Новости

When track rollers on crawler machinery like excavators or bulldozers become worn or damaged, they can cause issues such as machine deviation, loss of power, and other operational failures. If not replaced promptly, they may also accelerate the wear of other undercarriage parts, such as the track chain.

Many users face a common dilemma when replacing track rollers: Should only the severely damaged ones be replaced, or should rollers that appear partially worn but still functional also be changed? My recommendation is to replace all rollers on one side with new ones. Partially worn rollers can be moved to the opposite side, ensuring that one side operates entirely with new rollers. Here’s why:

Uneven wear: Mixing old and new rollers on the same side creates height differences due to varying wear levels.

Uneven load distribution: The older rollers may not bear weight properly, causing the new rollers to wear out faster.

Accelerated track chain wear: This imbalance also increases stress on the track chain, leading to higher long-term costs.

Key Steps for Purchasing Track Rollers

Provide Machine & Part Details:

Share your excavator/dozer model and part number with the supplier to ensure compatibility.

Exception: Some machines (e.g., Hyundai R210LC-7) may have different rollers across production batches. Verify the bolt hole spacing to confirm fitment.

Match Roller Quality to Working Conditions:

Harsh conditions (mining, rocky terrain): Opt for high-end rollers with: ✓ Heat-treated surfaces (longer wear resistance) ✓ Larger tread width (better load distribution) ✓ Heavier weight (indicates robust material, e.g., forged steel)

Price vs. Value: Premium rollers reduce downtime and improve efficiency, justifying their higher cost.

Consult the Supplier for Technical Specs

Ask about:

✓ Material (e.g., alloy steel vs. standard carbon steel)

✓ Hardening process (e.g., induction hardening for durability)

✓ Sealing technology (e.g., multi-labyrinth seals for dust resistance)

Final Tip

Focusing on these factors will help you select the optimal track rollers, extending the lifespan of your undercarriage parts and maximizing machine performance.