Product Description
CONE, BEARING
Frequently Asked Questions
Q: What is bearing cone 521373 and what does it fit?
A: SKU 521373 is a bearing cone (inner race) designed for tapered roller bearing applications on manual pallet jacks and lift trucks. Bearing cones are sold separately from the cup (outer race) and are used as repair components when the inner raceway requires replacement. This cone is compatible with equipment from Crown, Toyota, Raymond, Yale, and similar manufacturers using tapered roller bearing assemblies.
Q: When should bearing cone 521373 be replaced?
A: Replace the bearing cone when you observe spalling (pitting), scoring, or visible wear on the raceway surface. Tapered roller bearings typically have a cone and cup that wear together. If wheel noise increases, there is excessive axle play, or the wheel drags, inspect the cone and cup for damage. Both parts should be replaced as a set for optimal performance.
Q: What material is bearing cone 521373 made from?
A: Bearing cone 521373 is manufactured from high carbon chrome bearing steel, a standard material for industrial tapered roller bearings. This steel provides the hardness and wear resistance required to handle the heavy intermittent loads typical of pallet jack and lift truck axle applications.
Q: Can I replace just the bearing cone, or must I buy the complete bearing assembly?
A: SKU 521373 is the cone (inner race) only. When replacing tapered roller bearings, it is standard practice to replace both the cone and cup (outer race) together. If you need the matching cup, provide us with your equipment model and we can identify the correct cup SKU for your specific axle application.
Q: What is the typical lifespan of a bearing cone in pallet jack or lift truck service?
A: With proper maintenance and lubrication, bearing cones in manual pallet jacks typically last 2 to 4 years in standard warehouse duty. High-cycle operations, wet conditions, or poor lubrication shorten lifespan significantly. Electric lift trucks under heavier duty may see faster wear. Regular greasing every 3 to 6 months extends bearing life.