Product Description
CUP, BEARING
Specifications
Product Overview
| Product Type | Bearing Cup (Outer Raceway) |
| Part Number | 40784 |
Physical Specifications
| Bearing Style | Compatible with Sealed and Open Bearing Designs |
| Bearing Position | Outer Raceway Component |
| Load Type | Lateral and Radial Loads |
Compatibility
| Application | Steering, Wheel, and Drive Assemblies |
| Equipment Category | Manual Pallet Jacks, Forklifts, Stackers |
Frequently Asked Questions
Q: What is a bearing cup and what function does the 40784 serve?
A: A bearing cup is the outer raceway component of a rolling element bearing assembly. The 40784 bearing cup provides the load-bearing surface for the ball or roller elements in pallet jack steering, wheel, or pump assemblies. It supports lateral and radial loads during equipment operation.
Q: Which pallet jack models and brands use the 40784 bearing cup?
A: The 40784 is a replacement bearing cup used across multiple manual pallet jack OEM brands including Crown, Toyota, Raymond, and Yale. Confirm the specific assembly where this cup is installed on your equipment before ordering to ensure correct fitment.
Q: What are the bore and outside diameter specifications for the 40784?
A: Verify the bore diameter, outside diameter, and width dimensions against your bearing assembly specification sheet. Bearing cups must be precisely matched to the shaft diameter and housing bore. Cross-check your equipment documentation before ordering.
Q: Is the 40784 compatible with sealed or open bearing designs?
A: The 40784 bearing cup functions as the outer raceway in both sealed and open bearing assemblies. Confirm whether your equipment uses sealed cartridge bearings or open cup-and-cone designs, as this affects the complete bearing kit required.
Q: When should the bearing cup be replaced?
A: Replace the bearing cup if you observe noise, play, or resistance when rotating the affected assembly. Bearing cups develop spalling and surface damage over time. If the bearing cup is damaged, the complete bearing assembly typically requires replacement.