CATEngine Parts

1B8735 Woodruff Key — Cat 320C 320D

This Woodruff key is a semi-circular metal key used to connect a rotating machine element, such as a pulley or gear, to a shaft. It fits into corresponding keyways in both components, preventing relative rotation and transmitting torque. A worn key will exhibit signs of fretting or deformation, leading to slippage and potential loss of power transmission. Operators may notice a knocking sound from the affected component or a complete loss of function in the driven system.

Woodruff Key – Part No 1B8735 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeWoodruff Key
MaterialHardened Steel
ApplicationShaft and component drive connection
Service LifeReplace when damaged or during component overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing Woodruff key is often a slight knocking or rattling sound as the key begins to slip within its keyways. If left unaddressed, the slippage will worsen, leading to intermittent power loss or complete disengagement of the driven component. This can result in the inability to operate critical systems driven by the affected shaft.

Installation Tip

Ensure the keyways on both the shaft and the component are thoroughly cleaned and inspected for any burrs or damage before attempting installation. Avoid forcing the key into place, as this can damage the key or the keyways.

Service Note

Inspect the corresponding shaft and component keyways for wear or damage when replacing this Woodruff key.