Product Description
CUP, BEARING
Frequently Asked Questions
Q: What is the purpose of a bearing cup in a pallet jack load wheel assembly?
A: A bearing cup is the stationary outer race of a tapered roller bearing that mounts inside the wheel hub. It provides a hardened raceway surface for rolling elements and is essential for smooth wheel rotation while supporting the full load weight of the pallet jack and its load.
Q: Which manual pallet jack models use SKU 671-024-03 bearing cup?
A: This bearing cup (671-024-03) is compatible with manual pallet jacks from Crown, Toyota, Raymond, Yale, Hyster, Clark, Mitsubishi, Jungheinrich, Linde, CAT, and BT. Always verify the cup bore diameter, outer diameter, and width match your specific wheel hub to ensure correct fit and bearing preload.
Q: What are the typical dimensions and material specifications of this bearing cup?
A: This bearing cup is manufactured from case-hardened steel with a precision-ground tapered raceway. The exact bore diameter, outer diameter, and cup width are critical for proper bearing fitment. Obtain the original bearing cup specifications from your equipment OEM documentation to confirm cross-compatibility.
Q: How do I diagnose if a bearing cup has failed?
A: Failure symptoms include grinding noises from the load wheel, visible pitting or spalling on the raceway, wheel wobble or lateral play on the axle, and difficulty rolling the pallet jack smoothly under light load. Immediate inspection and replacement of the cup is necessary to prevent catastrophic bearing failure.
Q: What is the typical service life of this bearing cup under normal warehouse use?
A: A bearing cup typically lasts 2-5 years in normal warehouse pallet jack service. Lifespan depends on average load weights, floor surface conditions, frequency of use, lubrication maintenance, and storage environment. Heavy use and inadequate maintenance significantly reduce service life.
Q: Is it necessary to replace the bearing cone when replacing this cup?
A: It is highly recommended to replace the cone and cup as a matched set for best results. If the cone appears undamaged and unworn after inspection, it may be reused with a new cup, but mismatched new and old components can cause uneven load distribution and premature wear. When in doubt, replace both components together.