China Digger Undercarriage Parts YC85 Bottom Roller for Yuchai Excavators
Built specifically for Yuchai YC85 excavators, this bottom roller offers reliable track support and smooth movement over rough terrain. Manufactured with wear-resistant steel and sealed for durability, it ensures long service life and optimal undercarriage performance.
| Material | 50Mn/40MnB |
|---|---|
| Surface Hardness | HRC53-58,deepth: 8-12mm |
| Colors | Black or yellow or customized |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
Excavator YC85 Bottom Roller : Function and Performance
The YC85 track roller is a vital component of the undercarriage system, providing essential support for the machine’s track chain. It ensures consistent contact with the ground, balances the load weight of the excavator, and stabilizes track movement during travel and excavation. Especially designed for mid-sized Yuchai machines, this roller enables smooth operations on construction sites, agriculture, and light demolition jobs.
High-Strength Materials for Extended Service Life
Material Composition and Wear Resistance
Each YC85 bottom roller is manufactured with premium-grade forged 45# steel or equivalent alloy. The surface is induction hardened to achieve HRC 52–58, significantly enhancing wear resistance and impact strength. The internal bushing is made from high-performance alloy such as 40Cr or 42CrMo, ensuring long-term performance even under continuous load and motion.
Optimized Heat Treatment and Precision Machining
Through precision CNC machining and multi-stage heat treatment, the YC85 roller achieves perfect dimensional tolerances and superior structural integrity. The heat treatment process enhances both the roller’s core toughness and surface hardness, making it resilient in abrasive and muddy conditions often encountered on job sites.
Manufacturing Process for YC85 Bottom Roller
Our production workflow includes forging, rough machining, heat treatment, finish machining, seal installation, and final inspection. We utilize automated machining centers to guarantee consistency, and each unit is assembled with high-quality floating seals to maintain oil retention and internal lubrication. This ensures stable performance with minimal maintenance.
Heat Treatment
Machining Process
CNC turning and milling ensure dimensional accuracy
Assembly
Running Test
Simulated load test to verify functionality
Paint Spraying
Anti-rust coating for surface protection
Packing
Excavator YC85 Bottom Roller : Function and Performance
The YC85 track roller is a vital component of the undercarriage system, providing essential support for the machine’s track chain. It ensures consistent contact with the ground, balances the load weight of the excavator, and stabilizes track movement during travel and excavation. Especially designed for mid-sized Yuchai machines, this roller enables smooth operations on construction sites, agriculture, and light demolition jobs.
High-Strength Materials for Extended Service Life
Material Composition and Wear Resistance
Each YC85 bottom roller is manufactured with premium-grade forged 45# steel or equivalent alloy. The surface is induction hardened to achieve HRC 52–58, significantly enhancing wear resistance and impact strength. The internal bushing is made from high-performance alloy such as 40Cr or 42CrMo, ensuring long-term performance even under continuous load and motion.
Optimized Heat Treatment and Precision Machining
Through precision CNC machining and multi-stage heat treatment, the YC85 roller achieves perfect dimensional tolerances and superior structural integrity. The heat treatment process enhances both the roller’s core toughness and surface hardness, making it resilient in abrasive and muddy conditions often encountered on job sites.
Manufacturing Process for YC85 Bottom Roller
Our production workflow includes forging, rough machining, heat treatment, finish machining, seal installation, and final inspection. We utilize automated machining centers to guarantee consistency, and each unit is assembled with high-quality floating seals to maintain oil retention and internal lubrication. This ensures stable performance with minimal maintenance.
Heat Treatment
Machining Process
CNC turning and milling ensure dimensional accuracy
Assembly
Running Test
Simulated load test to verify functionality
Paint Spraying
Anti-rust coating for surface protection
Packing
OEM Undercarriage Parts for YUCHAI Excavators
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| YUCHAI | YC08-9 | YC10 | YC13-8 | YC15-8 | YC18SR | YC20SR | YC25-8 | YC26-9 |
| YC27-8 | YC35SR | YC35-9 | YC55SR | YC60-9 | YC60-8 | YC65-8 | YC68-8 | |
| YC75 | YC85-8 | YC85-9 | YC135-9 | YC135-8 | YC135SR | YC215-9 | YC230LC-9 | |
| YC230-8 | YC260LC-9 | YC280LC-8 | YC300LC-9 | YC360LC-9 | YC380LC | YC480LC-8 | YC500LC-9 | |
| YC520LC | YC550LC | YC600LC | YC800LC | YC135SR | YC60SR | YC18 | YC35-8 | |
| YC230-9 | YC135-9Pro | YC75-9 | YC85SR | YC230SR | YC85Pro | YC215Pro | YC500Pro | |
| YC65SR | YC60Pro | YC60Mini | YC35SRPro | YC90 | YC370LC | YC850LC | YC980LC | |
| YC155SR | YC215LC | YC300SR | YC135LC | YC60E | YC18SRPro | YC80Pro | YC35E | |
| YC28SR | YC120LC | YC220LC | YC700LC | YC230E | YC135Pro | YC280Pro | YC550Pro | |
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Compatibility and OEM Reference Numbers
The YC85 track roller is designed as a direct replacement for Yuchai’s original undercarriage parts. Its structure and dimensions fully conform to OEM standards, ensuring no modification is needed during installation.
OEM Reference Numbers (for search and cross-check):
- YC85-TR001
- YC85-2502
(Note: Exact part numbers may vary depending on year or production batch. Please verify with your equipment manual or consult our team.)
Quality Assurance and Inspection Standards
Our rollers undergo rigorous quality inspections, including:
- Surface hardness testing
- Oil seal integrity verification
- Dimensional accuracy measurement
- Concentricity and roundness checks
Each unit is serialized and tracked for quality traceability, ensuring that you receive only the best components in every shipment.
Why Choose Our YC85 Track Rollers?
Direct OEM replacement for Yuchai excavators
- Forged from high-strength steel with advanced hardening
- Designed to handle high impact and abrasive conditions
- Supports global distribution and private label service
- Technical support and fast delivery from a trusted supplier
Whether you're a dealer, contractor, or rental fleet operator, we can provide the right rollers at competitive prices and stable quality.
Maintenance Advice for Long-Term Durability
To maximize the lifespan of your YC85 track roller:
- Clean the undercarriage regularly to remove debris
- Check for oil leakage or worn-out seals
- Replace rollers in sets for even wear
- Avoid long idle times on rocky or uneven ground
Proactive maintenance not only extends the roller’s life but also prevents premature wear of your entire undercarriage system.
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
