MINI excavator OEM customization-spare parts/customized according and samples/China carrier/top roller factory

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RS-MINI excavator OEM customization-spare parts/customized according and samples

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MINI excavator OEM customization-spare parts/customized according and samples/China carrier/top roller factory

Excavator Carrier Roller: Overview & Key Details

The carrier roller (also called an upper roller) is a critical part of an excavator’s undercarriage system, supporting the weight of the machine and guiding the track chain along its path.

1. Functions of a Carrier Roller

Supports Machine Weight: Helps distribute the excavator’s load evenly across the track.
Guides the Track Chain: Keeps the track aligned and prevents lateral movement.
Reduces Friction: Minimizes wear on the track links and other undercarriage components.

2. Types of Carrier Rollers

Type	Description
Single-Flange	Has one raised edge to prevent track slippage (common in most excavators).
Double-Flange	Features flanges on both sides for extra track stability (used in high-stress conditions).
Non-Flanged	Smooth design, used in specific applications where lateral movement is minimal.
Sealed & Lubricated	Contains internal grease for longer lifespan (common in modern machines).

3. Signs of a Worn-Out Carrier Roller

✔ Excessive Play or Wobble (bearing failure)
✔ Visible Wear or Flat Spots on the roller surface
✔ Track Misalignment or Derailment
✔ Grinding or Squeaking Noises while moving
✔ Grease Leaks (indicates seal damage)