• Front idlers use low alloyed boron steels with certified hardenability based on Berco specification (for fabricated versions). 
• Low alloyed cast steel (cast version). 
• Heavy duty ring-rolled tread rims (for fabricated versions). 
• Induction hardened tread diameter. 
• High tread surface hardness (HRC > 50) for reduced wear and longer life. 
• Tempered to resist cracking and chipping. 
• Precise design and manufacturing for proper fit. 
• Easy resurfacing. 
• Idlers can be supplied alone or fully assembled with brackets, adjuster and tension device.

1. Undercarriage parts: track roller(bottom roller, lower roller), top roller(carrier roller, upper roller), idler, sprocket(driving wheel), track link assy and track shoe assy(track chain, track group), tension spring( track adjuster),  U york, track guard, rubber chain(rubber track), etc
2. GET parts: bucket, bucket teeth, teeth adapter, quick coupler, end bit, side cutter, end bit, bucket link, link rod, bucket pin and bushing etc,
3. Hydraulic parts: boom cylinder, arm cylinder, bucket cylinder.
4. Matched parts: bolt&nut, spacer, seal kits, filter and so on.

Xiamen Worthpart Machinery Co., Ltd is a manufacturer and trader specializing in the research, development and production of Undercarriage Parts for Tractor Excavators and Bulldozers. We are located in Xiamen, with convenient transportation access.

With more than 8 years experience on heavy duty machinery spare parts sales, Xiamen worthpart machinery Co., Ltd. is a professional manufacturers and exporters of Track Roller, undercarriage parts for tractor excavators and bulldozers in China.

Our main products are crawl type Undercarriage Parts, including Track roller, Carrier Rollers, Sprocket rims and segments, Front idlers, Track chains, Track groups with shoes, bolts & nuts, pins & bushings.

Quality of our products are high at reasonable prices, certified by ISO9001:2008, specifically designed, engineered and manufactured under consistent quality control. We also make according to OEM requirements. What’s more, we can produce new products according to customers’ supplied samples, designs or technical drawings.