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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 factory Used Bulldozer Crawler Bulldozer Shantui Bulldozer or Tractor Earth-Moving Dozer Blade or Parts for Sale with high quality

Product Description

Product description
Remanufacturing is an important form of resource recycling and belongs to the green intelligent manufacturing industry. In the current background of China’s industrial structure, promoting remanufacturing industry is more conducive to environmental protection and energy conservation. Under the premise of ensuring the same performance as the original new machine, the price of high-end remanufactured products is undoubtedly more attractive! And for that, we have formulated strict production technology standards for remanufacturing bulldozer. We have a complete accessories system and mature preparation and assembly processes. The purpose is to make true deep remanufactured products with industry standards that meet performance requirements. It is different from the fake and inferior refurbished products that only repair the appearance, so that customers can really have a more cost-effective bulldozer!
 

ITEM UNIT SD32
L*W*H (Ripper not included) mm 6880*4130*3725
Operating weight (Ripper not included) t 37.2
Engine NTA855-C360S10
Rated power kW/rpm 235/2000
Gradeability ° 30
Blade type Straight tilt bladeSemi-U bladeAngle blade
Blade width mm Straight tilt blade 4130×1590Semi-U blade 4030×1720Angle blade 5000×1140
Dozing capacity m3 Straight tilt blade 10Semi-U blade 11.9Angle blade 6
Max drop below ground of blade mm 560
Lift height of blade mm 1560
Ripper type Single ripperThree-shank ripper   
Ripping depth of ripper mm Single ripper 1250Three-shank ripper 842                                       
Lifting height of ripper mm Single ripper 955Three-shank ripper 883
Number of carriers (each side) 2
Number of track rollers (each side) 7
Number of track shoes (each side) 41
Width of track shoe mm 560
Track gauge mm 2140
Ground length and ground pressure mm/MPa 3150-0.105     
Pitch mm 228.6
Forward speed km/h 0-3.6
0-6.6
0-11.5
Reverse speed km/h 0-4.4
0-7.8
0-13.5

Manufacturing process
Important part

Our Company

FAQ

1. Who are we?
We are based in ZHangZhoug, China, start from 2571,sell to Africa(30.00%),Southeast Asia(20.00%),Mid East(20.00%),North America(5.00%),Southern Europe(5.00%). There are total about 11-50 people in our office.

2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.What can you buy from us?
excavator,roller,forklift,bulldozer,loader and pare parts.

4. Why should you buy from us not from other suppliers?
Because of reliable.

5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS;
Accepted Payment Currency:USD/RMB
Accepted Payment Type: T/T,L/C and so on.
Language Spoken:English,Chinese,Russian.

Axle Spindle Types and Installation

Are you looking for a new axle spindle for your vehicle? If so, you’ve come to the right place. Learn more about their types, functions, and installation. After reading this article, you’ll be well on your way to finding your new axle spindle. Axle spindles are essential to your vehicle. There are several types and each has unique characteristics. Here’s how to choose the best 1 for your car.

Dimensions

Axle spindle dimensions are crucial for safe wheel support. This component experiences significant stress and load during bearing mounting and must provide sufficient strength. The axle spindle can be hot-forged or shaped to include an integral shoulder. The shape of the bearing stop region must be abruptly transitioned from a straight to a curved configuration. Dimensions of axle spindle vary with different materials, manufacturing techniques, and applications.
The bearing surfaces of the axle spindle are 1.376 inches across, while the bearing spacer is 1.061 inch across. The axle spindle is 1.376 inches long and includes a cotter pin and nut. Typical axle spindle dimensions are listed below. Some axles may have additional components to reduce their weight, while others may not have any. The number of axles and bearings is also important to consider when determining the dimensions of the axle.
The outside shape of the axle spindle 40 is similar to that of the prior art spindle 10. The outer wheel bearing region 44 is cylindrical with a diameter D 1 and an inner wheel bearing region 46. An axially-separating transition region 48 separates the inner bearing region 46 from the outer wheel bearing region 44. It is important to note that the internal diameter is generally slightly larger than the outer wheel bearing region 46.
Axle spindles can be integrally formed or welded to the housing or central beam. They can also be designed differently depending on the intended function. For example, the trailer axle spindle may have a circular or rectangular cross section. Once again, axle spindles are important for safety and longevity, so it is important to know their dimensions. You can also check online for the dimensions of axle spindles.
Driveshaft

Function

Axle spindles are crucial components of a vehicle’s suspension system. They enable a vehicle to move forward, turn, brake, and accelerate. The axle also supports the wheel bearings. In addition to supporting the wheel hub, the axle spindle connects the arms of each wheel to the chassis. This piece is also known as a steering knuckle. The axle spindle’s job is to provide sufficient strength to support the axle.
The functional elements of an axle spindle are cylindrical and have a transition region and an outer surface with an irregular pattern. They have a first and a second diameter, and are shaped to form the spindle’s beam portion and spindle region. The transition region forms a pivotal connection between the axle and the suspension. It also provides the connection between the axle and the trailer. It allows a vehicle to rotate without causing excessive vibrations.
Axle spindles can be circular in structure and are similar to those of the prior art. They support wheel hub configurations. The first end of a spindle is threaded, while the second end is open. The outer wheel bearing region has an outer surface with a diameter D1, while the inner wheel bearing region 46 has a cylindrical outer surface with a diameter D2. The transition region separates the spindle from the rest of the axle.
The spindle nut retains the wheel hub on the spindle, whereas the spindle nut holds the hub assembly in place. A spindle nut retains the wheel on the spindle. A hub cap protects the locking nut assembly and lubrication area. A hub cap is also a common component of the axle. The hub cap also provides a protective shield for the spindle nut.
Steering axle spindles do not extend to the right of the oil seal. They extend from the steering kunckle, which is pivotally joined to the steering axle beam. Despite the differences in bearing seals, wheel hub mounting means, and brake assemblies, the basic spindle configuration is the same. A spindle consists of 2 axially separated bearing regions, 1 with a larger diameter than the other, with a bearing stop adjacent to the inner bearing region.
Driveshaft

Types

The axle is the basic unit of an automobile, and it includes several components. Among these are bearings, axle housings, and wheel hubs. Bearings and axle housings take on all of the radial loads placed on them during operation. As a result, they are necessary to ensure that a vehicle is able to function at its optimum level. But if you’re not sure what these components are, they can make all the difference in your ride.
Axle type depends on a number of factors, including the amount of force produced. In some cases, the vehicle already has pre-designed axles that come in standard formats, but in other cases, a customer can order a custom-made axle for the specific needs of his vehicle. Customized axles give the vehicle operator greater control over the speed and torque of the wheels. To choose the correct axle type for your vehicle, it’s helpful to know the measurements of the axle.
Axle gear sets and lubrication passages are also different. Reverse-cut gears can’t be used in place of standard cut gears, and vice-versa. The 2 types of axle are compatible, but the spline count of the differential case must match that of the axle. It’s important to remember that a different type of axle may work with a different type of machine tool.
Different axle spindle materials have their own advantages and disadvantages. Some are more durable than others, depending on their load capacity. Disc brake hubs and axle spindles are similar to the non-braking ones, but include a rotor and a caliper yoke. The yoke design on the rotor or caliper spindle is specific for each rotor.
Bearing-type axles are the most durable. They transfer the weight of the vehicle to the axle casing. The axle housing is retained by a flange bolted to the hub, and the axle bearings are secured on the spindle by a large nut. Alternatively, axles with bearings are supported solely on the axle spindle and don’t require a hub. Floating axles are typically better for long-term operation, but may be a limited choice for vehicles.
Driveshaft

Installation

Axle spindle installation involves tightening the axle spindle nut to retain the spacer and bearing cones in position. When properly tightened, the axle spindle nut provides the clamp force required to compress the bearing spacer and bearing cone. Preloading is an important part of axle spindle installation because it optimizes bearing life by limiting the tolerance range of end play. Here are some tips on axle spindle installation.
To start the process, you should remove the axle spindle from the vehicle. If the old spindle is not a bolt-on type, a technician will need to cut the weld that holds the axle spindle in place. Then, he or she would need to thread the new spindle back into place. The axle tube must be threaded to accept the new spindle. Once the axle spindle is properly installed, the technician will need to tighten it to the specified torque.
Once the axle spindle is installed, the technician will continue tightening the nut assembly. To ensure a tight grip, the technician will rotate the outer washer while adjusting the torque level on the axle spindle nut. If the nut is not correctly torqued, it may loosen the axle spindle. In addition, improper torque can cause excessive inboard pressure on the outer nut, which can result in over or under-compression of the bearing cone.
The second axle spindle includes an inboard bearing 54 and an outboard bearing 56. The inboard bearing has an inboard surface that abuts the shoulder 26 of the axle spindle. The outboard bearing 57 is mounted on the axle spindle near its outboard end. A bearing spacer 58 is positioned between the inboard and outboard bearings. The spacer and bearing cone group comprises the bearing cones 54 and 56.
Proper alignment of the new spindle is essential for a secure fit. Taking your trailer to a licensed repair facility for a trailer spindle installation is a good idea, as a poorly installed axle can result in improper wheel tracking and premature tire wear. A licensed trailer repair facility can do this for you without much difficulty. This way, you won’t waste your time or frustration on a DIY trailer axle replacement.

China factory Used Bulldozer Crawler Bulldozer Shantui Bulldozer or Tractor Earth-Moving Dozer Blade or Parts for Sale     with high qualityChina factory Used Bulldozer Crawler Bulldozer Shantui Bulldozer or Tractor Earth-Moving Dozer Blade or Parts for Sale     with high quality