Product Description
Cup, bearing
Specifications
Product Overview
| Product Type | Tapered Roller Bearing Cup (Outer Race) |
Physical Specifications
| Material Composition | Hardened Steel |
| Related Component | Bearing Cone 921-002-005 |
| Wear Indicators | Grinding/rough noise, wheel resistance, wobbling, visible surface damage |
Compatibility
| Application | Manual Pallet Jack Wheel Assemblies |
| Replacement Recommendation | Replace as a matched pair with bearing cone for optimal performance |
Frequently Asked Questions
Q: What is the bearing cup 921-002-006 and how does it function?
A: The bearing cup (921-002-006) is the outer race of a tapered roller bearing. It sits in the wheel hub or steering axle and provides the stationary race surface against which the bearing cone and rollers rotate, supporting the wheel load.
Q: What manual pallet jack brands use the 921-002-006 bearing cup?
A: The 921-002-006 fits manual pallet jacks from Crown, Toyota, Raymond, Yale, and Jungheinrich. Confirm the cup bore diameter, outer diameter, and hub fit match your jack wheel assembly before ordering.
Q: How do I know if the 921-002-006 bearing cup needs replacement?
A: Signs of bearing cup wear include grinding or rough noise when wheels roll, resistance to wheel rotation, wobbling wheels, or visible damage to the cup surface. Any of these symptoms indicate the cup should be replaced to prevent total wheel failure.
Q: What is the material composition of the 921-002-006?
A: The bearing cup is made from hardened steel to match the hardness and durability of the bearing cone. This ensures even load distribution and resistance to the constant rolling stress of material handling operations.
Q: Do I need to replace the cone and cup together?
A: Yes. The cone (921-002-005) and cup (921-002-006) wear together as a matched pair. If one is severely worn, the other will quickly degrade. We recommend replacing both components and fresh grease for best results and longest lifespan.
Q: What cross-reference part numbers exist for the 921-002-006 bearing cup?
A: OEM equivalents exist across Crown, Toyota, and Raymond product lines. Contact us with your pallet jack model and serial number for exact cross-references to ensure you order the correct bearing cup.