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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.
Contact Us
E-mail :
sales@china-ysm.com
Phone/WhatsApp：
+86-18606961587
Address：
No.8 Binjiang Street, Binjiang Industrial Zone, Xiamei Town, Nan An City, Quanzhou City, Fujian Province, China
Forged Bulldozer Track Roller D85 Bottom Roller Lower Roller Assembly for Komatsu D85 D85A D85E Shantui Undercarriage Parts - YSM
隐藏域元素占位
Product Introduction
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!
Our Advantage
1、Equipment
We have complete production line and testing equipment, including CNC process center,
2、Group
We have our own team to research, design, produce and sell.
3、Quality
We have passed IS0 9001:2005. standard, stable,reliable
4、Price
Our products compare favorably with other traders.
5、History
We are a company combined with R&D, production and sales wholly,
6、Philosophy
With excellent quality, firt-class service, honest business
Custom Process
Helpful information for identifying replacement parts for undercarriage for excavators in
this quick reference guide and for models and manufacturers not listed in this catalog
1. Identify the excavator's full model and serial numbers.
2. Determine the quantity of top and bottom rollers. If you can, find out how big the bottom roller bolt hole is.
3. Count the number of sprocket bolt holes and teeth. If you can, find out how big the bolt hole is.
4. Count the number of links and measure and estimate the original track chain pitch.
5. Calculate and measure the bushing and pin original diameters.
6. Obtain any track links identifying marks, such as the manufacturer and part number.
7. Calculate the bolt hole pattern and the width of the track shoe.
After-Sales
Helpful information for identifying replacement parts for undercarriage for excavators in
this quick reference guide and for models and manufacturers not listed in this catalog
1. Identify the excavator's full model and serial numbers.
2. Determine the quantity of top and bottom rollers. If you can, find out how big the bottom roller bolt hole is.
3. Count the number of sprocket bolt holes and teeth. If you can, find out how big the bolt hole is.
4. Count the number of links and measure and estimate the original track chain pitch.
5. Calculate and measure the bushing and pin original diameters.
6. Obtain any track links identifying marks, such as the manufacturer and part number.
7. Calculate the bolt hole pattern and the width of the track shoe.
Payment
We can accpet payment via TT, LC,DP,DA, WESTERN UNION; Sample order lead time is in 7-10 days, Mass quantity order lead time is 25-30 days; We can provide you professional technical support. And our products quality gurantee is 12 months.
Our Service
-Professional OEM Manufacturer
-Specializing in high quality undercarriage parts for mining area
-With one year or 2000 working hours guarantee
-Quick delivery time
-Exclusive agent accepted
-Same quality with some famous brands
-Unmatched customer service
-Full compliance with European quality standards
-Excellent quality with competitive prices
- Have cooperated with a lot of importers for more than 15 years
You Are Currently Facing The Problem?
Our company creates a professional network for sales and services, extends its reach of services over the globe, sets up an integrated system for pre- during and post sale services.
What Is The Delivery Time?
For The Excavator Parts Nomally We Can Offer Within 30 Days, If For Dozer Partsnomally 45 Days.
What Is The Warranty Of Your Products?
For Normal Use Excavator And Dozer Undercarriage We Offer 1 Year Or 2000 Working Hours
What Is Your Payment Terms?
You Can Choose Tt,Lc,Dp,Da,Western Union.
What Is Your Moq?
Nomally Our Moq Is 3000 Usd.
What Are The Pakages Of Your Products?
We Can Offer Fumigating Wooden Pallets/Boxes,Plywood Pallets/Boxes,Or Cartons
We Can Provide You
1.For The Excavator Parts Nomally We Can Offer Within 30 Days, If For Dozer Partsnomally 45 Days.
2.For Normal Use Excavator And Dozer Undercarriage We Offer 1 Year Or 2000 Working Hours
3.You Can Choose Tt,Lc,Dp,Da,Western Union.
4.Nomally Our Moq Is 3000 Usd.
5.We Can Offer Fumigating Wooden Pallets/Boxes,Plywood Pallets/Boxes,Or Cartons
6.Our Nearest Port Is Xiamen Port China.
7.We Can Offer Certificate Of Original,Form E, Form A Etc.
8.Our Factory Are Located In Quanzhou City, Fujian Province,China
Our Fast Train Station Name Is Quanzhou,Our City Airport Name: Jinjiang Airport
Specialized OEM Services
1. Material
2. Color
3. Size And Shape
4. Logo
6. Packaging
Category:
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