This is a carrier roller for Volvo excavators, designed to support the track chain and guide its movement along the upper side of the undercarriage. It is built with high-grade steel and precision bearings to withstand heavy loads and harsh operating conditions, unlike worn rollers that can develop flat spots or seize. Operators may observe increased vibration, unusual noise from the undercarriage, or accelerated wear on the track chain when a carrier roller fails.
Always verify with serial number before ordering.
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Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
Early failure symptoms include a humming or grinding noise from the top of the undercarriage and increased vibration felt through the operator's cab. If left unaddressed, the roller can seize, causing rapid wear on the track chain and potentially leading to track derailment. Continued operation with damaged rollers significantly increases the risk of premature undercarriage component failure.
Before installing, ensure the mounting surface on the excavator frame is clean and free of debris to ensure proper seating. Do not overtighten the mounting bolts, as this can damage the roller's bearing assembly.
Inspect the track chain for abnormal wear patterns and check the tensioning system for proper function when replacing carrier rollers.