Liugong CLG965 (51c1213c1;21M-30-0010A)track roller assembly/PC650 Bottom Rollers (Lower Rollers)factory/forged track roller supply

Product Specifications

Liugong CLG965 (51c1213c1,21M-30-0010A)track roller assembly/PC650 Bottom Rollers (Lower Rollers)factory

Types of Track Rollers

1. Bottom Rollers (Lower Rollers) – Support the weight of the machine and roll along the underside of the track chain.

2. Top Rollers (Upper Rollers) – Guide the track chain and keep it aligned on the undercarriage.

3. Front Idlers (Guide Rollers) – Positioned at the front of the track frame to help steer and maintain track tension.

4. Rear Sprockets (Drive Rollers) – Driven by the final drive to propel the machine.

Functions of Track Rollers

• Support Machine Weight – Distribute the load evenly across the track.

• Reduce Friction – Allow smooth movement of the track chain.

• Maintain Track Alignment – Prevent derailment and excessive wear.

• Absorb Shock Loads – Help cushion impacts from rough terrain.

Common Materials & Construction

• Hardened Steel – For durability and resistance to wear.

• Sealed & Lubricated Bearings – To extend service life in harsh conditions.

• Rubber-Coated Rollers – Used in applications requiring reduced noise and vibration.

Signs of Worn Track Rollers

• Uneven track wear

• Excessive noise or vibration

• Visible cracks or flat spots

• Leaking grease from seals

• Misalignment of the track

Maintenance Tips

• Regularly inspect for wear and damage.

• Keep rollers properly lubricated (if applicable).

• Replace rollers in sets to ensure balanced performance.

• Clean debris from the undercarriage to prevent premature wear.

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