 – 2012/08)
For AUDI A3 Sportback (8PA)  (2004/09 – 2013/03)
For SEAT ALTEA (5P1) (2004/03 – /)
For SEAT CZPT (1P1) (2005/05 – 2012/12)
For SEAT ALTEA XL (5P5, 5P8) (2006/10 – /)
For VW GOLF V (1K1) (2003/10 – 2009/02)
For VW GOLF PLUS (5M1, 521) (2005/01 – 2013/12)
For VW GOLF VI (5K1) (2008/10 – 2013/11)
For VW JETTA IV (162, 163) (2571/04 – /)
For VW BEETLE (5C1) (2011/04 – /)
For VW BEETLE Convertible (5C7) (2011/12 – /)

Hub Bearing Assembly, front bearing hub replacement, hub and bearing replacement, wheel hub bearings, front wheel bearing hub assembly, front wheel bearing hub replacement, hub bearing assembly front, wheel hub assembly, bearing assembly, Front Wheel Bearing and Hub Assembly, Front Wheel Drive Hub and Bearing Assembly, Front Axle Bearing & Hub Assembly, Front Bearing Hub Assembly, Wheel Bearing Hub

Packing and Delivery:

Work shop:

Exhibitions:

FAQ:
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.

 

Worm Gear Motors

Worm gear motors are often preferred for quieter operation because of the smooth sliding motion of the worm shaft. Unlike gear motors with teeth, which may click as the worm turns, worm gear motors can be installed in a quiet area. In this article, we will talk about the CZPT whirling process and the various types of worms available. We’ll also discuss the benefits of worm gear motors and worm wheel.
worm shaft

worm gear

In the case of a worm gear, the axial pitch of the ring pinion of the corresponding revolving worm is equal to the circular pitch of the mating revolving pinion of the worm gear. A worm with 1 start is known as a worm with a lead. This leads to a smaller worm wheel. Worms can work in tight spaces because of their small profile.
Generally, a worm gear has high efficiency, but there are a few disadvantages. Worm gears are not recommended for high-heat applications because of their high level of rubbing. A full-fluid lubricant film and the low wear level of the gear reduce friction and wear. Worm gears also have a lower wear rate than a standard gear. The worm shaft and worm gear is also more efficient than a standard gear.
The worm gear shaft is cradled within a self-aligning bearing block that is attached to the gearbox casing. The eccentric housing has radial bearings on both ends, enabling it to engage with the worm gear wheel. The drive is transferred to the worm gear shaft through bevel gears 13A, 1 fixed at the ends of the worm gear shaft and the other in the center of the cross-shaft.

worm wheel

In a worm gearbox, the pinion or worm gear is centered between a geared cylinder and a worm shaft. The worm gear shaft is supported at either end by a radial thrust bearing. A gearbox’s cross-shaft is fixed to a suitable drive means and pivotally attached to the worm wheel. The input drive is transferred to the worm gear shaft 10 through bevel gears 13A, 1 of which is fixed to the end of the worm gear shaft and the other at the centre of the cross-shaft.
Worms and worm wheels are available in several materials. The worm wheel is made of bronze alloy, aluminum, or steel. Aluminum bronze worm wheels are a good choice for high-speed applications. Cast iron worm wheels are cheap and suitable for light loads. MC nylon worm wheels are highly wear-resistant and machinable. Aluminum bronze worm wheels are available and are good for applications with severe wear conditions.
When designing a worm wheel, it is vital to determine the correct lubricant for the worm shaft and a corresponding worm wheel. A suitable lubricant should have a kinematic viscosity of 300 mm2/s and be used for worm wheel sleeve bearings. The worm wheel and worm shaft should be properly lubricated to ensure their longevity.

Multi-start worms

A multi-start worm gear screw jack combines the benefits of multiple starts with linear output speeds. The multi-start worm shaft reduces the effects of single start worms and large ratio gears. Both types of worm gears have a reversible worm that can be reversed or stopped by hand, depending on the application. The worm gear’s self-locking ability depends on the lead angle, pressure angle, and friction coefficient.
A single-start worm has a single thread running the length of its shaft. The worm advances 1 tooth per revolution. A multi-start worm has multiple threads in each of its threads. The gear reduction on a multi-start worm is equal to the number of teeth on the gear minus the number of starts on the worm shaft. In general, a multi-start worm has 2 or 3 threads.
Worm gears can be quieter than other types of gears because the worm shaft glides rather than clicking. This makes them an excellent choice for applications where noise is a concern. Worm gears can be made of softer material, making them more noise-tolerant. In addition, they can withstand shock loads. Compared to gears with toothed teeth, worm gears have a lower noise and vibration rate.
worm shaft

CZPT whirling process

The CZPT whirling process for worm shafts raises the bar for precision gear machining in small to medium production volumes. The CZPT whirling process reduces thread rolling, increases worm quality, and offers reduced cycle times. The CZPT LWN-90 whirling machine features a steel bed, programmable force tailstock, and five-axis interpolation for increased accuracy and quality.
Its 4,000-rpm, 5-kW whirling spindle produces worms and various types of screws. Its outer diameters are up to 2.5 inches, while its length is up to 20 inches. Its dry-cutting process uses a vortex tube to deliver chilled compressed air to the cutting point. Oil is also added to the mixture. The worm shafts produced are free of undercuts, reducing the amount of machining required.
Induction hardening is a process that takes advantage of the whirling process. The induction hardening process utilizes alternating current (AC) to cause eddy currents in metallic objects. The higher the frequency, the higher the surface temperature. The electrical frequency is monitored through sensors to prevent overheating. Induction heating is programmable so that only certain parts of the worm shaft will harden.

Common tangent at an arbitrary point on both surfaces of the worm wheel

A worm gear consists of 2 helical segments with a helix angle equal to 90 degrees. This shape allows the worm to rotate with more than 1 tooth per rotation. A worm’s helix angle is usually close to 90 degrees and the body length is fairly long in the axial direction. A worm gear with a lead angle g has similar properties as a screw gear with a helix angle of 90 degrees.
The axial cross section of a worm gear is not conventionally trapezoidal. Instead, the linear part of the oblique side is replaced by cycloid curves. These curves have a common tangent near the pitch line. The worm wheel is then formed by gear cutting, resulting in a gear with 2 meshing surfaces. This worm gear can rotate at high speeds and still operate quietly.
A worm wheel with a cycloid pitch is a more efficient worm gear. It reduces friction between the worm and the gear, resulting in greater durability, improved operating efficiency, and reduced noise. This pitch line also helps the worm wheel engage more evenly and smoothly. Moreover, it prevents interference with their appearance. It also makes worm wheel and gear engagement smoother.
worm shaft

Calculation of worm shaft deflection

There are several methods for calculating worm shaft deflection, and each method has its own set of disadvantages. These commonly used methods provide good approximations but are inadequate for determining the actual worm shaft deflection. For example, these methods do not account for the geometric modifications to the worm, such as its helical winding of teeth. Furthermore, they overestimate the stiffening effect of the gearing. Hence, efficient thin worm shaft designs require other approaches.
Fortunately, several methods exist to determine the maximum worm shaft deflection. These methods use the finite element method, and include boundary conditions and parameter calculations. Here, we look at a couple of methods. The first method, DIN 3996, calculates the maximum worm shaft deflection based on the test results, while the second one, AGMA 6022, uses the root diameter of the worm as the equivalent bending diameter.
The second method focuses on the basic parameters of worm gearing. We’ll take a closer look at each. We’ll examine worm gearing teeth and the geometric factors that influence them. Commonly, the range of worm gearing teeth is 1 to four, but it can be as large as twelve. Choosing the teeth should depend on optimization requirements, including efficiency and weight. For example, if a worm gearing needs to be smaller than the previous model, then a small number of teeth will suffice.

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