U20 Mini Excavators Spare Parts Track Lower Roller for Kubota
High-performance Kubota U20 Track Roller designed for stable operation and long-lasting durability. Manufactured from premium forged steel with advanced heat treatment, this bottom roller ensures smooth track movement, reduced vibration, and extended undercarriage life. Perfect OEM replacement with precise fitment for Kubota U20 mini excavators.
| Material | 50Mn/40MnB |
|---|---|
| Surface Hardness | HRC53-58,deepth: 8-12mm |
| Colors | Black or yellow or customized |
Quick Quote Request
Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
The Kubota U20 track roller plays a vital role in the undercarriage system of mini excavators. It supports the machine’s weight and guides the track chain during movement, ensuring smooth travel over uneven terrain. A properly engineered bottom roller reduces ground resistance, improves operational efficiency, and prevents unnecessary wear on other undercarriage parts such as track links and sprockets. For compact machines like the Kubota U20, reliable rollers are crucial to maximize productivity in construction, landscaping, trenching, and utility work.
Material & Heat Treatment
Our Kubota U20 rollers are built from high-grade forged alloy steel, chosen for its strength and toughness under heavy load. The roller body undergoes precision machining and deep hardening heat treatment to achieve surface hardness of HRC 52–58 while maintaining a tough core for impact resistance.
- Shafts and bushings are made from 45# steel or 40Cr, with advanced quenching and tempering to extend wear life.
- Sealing systems feature high-quality floating seals and multi-layer dust protection to keep lubrication inside and prevent contamination by sand, mud, or water.
- Each roller is coated with anti-rust protection and finished with durable painting for extended service in demanding outdoor conditions.
Manufacturing Process
The Kubota U20 track rollers are produced through a controlled step-by-step process:
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 Kubota Excavator
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| KUBOTA | U10 | U15 | U17 | U20 | U25 | U27 | U30 | U35 |
| U45 | U48 | U50 | U55 | U57 | U60 | U65 | U70 | |
| U75 | U80 | KX36 | KX41 | KX61 | KX71 | KX91 | KX121 | |
| KX161 | KX41-2 | KX057 | KX71-3 | KX080 | KX91-3 | KX121-3 | KX161-3 | |
| KX018 | KX019 | KX027 | KX030 | KX037 | KX040 | KX057-4 | KX080-4 | |
| RX201 | RX203 | RX301 | RX302 | RX303 | RX304 | RX306 | RX401 | |
| RX402 | RX403 | RX405 | RX406 | RX502 | RX503 | RX504 | RX505 | |
| RX506 | RX601 | RX602 | RX603 | RX604 | RX605 | RX606 | RX701 | |
| RX702 | RX703 | RX704 | ||||||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
OEM Compatibility and Fitment
This track roller is designed specifically for Kubota U20 mini excavators. The dimensions and installation specifications meet or exceed OEM standards, ensuring perfect compatibility without modification.
- OEM Reference Numbers: Available upon request (customers may provide casting code or part number for cross reference).
- Applicable Models: Kubota U20 and related U20 variants in the same tonnage class.
Quality Control and Testing
Every Kubota U20 roller undergoes strict inspection before shipment. Key testing includes:
- Hardness and metallurgical testing to confirm heat treatment quality.
- Seal leakage test under high pressure.
- Rotational load testing to simulate real working conditions.
- Dimensional and assembly inspection to guarantee fitment.
Application Scenarios
The Kubota U20 track roller is widely used in:
- Urban construction projects where mini excavators work in narrow spaces.
- Landscaping and agriculture, ensuring smooth movement over soil and grassy terrain.
- Utility trenching and pipe laying, providing stable track support in muddy or sandy environments.
- Rental fleets, where durability and reduced maintenance directly improve machine uptime.
Maintenance Suggestions
- Keep the roller and undercarriage clean from excess mud and debris to prevent premature seal wear.
- Regularly check for abnormal noise, oil leakage, or uneven wear patterns.
- Grease and inspect track tension to reduce stress on rollers.
- Replace rollers in pairs or sets for balanced undercarriage performance
Why Choose Our Kubota U20 Track Roller
- OEM-standard fitment with guaranteed compatibility.
- Forged steel and advanced heat treatment for superior strength.
- Reliable sealing system ensuring long service life.
- Strict quality testing for dependable performance.
- Export-ready packaging for safe global delivery.
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.
Quick Quote Request
Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
