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ApplicationOur products consist of undercarriage parts for bulldozer and excavator such as Track link,Track roller,Carrier roller,Sprocket,ldler,Track shoe,Cutting edge,End bit,Tooth Bucket,Track pin,Track bush, Engine parts,Track boit&nuts.U-bolt,Centre bolt,Wheel bolt and other related parts.
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About UsFujian Yongsheng Machinery Parts Co., Ltd. is located in Quanzhou City, Fujian Province, which is one of the most developed regions of China Machinery Manufacturing.The company was established in 2003, after approximately 10years' effort, and now it is one of the leading construction machinery parts auto parts manufacturers in CHINA.
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BlogSuppliers who pass Quality ManagementSystem Certification, and have onsitematerials or finished products inspected,as certified by independent third parties.
Angola Forged Bulldozer Track Roller D85 Bottom Roller Lower Roller Assembly for Komatsu D85 D85A D85E Shantui Undercarriage Parts - YSM
Category:
Product Description
Heavy Duty Bulldozer Track Roller (Bottom Roller / Lower Roller Assembly) for D85
Fujian Yongsheng Machinery Parts Co., Ltd. (YSM) is a premier undercarriage components source factory based in Quanzhou, China. Our D85 Track Roller series is manufactured in strict accordance with rigorous global OEM standards. Engineered to survive high-abrasion earthmoving, quarrying, and mining environments, it provides seamless structural compatibility and exceptional structural durability for heavy-tracked bulldozers—specifically Komatsu D85 series and Shantui crawlers.
Komatsu D85 Track Roller Technical Specifications
| Parameter / Feature | Specification Details |
|---|---|
| Product Full Names | Bulldozer Track Roller, Crawler Bottom Roller, Heavy Duty Lower Roller Assembly |
| Compatible Machine Models | Komatsu D85, D85A-18, D85A-21, D85E, D85P, D85ESS, Shantui Bulldozers |
| Raw Material | 40Mn2 Original Forged Steel (Ultra-High Structural Density) |
| Heat Treatment Hardness | HRC 50-55 (Optimal Induction Hardened Depth) |
| Welding Standard | Imported Friction Welding Technology from Japan (Flawless Sealing) |
| Bushing Type | Premium Domestic COB Copper Bushing (Anti-Friction) |
| Guaranteed Lifespan | Minimum 2000 Hours / 1-Year Factory Warranty Protection |
Why Procurement Managers Choose YSM Forged D85 Bottom Rollers
- Perfect Dimensional Fitting: Specifically aligned to Komatsu engineering blueprints for the D85 family. Shaft diameters, mounting clearances, and seal groups are strictly calibrated, guaranteeing an effortless field replacement.
- 40Mn2 Forging vs. Cast Steel: While ordinary cast rollers are highly prone to internal air pockets and rapid cracking under high-impact dozing, our 100% forged 40Mn2 body provides the intense density needed to withstand extreme rock impact.
- Advanced Japanese Friction Welding: By utilizing imported friction welding machinery, the shell-to-shaft joints on our lower rollers achieve permanent structural fusion, entirely preventing field oil leakage or body separation.
- Global Aftermarket Track Record: Having years of contract manufacturing experience satisfying the strict quality benchmarks of world-renowned brands like ITR, YSM brings top-tier China factory reliability directly to global parts distributors.
Wholesale & Bulk Undercarriage Supply
As an independent manufacturing plant in China, YSM supports global heavy machinery fleet managers, repair facilities, and aftermarket parts wholesalers with budget-optimized, high-volume undercarriage solutions. We maintain deep inventory for rapid worldwide shipping and accept custom fabrications from your technical drawings. Contact our sales engineering team today to get an instant factory-direct quote on our D85 track roller assembly!
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Andy Shi
No.8 Binjiang Street, Binjiang Industrial Zone, Xiamei Town, Nan An City, Quanzhou City, Fujian Province, China
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