115‑3698 Heavy Duty Idler Assembly — Precision Undercarriage Guide Wheel for CAT 330B

The Cat® 115‑3698 Heavy Duty Idler Assembly is a critical undercarriage component engineered exclusively for CAT 330B series excavators. It provides reliable track chain guidance, supports machine weight, and works with the recoil spring system to maintain ideal track tension. Built with high‑strength alloy steel and precision sealed components, this idler delivers exceptional impact resistance and long service life in harsh rocky, muddy, and high‑load construction environments.

1. Technical Specifications

2. Machine Compatibility

This heavy‑duty idler assembly is precision‑engineered for the following CAT excavator models:

• Excavators: 330B L (Long Undercarriage), 330B LN (Long Narrow Undercarriage)

3. Key Features & Advantages

• Precision Track Guidance: Optimized flange profile maintains perfect track alignment, eliminating de‑tracking and reducing uneven wear on track links.

• Stable Tension Control: Works seamlessly with recoil springs and adjusters to maintain ideal track tension, protecting final drives and undercarriage parts.

• Extreme Load Capacity: Heavy‑duty alloy steel structure and 3.0‑inch shaft withstand high impacts in rocky terrain without bending or cracking.

• Leak‑Free Sealed Design: Premium CAT‑spec seals lock in lubrication, ensuring maintenance‑free operation in dusty, wet, or submerged conditions.

All manufacturer names, part numbers, and descriptions are used for cross-reference and identification purposes only.

For bulk wholesale, technical consultation and undercarriage component solutions:

Xuzhou Sinoswift Import & Export Co., Ltd.
Contact: +86 13701956981
Email: [email protected]