The track roller is one of the traveling mechanism （four kinds of rollers and track shoe assy）on the chassis of track type construction machinery. Its main function is to support the weight of excavator and bulldozer and make the track shoe assy move along the roller. It also can restrict track shoe assy and prevent lateral slippage. The track roller includes single flange and double flange track roller.
The track roller is composed of roller body, roller shaft, shaft sleeve, sealing ring, end cover and other related parts.
Bulldozer track roller surface is generally yellow paint.
Material and technology
The roller body material of track roller is generally 50Mn, 40Mn2 or other materials. The main process is casting or forging, mechanical processing, and then heat treatment. The hardness of the roller surface after quenching should reach HRC45~52, so as to increase the wear resistance of the roller surface.
The machining precision of support roller shaft requires high, which generally need CNC machine tools. 40Mn2 is in the majority with the material of track roller, after processing, it also needed to carry out quenching heat treatment, hardness up to HRC42.
Problems and analysis
A. Roller body wear. It is attributed to unqualified steel or the hardness of the material during heat treatment is low and the wear resistance is insufficient;
B. Oil leakage. The roller shaft shall be keep rotating, the roller body needs to be lubricated. However, if the sealing ring is not qualified, it is easy to produce oil leakage. Therefore, it is easy to wear between the shaft and the shaft sleeve without lubrication, which makes the product unable to be used.
The reasons for oil leakage are as follows: 1 floating oil seal unqualified 2. Sleeve roundness is not enough 3. Shaft gloss is not enough 4. Gear oil is not up to standard 5. Machining dimensional tolerance .These problems will cause the track roller oil leakage.
Place of Origin:
Jining Shandong China
Double flange track roller for support track shoe assy
Bulldozer double flange track roller
Delivery Date :
Within 15 days after signing the contract
Q1: How long is the delivery time of track roller?
A1: We have a large amount of stock in stock. We can deliver the goods as soon as possible.Within 15 days after signing the contract.
Q2: Which mode of transportation is supported?
A2: We own a comprehensive transportation system that supports shipping containers, rail containers and automobile transportation.
Q3: Can I have a sample before placing a mass order?
A3: Yes, we can offer you a sample to test our quality.
Q4: How can I ensure the product will fit my excavator?
A4: Please offer us correct model number/machine serial number/part number. Just one of them is OK.
Q5: What about Quality Control?
A5: We have a perfect QC system for the perfect products. A team who will detect the product quality and specification piece carefully, monitoring every production process until packing is complete, to ensure product safety into container.
Q6: What's your advantage?
A6: (1)Products are reasonably priced and of high quality. (2)We use the best heat treatment techniques in their foundries to assure excellent quality and wear in their parts.
1) World-class quality
2) Factory sale directly with reasonable price
3) 10years' experience in Excavator & Bulldozer spare parts manufacturing
4) Flexible payment terms including T/T,L/C and so on
5) Fast delivery within 30 days after contract established
6) Professional sales team,quality inspection and report, maritime logistics guidance
7) After-sale services:video technical support,24h online support
8) Material: We purchase raw material steel from several large steel groups, make sure our raw material's quality.
9) 20% of our technologist and workers have over 10 years experience in this industry.
10) We have complete production line and a professional designer and working team. We can also produce accroding to your blue print or samples.
11) Quality control: The quality control is strictly performed start from purchaseing raw materials to different machining procession till final packing. We have Magnetic Powder Detector, Material Testing Machine, Metallographic Microscope, such testing instruments, guanrantee our products a high quality.
Are you still troubled by lacking of quality excavator track roller? Yingjian Parts is one of the professional manufacturers and suppliers of excavator track roller in China, who has high quality products for sale. With over 10 years experience and wide expertise, we can assure you the high quality and good performance of our products.