Product Description
Yale OEM replacement woodruff key (SKU: YL 502389911) for MPB040-AC electric pallet jack drive assembly. High-strength steel shaft coupling component, validated for precise torque transmission.
Specifications
Part Numbers
| OEM Part Number | YL 502389911 |
| Compatible Models | Yale MPB040-AC electric pallet jack |
Frequently Asked Questions
Q: What is the purpose of the YL 502389911 woodruff key?
A: The YL 502389911 is an OEM woodruff key used in the drive assembly of Yale electric pallet jacks. It prevents rotational slippage between the shaft and the motor or wheel hub by transmitting torque.
Q: What material is this woodruff key made from?
A: The YL 502389911 is manufactured from high-strength steel, designed to handle the torque requirements of the pallet truck drive system.
Q: Which Yale pallet jack model uses this key?
A: The YL 502389911 woodruff key is compatible with Yale MPB040-AC electric pallet jacks. Verify your exact model before ordering.
Q: What happens if a woodruff key is missing or sheared?
A: If the key is missing or sheared, the shaft and hub will not properly engage, resulting in no drive power transmission to the wheels. The pallet truck will not move even if the motor runs.