JCB Upper Carrier Roller - DELLAR
Upper carrier roller from the renowned DELLAR brand, designed for JCB excavator crawler systems. This component is responsible for correctly guiding the upper section of the track chain and preventing excessive sagging, which directly contributes to vibration reduction and machine travel stability. The roller is made of forged steel with increased abrasion resistance, ensuring a long service life in difficult terrain conditions.
Significant product features:
- Sealing Technology: The use of high-grade mechanical seals prevents oil leaks and protects the roller's interior from mud, water, and dust.
- Induction Hardening: The roller track undergoes a precision hardening process, resulting in exceptional surface hardness that minimizes wear when in contact with the chain links.
Technical Specification:
| Manufacturer |
DELLAR |
|---|
| Application |
Crawler undercarriage (Upper Roller) |
|---|
| Material |
Forged steel, surface hardened |
|---|
Compatibility (JCB Tracked Excavators):
JS Series Models: JS 115, JS 130, JS 145
Technical Advice: Wear on carrier rollers is often overlooked, yet it has a significant impact on the lifespan of the expensive track chain. A seized or excessively worn roller causes sliding friction that destroys the chain links. When replacing upper rollers, it is recommended to check the track tension and the condition of the bottom track rollers. Remember to tighten the mounting bolts to the manufacturer's recommended torque to prevent loosening during high-vibration operation.
