Tag Archives: roller for tractor

China manufacturer Excavator Dozer Lower Track Roller for Caterpillar D7 D7h D7r Tractor Undercarriage Parts with Free Design Custom

Product Description

 

Product Description

Material:40 CR or 50Mn
Surface hardness:HRC 50-58, depth 4-10 mm 
Colors:Black or yellow
Technique: Forging /casting
Warranty time:2000 working hours
Certification:ISO9001/14001
Delivery Time:Within 30 days after contract established
Package: standard export wooden pallet
Place of origin:ZheJiang , China
MOQ:2 pieces
 

Detailed Photos

 

Product Parameters

EXCAVATOR              
               
K O M  A T S U               
PC20-7 PC30 PC30-3 PC30-5 PC30-6 PC40-7 PC45 PC45-2 PC55
PC120-6 PC130 PC130-7 PC200 PC200-1 PC200-3 PC200-5 PC200-6 PC200-7
PC200-8 PC202B PC210-6 PC220-1 PC220-3 PC220-6 PC220-7 PC220-8 PC220LC-6
PC220LC-8 PC240 PC270-7 PC300 PC300-3 PC300-5 PC300-6 PC300-7 PC300-7K
PC300LC-7 PC350-6/7 PC400 PC400-3 PC400-5 PC400-6 PC400LC-7 PC450-6 PC450-7
PC600 PC650 PC750 PC800 PC1100 PC1250 PC2000    
                 
HITACHI              
EX40-1 EX40-2 EX55 EX60 EX60-2 EX60-3 EX60-5 EX70 EX75
EX100 EX110 EX120 EX120-1 EX120-2 EX120-3 EX120-5 EX130-1 EX200-1
EX200-2 EX200-3 EX200-5 EX220-3 EX220-5 EX270 EX300 EX300-1 EX300-2
EX300-3 EX300-5 EX300A EX330 EX370 EX400-1 EX400-2 EX400-3 EX400-5
EX450 ZAX30 ZAX55 ZAX200 ZAX200-2 ZAX330 ZAX450-1 ZAX450-3 ZAX450-5
ZX30 ZX50 ZX110 ZX120 ZX200 ZX200-1 ZX200-3 ZX200-5G ZX200LC-3
ZX210 ZX210-3 ZX210-5 ZX210-3 ZX210-5 ZX225 ZX240 ZX250 ZX270
ZX330 ZX350 ZX330C ZX450          
                 
CATERPILLER              
E70 E120 E120-1 E140 E200B E200-5 E215 E240 E300B
E300L E311 E312B E320 E320BL E320D E320DL E320S E322B
E322C E324 E324D E324DL E325 E325L E329DL E330 E330C
E345 E450 CAT225 CAT245 CAT312B CAT315 CAT320 CAT320C CAT320BL
CAT320L CAT322 CAT325 CAT330 CAT973         
                 
SUMITOMO              
SH60  SH120  SH120-3 SH200 SH210-5 SH220-3 SH220-5/7 SH260 SH280
SH290-3 SH290-7 SH300 SH300-3 SH300-5 SH350 SH350-5/7 SH430  
                 
KOBELCO              
SK30-6 SK60 SK100 SK120-5 SK120-6 SK200  SK200-3 SK200-5/6 SK200-6
SK200-8 SK210-8 SK210LC-8 SK220 SK220-1 SK220-3 SK220-5/6 SK230 SK235SR
SK250 SK250-8 SK260LC-8 SK290 SK300 SK300-2 SK300-4 SK310 SK320
SK330-8 SK330 SK350LC-8 SK450 SK480        
                 
DAEWOO              
DH55 DH80 DH130 DH200 DH220 DH220-3 DH220S DH225 DH258
DH280-2 DH280-3 DH370 DH500 DH450        
                 
HYUNDAI              
R60-5 R60-7 R80-7 R200 R200-3 R210 R210-9  R210LC R210LC-7
R225 R225-3 R225-7 R250  R250-7 R290 R290LC R290LC-7 R320
R360 R954              
                 
KATO              
HD250SE HD400SE HD512 HD 512III HD550SE HD700VII HD 820III HD820R HD 1250VII
HD1430 HD1430III HD1880            
                 
DOOSAN              
DX225  DX225LCA DX258 DX300 DX300LCA DX420 DX430    
                 
VOLVO              
EC55 EC140 EC140B EC160B EC160C EC160D EC180B EC180C EC180D
EC210 EC210B EC240 EC240B EC290 EC290B EC360 EC360B EC380D
EC460 EC460B EC460C EC700          

 

BULLDOZER              
                 
CATER PILLER              
                 
D3 D3C D4 D4D D4H D5H D5M D6 D6D
D6M D6R D6T D7 D7H D7R D8 D8N D8R
D9G D9N D9R D10          
                 
K O M A T S U              
D20  D31 D50 D60 D61 D61PX D64P-12 D65A D65P
D80 D85 D155 D275 D355        

 

Company Profile

Annlite (HangZhou) Limited is manufacturing and trader combo company. We specialized in production of undercarriage parts for excavators. With over 30,000 square meters of factory and warehouse space in HangZhou,CHINA.

 

Our Advantages

ANNLITE’s 5 promises
1 On-time delivery
Downtime means a loss of money, so short delivery times are vital. Having maximum control over the production means that we manage the entire supply chain so that we can meet agreed delivery times.
2 Online support
Our dealer support portal gives you an overview of the full range, including price and stock level. You can search the product catalogue in a variety of ways, such as dimensions, machine, item number of the riginal part or order history. You will always quickly find the parts that your client is looking for, including product information and dimensions.
3  Guaranteed quality
Robust, reliable, durable. We supplies products which offer excellent value for money. We are only CZPT to live up to this because we fully control the quality of our products. Our in-house R&D department is constantly improving our quality checks. It also continues to develop the products together with our regular partners. In doing this, we make systematic use of feedback from the field.
4   Complete range
Our parts are available for all popular makes and machines. Our complete range of products means that you can always meet your client’s requests. We also keep the various undercarriage parts in stock. In this way, you can provide a full-service solution to your clients by offering them one-stop shopping.
5  A man of his word
Our final promise to our customers is perhaps the most important. We always keep our word. This means that we ensure that you can fulfill your promise to your clients. You can depend on our delivery times, our
products are always reliable and you can trust on our quality.
 

FAQ

Q: Are you trading company or manufacturer ?
A: We are an industry and trade integration business,our factory located in HangZhou,China.

Q: How long is your delivery time?
A: Generally it is 7 days if the goods are in stock. or it is 15-30 days if not in stock. If it is customized,it will be confirmed according to order.

Q: How can I be sure the part will fit my machinery?
A: A great deal of this comes down to the info you give us when ordering. Pls try to give us as much of the following info as possible: – Correct model number- part number – Any numbers on the part itself – Any measurements you are CZPT to get.Or just give us drawing.

Q: What is your terms of payment ?
A: T/T,L/C,Paypal,Western Union etc.

Q: Can clients customize the goods
A: Yes,we can design and produce the goods according to customer’s request.
 

How to Calculate the Diameter of a Worm Gear

worm shaft
In this article, we will discuss the characteristics of the Duplex, Single-throated, and Undercut worm gears and the analysis of worm shaft deflection. Besides that, we will explore how the diameter of a worm gear is calculated. If you have any doubt about the function of a worm gear, you can refer to the table below. Also, keep in mind that a worm gear has several important parameters which determine its working.

Duplex worm gear

A duplex worm gear set is distinguished by its ability to maintain precise angles and high gear ratios. The backlash of the gearing can be readjusted several times. The axial position of the worm shaft can be determined by adjusting screws on the housing cover. This feature allows for low backlash engagement of the worm tooth pitch with the worm gear. This feature is especially beneficial when backlash is a critical factor when selecting gears.
The standard worm gear shaft requires less lubrication than its dual counterpart. Worm gears are difficult to lubricate because they are sliding rather than rotating. They also have fewer moving parts and fewer points of failure. The disadvantage of a worm gear is that you cannot reverse the direction of power due to friction between the worm and the wheel. Because of this, they are best used in machines that operate at low speeds.
Worm wheels have teeth that form a helix. This helix produces axial thrust forces, depending on the hand of the helix and the direction of rotation. To handle these forces, the worms should be mounted securely using dowel pins, step shafts, and dowel pins. To prevent the worm from shifting, the worm wheel axis must be aligned with the center of the worm wheel’s face width.
The backlash of the CZPT duplex worm gear is adjustable. By shifting the worm axially, the section of the worm with the desired tooth thickness is in contact with the wheel. As a result, the backlash is adjustable. Worm gears are an excellent choice for rotary tables, high-precision reversing applications, and ultra-low-backlash gearboxes. Axial shift backlash is a major advantage of duplex worm gears, and this feature translates into a simple and fast assembly process.
When choosing a gear set, the size and lubrication process will be crucial. If you’re not careful, you might end up with a damaged gear or 1 with improper backlash. Luckily, there are some simple ways to maintain the proper tooth contact and backlash of your worm gears, ensuring long-term reliability and performance. As with any gear set, proper lubrication will ensure your worm gears last for years to come.
worm shaft

Single-throated worm gear

Worm gears mesh by sliding and rolling motions, but sliding contact dominates at high reduction ratios. Worm gears’ efficiency is limited by the friction and heat generated during sliding, so lubrication is necessary to maintain optimal efficiency. The worm and gear are usually made of dissimilar metals, such as phosphor-bronze or hardened steel. MC nylon, a synthetic engineering plastic, is often used for the shaft.
Worm gears are highly efficient in transmission of power and are adaptable to various types of machinery and devices. Their low output speed and high torque make them a popular choice for power transmission. A single-throated worm gear is easy to assemble and lock. A double-throated worm gear requires 2 shafts, 1 for each worm gear. Both styles are efficient in high-torque applications.
Worm gears are widely used in power transmission applications because of their low speed and compact design. A numerical model was developed to calculate the quasi-static load sharing between gears and mating surfaces. The influence coefficient method allows fast computing of the deformation of the gear surface and local contact of the mating surfaces. The resultant analysis shows that a single-throated worm gear can reduce the amount of energy required to drive an electric motor.
In addition to the wear caused by friction, a worm wheel can experience additional wear. Because the worm wheel is softer than the worm, most of the wear occurs on the wheel. In fact, the number of teeth on a worm wheel should not match its thread count. A single-throated worm gear shaft can increase the efficiency of a machine by as much as 35%. In addition, it can lower the cost of running.
A worm gear is used when the diametrical pitch of the worm wheel and worm gear are the same. If the diametrical pitch of both gears is the same, the 2 worms will mesh properly. In addition, the worm wheel and worm will be attached to each other with a set screw. This screw is inserted into the hub and then secured with a locknut.

Undercut worm gear

Undercut worm gears have a cylindrical shaft, and their teeth are shaped in an evolution-like pattern. Worms are made of a hardened cemented metal, 16MnCr5. The number of gear teeth is determined by the pressure angle at the zero gearing correction. The teeth are convex in normal and centre-line sections. The diameter of the worm is determined by the worm’s tangential profile, d1. Undercut worm gears are used when the number of teeth in the cylinder is large, and when the shaft is rigid enough to resist excessive load.
The center-line distance of the worm gears is the distance from the worm centre to the outer diameter. This distance affects the worm’s deflection and its safety. Enter a specific value for the bearing distance. Then, the software proposes a range of suitable solutions based on the number of teeth and the module. The table of solutions contains various options, and the selected variant is transferred to the main calculation.
A pressure-angle-angle-compensated worm can be manufactured using single-pointed lathe tools or end mills. The worm’s diameter and depth are influenced by the cutter used. In addition, the diameter of the grinding wheel determines the profile of the worm. If the worm is cut too deep, it will result in undercutting. Despite the undercutting risk, the design of worm gearing is flexible and allows considerable freedom.
The reduction ratio of a worm gear is massive. With only a little effort, the worm gear can significantly reduce speed and torque. In contrast, conventional gear sets need to make multiple reductions to get the same reduction level. Worm gears also have several disadvantages. Worm gears can’t reverse the direction of power because the friction between the worm and the wheel makes this impossible. The worm gear can’t reverse the direction of power, but the worm moves from 1 direction to another.
The process of undercutting is closely related to the profile of the worm. The worm’s profile will vary depending on the worm diameter, lead angle, and grinding wheel diameter. The worm’s profile will change if the generating process has removed material from the tooth base. A small undercut reduces tooth strength and reduces contact. For smaller gears, a minimum of 14-1/2degPA gears should be used.
worm shaft

Analysis of worm shaft deflection

To analyze the worm shaft deflection, we first derived its maximum deflection value. The deflection is calculated using the Euler-Bernoulli method and Timoshenko shear deformation. Then, we calculated the moment of inertia and the area of the transverse section using CAD software. In our analysis, we used the results of the test to compare the resulting parameters with the theoretical ones.
We can use the resulting centre-line distance and worm gear tooth profiles to calculate the required worm deflection. Using these values, we can use the worm gear deflection analysis to ensure the correct bearing size and worm gear teeth. Once we have these values, we can transfer them to the main calculation. Then, we can calculate the worm deflection and its safety. Then, we enter the values into the appropriate tables, and the resulting solutions are automatically transferred into the main calculation. However, we have to keep in mind that the deflection value will not be considered safe if it is larger than the worm gear’s outer diameter.
We use a four-stage process for investigating worm shaft deflection. We first apply the finite element method to compute the deflection and compare the simulation results with the experimentally tested worm shafts. Finally, we perform parameter studies with 15 worm gear toothings without considering the shaft geometry. This step is the first of 4 stages of the investigation. Once we have calculated the deflection, we can use the simulation results to determine the parameters needed to optimize the design.
Using a calculation system to calculate worm shaft deflection, we can determine the efficiency of worm gears. There are several parameters to optimize gearing efficiency, including material and geometry, and lubricant. In addition, we can reduce the bearing losses, which are caused by bearing failures. We can also identify the supporting method for the worm shafts in the options menu. The theoretical section provides further information.

China manufacturer Excavator Dozer Lower Track Roller for Caterpillar D7 D7h D7r Tractor Undercarriage Parts     with Free Design CustomChina manufacturer Excavator Dozer Lower Track Roller for Caterpillar D7 D7h D7r Tractor Undercarriage Parts     with Free Design Custom

China Standard Tractor Engine Spare Parts Aftermarket Fuel Injection Pump Roller for Mazda near me supplier

Product Description

Product Technical Specifications

Plunger-type
Flows: 60 L/h
Currents: 1 – 2 A
Voltage: 12V
Output : 20-30GPH
Fit Hose Size: 5/16″
Mounting Holes: 6.7 cm / 2.64 in
Calibrated Shut-off Pressure: 4 – 7 PSI
1
Standard 5/16” (8mm) Pipe Fittings (which is a standard fitting for other pumps of same specavailable in the market)

100% Brand new and high quality.
Lightweight and small size.
Easy to fit and connect.(2 bolt fixing , 2 wire design.)
Using a plunger-type of  fuel supply way, suction stronger,oil supply more stable
Tubing Interface 8mm Plug in connector

Model: HEP-02A

Installation hole distance :6.7CM
Flows:  70(L/h)
Currents: 1.2A
Voltage: 12V
Pressure : 1 MPA

Output Pressure: 2.5-4PSI

Inlet and Outlet diameter: 8mm

Compatible Electronic Devices:
– All 12 Volt Cars , Trucks , Boats & Generators
– Toyota, Ford, Honda, Mazda, and any other suitable car

Package includes

1x Fuel Pump HEP-02A

Advantage

Research-intensive and innovative

Experienced OEM service made to customer specifications

ISO9001/ISO16949 quality system certified

Compliance with the advanced word standards and requirements

Highest quality in the most cost effective way and prompt delivery

Dedicated customer service and technical support
 

1.What is your MOQ?

Our MOQ for each product is 1000pcs

2.How long is our delivery?

Our delivery time is 45 days after the order is confirmed, we will discuss the delivery process step by step

3.What is your delivery method?

We have good cooperation with International Express such as FedEx, DHL, TNT, UPS etc., and also providing shipping by air
and sea. we will offer the best shipping method for your option.

You also can choose your own shipping agent, and we will contact with your shipping agent to arrange your shipment
accordingly

Different parts of the drive shaft

The driveshaft is the flexible rod that transmits torque between the transmission and the differential. The term drive shaft may also refer to a cardan shaft, a transmission shaft or a propeller shaft. Parts of the drive shaft are varied and include:
The driveshaft is a flexible rod that transmits torque from the transmission to the differential

When the driveshaft in your car starts to fail, you should seek professional help as soon as possible to fix the problem. A damaged driveshaft can often be heard. This noise sounds like “tak tak” and is usually more pronounced during sharp turns. However, if you can’t hear the noise while driving, you can check the condition of the car yourself.
The drive shaft is an important part of the automobile transmission system. It transfers torque from the transmission to the differential, which then transfers it to the wheels. The system is complex, but still critical to the proper functioning of the car. It is the flexible rod that connects all other parts of the drivetrain. The driveshaft is the most important part of the drivetrain, and understanding its function will make it easier for you to properly maintain your car.
Driveshafts are used in different vehicles, including front-wheel drive, four-wheel drive, and front-engine rear-wheel drive. Drive shafts are also used in motorcycles, locomotives and ships. Common front-engine, rear-wheel drive vehicle configurations are shown below. The type of tube used depends on the size, speed and strength of the drive shaft.
The output shaft is also supported by the output link, which has 2 identical supports. The upper part of the drive module supports a large tapered roller bearing, while the opposite flange end is supported by a parallel roller bearing. This ensures that the torque transfer between the differentials is efficient. If you want to learn more about car differentials, read this article.
air-compressor

It is also known as cardan shaft, propeller shaft or drive shaft

A propshaft or propshaft is a mechanical component that transmits rotation or torque from an engine or transmission to the front or rear wheels of a vehicle. Because the axes are not directly connected to each other, it must allow relative motion. Because of its role in propelling the vehicle, it is important to understand the components of the driveshaft. Here are some common types.
Isokinetic Joint: This type of joint guarantees that the output speed is the same as the input speed. To achieve this, it must be mounted back-to-back on a plane that bisects the drive angle. Then mount the 2 gimbal joints back-to-back and adjust their relative positions so that the velocity changes at 1 joint are offset by the other joint.
Driveshaft: The driveshaft is the transverse shaft that transmits power to the front wheels. Driveshaft: The driveshaft connects the rear differential to the transmission. The shaft is part of a drive shaft assembly that includes a drive shaft, a slip joint, and a universal joint. This shaft provides rotational torque to the drive shaft.
Dual Cardan Joints: This type of driveshaft uses 2 cardan joints mounted back-to-back. The center yoke replaces the intermediate shaft. For the duplex universal joint to work properly, the angle between the input shaft and the output shaft must be equal. Once aligned, the 2 axes will operate as CV joints. An improved version of the dual gimbal is the Thompson coupling, which offers slightly more efficiency at the cost of added complexity.
air-compressor

It transmits torque at different angles between driveline components

A vehicle’s driveline consists of various components that transmit power from the engine to the wheels. This includes axles, propshafts, CV joints and differentials. Together, these components transmit torque at different angles between driveline components. A car’s powertrain can only function properly if all its components work in harmony. Without these components, power from the engine would stop at the transmission, which is not the case with a car.
The CV driveshaft design provides smoother operation at higher operating angles and extends differential and transfer case life. The assembly’s central pivot point intersects the joint angle and transmits smooth rotational power and surface speed through the drivetrain. In some cases, the C.V. “U” connector. Drive shafts are not the best choice because the joint angles of the “U” joints are often substantially unequal and can cause torsional vibration.
Driveshafts also have different names, including driveshafts. A car’s driveshaft transfers torque from the transmission to the differential, which is then distributed to other driveline components. A power take-off (PTO) shaft is similar to a prop shaft. They transmit mechanical power to connected components. They are critical to the performance of any car. If any of these components are damaged, the entire drivetrain will not function properly.
A car’s powertrain can be complex and difficult to maintain. Adding vibration to the drivetrain can cause premature wear and shorten overall life. This driveshaft tip focuses on driveshaft assembly, operation, and maintenance, and how to troubleshoot any problems that may arise. Adding proper solutions to pain points can extend the life of the driveshaft. If you’re in the market for a new or used car, be sure to read this article.

it consists of several parts

“It consists of several parts” is 1 of 7 small prints. This word consists of 10 letters and is 1 of the hardest words to say. However, it can be explained simply by comparing it to a cow’s kidney. The cocoa bean has several parts, and the inside of the cocoa bean before bursting has distinct lines. This article will discuss the different parts of the cocoa bean and provide a fun way to learn more about the word.
air-compressor

Replacement is expensive

Replacing a car’s driveshaft can be an expensive affair, and it’s not the only part that needs servicing. A damaged drive shaft can also cause other problems. This is why getting estimates from different repair shops is essential. Often, a simple repair is cheaper than replacing the entire unit. Listed below are some tips for saving money when replacing a driveshaft. Listed below are some of the costs associated with repairs:
First, learn how to determine if your vehicle needs a driveshaft replacement. Damaged driveshaft components can cause intermittent or lack of power. Additionally, improperly installed or assembled driveshaft components can cause problems with the daily operation of the car. Whenever you suspect that your car needs a driveshaft repair, seek professional advice. A professional mechanic will have the knowledge and experience needed to properly solve the problem.
Second, know which parts need servicing. Check the u-joint bushing. They should be free of crumbs and not cracked. Also, check the center support bearing. If this part is damaged, the entire drive shaft needs to be replaced. Finally, know which parts to replace. The maintenance cost of the drive shaft is significantly lower than the maintenance cost. Finally, determine if the repaired driveshaft is suitable for your vehicle.
If you suspect your driveshaft needs service, make an appointment with a repair shop as soon as possible. If you are experiencing vibration and rough riding, driveshaft repairs may be the best way to prevent costly repairs in the future. Also, if your car is experiencing unusual noise and vibration, a driveshaft repair may be a quick and easy solution. If you don’t know how to diagnose a problem with your car, you can take it to a mechanic for an appointment and a quote.

China Standard Tractor Engine Spare Parts Aftermarket Fuel Injection Pump Roller for Mazda     near me supplier China Standard Tractor Engine Spare Parts Aftermarket Fuel Injection Pump Roller for Mazda     near me supplier

China factory Bearing China Bearing Factory Tractor Bearing 32009X Tapered Roller Bearing for Agricultural Machinery Parts near me factory

Product Description

Bearing China bearing factory Tractor bearing 32009X Tapered Roller Bearing for agricultural machinery parts

Tapered roller bearing parameters:
 

  Product Name   Tapered roller bearing
    Product Model    32009X
    Material     Chrome steel  
    Brand     R&Z or OEM             
    Package     A. Tube package + outer carton + pallets
    B. Single box + outer carton + pallets
    C. Tube package + middle box + outer carton + pallets
    Sample     Available     
    Type     Open/ RS/ 2RS/ Z/ 2Z/ N/ NR
    Cage     Steel cages   
    Payment     A. T/T
    B. Western union
    C. Paypal     
    D. L/C                            
    Delivery Time     3-10 working days

Specification:
 

Bearing No. Dimensions(mm) Weight Bearing No. Dimensions(mm) Weight
  d D T kg   d D T kg
35712 15 35 11 0.053 30302 15 42 13 0.098
35713 17 40 13.25 0.079 30303 17 47 15.25 0.129
35714 20 47 15.25 0.126 30304 20 52 16.25 0.165
35715 25 52 16.25 0.154 30305 25 62 18.25 0.263
35716 30 62 17.25 0.231 30306 30 72 20.75 0.387
35717 35 72 18.25 0.331 30307 35 80 22.75 0.515
35718 40 80 19.75 0.422 30308 40 90 25.25 0.747
35719 45 85 20.75 0.474 30309 45 100 27.25 0.984
35710 50 90 21.75 0.529 3571 50 110 29.25 1.28
35711 55 100 22.75 0.713 3571 55 120 31.5 1.63
35712 60 110 23.75 0.904 3571 60 130 33.5 1.99
35713 65 120 24.75 1.13 3571 65 140 36 2.44
35714 70 125 26.25 1.26 3571 70 150 38 2.98
35715 75 130 27.25 1.36 3571 75 160 40 3.57

 

Bearing No. Dimensions(mm) Weight Bearing No. Dimensions(mm) Weight
  d D T KG   d D T KG
32203 17 40 17.25 0.102 32304 20 52 22.25 0.23
32204 20 47 19.25 0.16 32305 25 62 25.25 0.368
32205 25 52 19.25 0.187 32306 30 72 28.75 0.562
32206 30 62 21.25 0.287 32307 35 80 32.75 0.763
32207 35 72 24.25 0.445 32308 40 90 35.25 1.04
32208 40 80 24.75 0.532 32309 45 100 38.25 1.4
32209 45 85 24.75 0.573 32310 50 110 42.25 1.89
32210 50 90 24.75 0.626 32311 55 120 45.5 2.37
32211 55 100 26.75 0.853 32312 60 130 48.5 2.9
32212 60 110 29.75 1.17 32313 65 140 51 3.51
32213 65 120 32.75 1.55 32314 70 150 54 4.34
32214 70 125 33.25 1.64 32315 75 160 58 5.37
32215 75 130 33.25 1.74 32316 80 170 61.5 6.38

 

Bearing No. Dimensions(mm) Weight Bearing No. Dimensions(mm) Weight
  d D T KG   d D T KG
32004X 20 42 15 0.095 33005 25 47 17 0.129
32005X 25 47 15 0.11 33006 30 55 20 0.201
32006X 30 55 17 0.17 33007 35 62 21 0.25
32007X 35 62 18 0.224 33008 40 68 22 0.306
32008X 40 68 19 0.267 33009 45 75 24 0.398
32009X 45 75 20 0.337 33571 50 80 24 0.433
32571X 50 80 20 0.366 33011 55 90 27 0.651
32011X 55 90 23 0.551 33012 60 95 27 0.691
32012X 60 95 23 0.584 33013 65 100 27 0.732
32013X 65 100 23 0.62 33014 70 110 31 1.07
32014X 70 110 25 0.839 33015 75 115 31 1.12
32015X 75 115 25 0.872 33016 80 125 36 1.63

Tapered roller bearing components:

R&Z tapered roller bearing advantages:

Tapered roller bearing is widely used in mechanical equipment, hydro power, engineering, railway, automobile, steel, electric power, textile, packaging, medical, metallurgy, mining, petroleum, electric power, paper making, electronic computer, motor, sports equipment, office equipment, instrumentation, automobile motor, fine
dense instruments and other fields.

Application:

Motors, household appliances, agricultural machinery, construction machinery, construction machinery, roller skates, paper machinery, reduction gears, railway vehicles, crushers, printing machinery, woodworking machinery, automobiles, metallurgy, rolling mills, mining
 

Our package

* Industrial package+outer carton+pallets
* single box+outer carton+pallets
* Tube package+middle box+outer carton+pallets
* According to your requirements

FAQ:

SAMPLES
1.Samples quantity: 1-10 pcs are available.
2.Free samples: It depends on the model NO., material and quantity. Some of the bearings samples need client to pay
samples charge and shipping cost.

CUSTOMIZED
The customized LOGO or drawing is acceptable for us.

MOQ
1.MOQ: 10 pcs mix different standard bearings.
2.MOQ:  2000 pcs customized your brand bearings.

OEM POLICY
1.We can printing our brand (logo,artwork) on the shield or make your own brand on the shield.
2.We can custom your packaging according to your design

 

Screw Shaft Types

If you’re looking for a screw shaft, but aren’t sure which type to buy, you’re in luck. In this article, we’ll talk about the different types, including Threaded shank, Round head, and Machined. Once you’ve read it, you’ll know which type to buy. Then, you can decide whether you want a ball screw nut or a threaded shank.

Machined screw shafts

Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find 1 to fit your needs. And since each size requires a different material, your choice of material is important as well.
In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.
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Ball screw nuts

If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft’s grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
When selecting ball screw nuts, it’s important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the 2 ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These 2 features ensure that the ball and the nut meet at 2 points. You’ll be amazed by the results of the work of these ball screw nuts.
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Threaded shank

Wood screws are usually not fully threaded because the shank has an unthreaded portion at the top. This shoulder part forces the screw to compress 2 pieces of wood, which prevents the screw from overheating and compromising the materials strength. As the screw is threaded partially up, it is not as difficult to remove as a fully threaded screw. However, it is important to note that a wood screw will not hold as tightly as 1 with a fully threaded shank.
In addition to being universal, screw threads can be of different sizes. For example, a M8 screw has a thread pitch of 1.25 mm. To avoid confusion, screw thread pitches are commonly given with a multiplication sign. For example, M8x1 means that the screw is 8 mm in diameter but has a thread pitch of 1 mm per 360-degree rotation. Those who are not familiar with these dimensions may find it confusing.
The OD of the threaded portion of a bolt is generally smaller than the OD of the nut. If the shank is too deep for the nut to fit, the threads may bottom out. This is why it’s important to use a thread-cutting bit with a small thread diameter. You can use a micrometer or caliper to measure the thread diameter. This tool will also allow you to easily identify which screw size fits where and how well.
The metric system is the most widely used. Fasteners with DIN numbers are generally metric in size. This makes them very useful for industrial settings. You can find metric-sized screws anywhere, as long as you buy them from a reputable manufacturer. These fasteners also come with a dog point, which is used for safety wire. If the screw needs to be replaced, the shank can be drilled with a hole for a safety wire or for a dog-point.

Round head

A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to 1 mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.
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Self-locking mechanism

A self-locking mechanism for a screw shaft is a device that secures the screw to its supporting member in a failure position. The locking mechanism provides a positive connection between the screw shaft and the control surface during normal operation, and locks the screw to its supporting member when the screw fails. Previous attempts to solve this problem have typically used secondary nuts with free play on the screw, which were intentionally designed to jam when loaded. However, such a device can be unreliable, which is why the present invention offers a more robust and reliable locking mechanism.
The self-locking function of a screw depends on several factors, including its pitch angle and the coefficient of friction of the threads. The angle of friction must be less than the tangent of the material pairing to prevent untightening of the screw. Screws with self-locking mechanisms have an efficiency e lower than 50%, which is less than half. Self-locking screws also have the benefit of being less efficient than a standard screw.
Unlike a normal screw, a self-locking screw can be turned in either direction. The nut 22 rotates with the screw shaft, and the member 23 is translated in an axial direction. Regardless of the direction of the rotation of the screw, this axial translation will result in the opposite moment to that input moment. While screw self-locking mechanisms are typically less expensive, they are more reliable and durable.
Another important feature of self-locking screws is that they are not susceptible to independent loosening. The screw cannot rotate without a certain amount of torque. In addition, a self-locking screw shaft must have a small wedge with a smaller half-angle than the arctangent of the static friction. This means that the torque applied by the driver must be greater than the torque needed to overcome the friction.

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