Undercarriage Components Engineered for Maximum Uptime
We manufacture precision JCB excavator undercarriage parts—track rollers, idlers, sprockets, and track chains—that transfer machine weight and maintain track tension under extreme loads.
Direct factory operations eliminate intermediaries. Every component is produced in-house with full OEM manufacturing services, ensuring cost control and consistent quality for international procurement partners.
Severe-duty steel formulations and advanced heat treatment directly combat premature wear, cracking, and pin-boss deformation, keeping your JCB fleets operational and reducing unplanned maintenance costs.
Over 20 years of specialized undercarriage production is verified by ISO9001 and SGS certifications. No marketing claims—just documented process control and batch traceability you can audit.
We forge rollers and idlers from 35MnB steel, achieving HRC 52-58 through deep induction quenching. This creates a wear-resistant case without compromising core toughness against impact.
Core Advantages
- 20+ Years Experience
Two decades focused solely on undercarriage systems means we understand JCB fitment tolerances and load distribution requirements intimately. - Premium 35MnB Material
High-tensile boron steel provides unmatched hardenability, resisting spalling and yielding predictable service life in abrasive excavation environments. - Deep Quenching/Heat Treatment
Computer-controlled induction hardening penetrates 4-8 mm, delivering a uniform martensitic case that extends wear life without brittleness. - ISO9001/SGS Certified
Every production batch undergoes hardness mapping, ultrasonic flaw detection, and dimensional inspection before release, not just sample testing.
Our catalog of JCB Excavator Undercarriage Parts includes various specifications, fully compatible with JCB excavators and bulldozers.
| Production Technical Parameters | |
|---|---|
| Material | 35MnB High-Tensile Boron Steel |
| Hardness (Surface) | HRC 52-58 |
| Hardness (Core) | HRC 32-38 |
| Heat Treatment | Deep Induction Quenching + Tempering |
| Process | Precision Forging, CNC Machining |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 Months / 2000 Hours (whichever first) |
OEM & Customization: We match your drawings or original part numbers precisely. Custom dimensions, bolt patterns, and seal configurations are engineered to OEM standards without deviation.
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Excavator | JCB | JS130, JS160, JS200, JS220, JS260, JS330 |
| Excavator | JCB | JS140, JS190, JS240, JS300, JS360 |
| Bulldozer | JCB | Drott 40, Drott 50 (track-type) |
Delivery & Logistics: Factory-direct pricing with flexible MOQ from 1 unit. We ship FOB Xiamen/Shanghai, ensuring reliable lead times and container optimization.
Technical Features
Floating seal technology in track rollers creates a dynamic oil-lubricated barrier. Duo-cone metal rings rotate against each other, preventing ingress of soil and moisture while retaining internal lubricant for life.
Bimetal bushings bonded with lead-free high-strength bronze combine low-friction sliding with high fatigue resistance, eliminating premature bushing extrusion under JCB’s breakout forces.
Induction-hardened tread surfaces are tempered to balance wear resistance and rolling contact fatigue, preventing spalling that cascades into idler misalignment and chain link wear.
Applications
- Heavy civil construction
- Mining and aggregate extraction
- Quarrying and rock handling
- Road and bridge infrastructure
- Demolition and scrap recycling
Frequently Asked Questions
- What is the minimum order quantity (MOQ)?
- MOQ is flexible. Standard components ship from 1 piece; custom orders may require a small batch to amortize tooling.
- How long is delivery?
- Stock models ship in 7-15 days. OEM production runs require 25-45 days depending on volume and complexity.
- How deep is the heat treatment?
- Effective case depth is 4-8 mm with a gradual hardness gradient, avoiding sharp transitions that cause flaking.
- What warranty do you provide?
- 12 months or 2000 operating hours against material and manufacturing defects. Claims require photographic evidence and inspection.
- Can you match JCB part numbers?
- Yes. Send your original part number or drawing; we cross-reference and manufacture to exact specifications.
Maintenance Guide
- Inspect roller and idler surfaces for oil leaks or excessive wear weekly. Any sign of seal failure demands immediate replacement.
- Measure track sag daily. Incorrect tension forces idler and sprocket eccentric loading, accelerating undercarriage degradation.
- Clean undercarriage after muddy or abrasive operations. Packed debris hardens into a grinding paste during travel.
- Rotate rollers at 1000-hour intervals if clearance allows, distributing wear uniformly across the tread width.
- Monitor sprocket tooth sharpening. Hooking indicates 70% wear and triggers chain replacement to avoid pitch mismatch.