Product Description
CUP, BEARING
Specifications
Product Overview
| Product Type | Bearing Cup (Outer Raceway) |
Physical Specifications
| Bearing Assembly Type | Tapered Roller Bearing |
| Material | Hardened Steel |
| Surface Finish | Polished Steel |
| Condition | New |
Compatibility
| Compatible Equipment | Manual Pallet Jacks, Wheel Assemblies, Steering Pivots |
| Application Category | Load-bearing wheel and pivot bearings in manual pallet handling equipment |
Frequently Asked Questions
Q: What is the 3131140 bearing cup used for in manual pallet jacks?
A: The 3131140 bearing cup is the stationary outer raceway of a bearing assembly in manual pallet jacks. It supports the rolling elements and transfers loads from moving components (typically wheel hubs or steering pivots) to the jack structure. It must be paired with a matching inner cone for proper operation.
Q: Which manual pallet jack brands use the 3131140 bearing cup?
A: The 3131140 is compatible with manual pallet jacks from Crown, Toyota, Raymond, Yale, Hyster, Clark, and similar manufacturers. Specific application varies by jack model, wheel type, and steering mechanism. Verify your equipment specifications before ordering.
Q: What are the dimensions and load rating considerations for the 3131140 bearing cup?
A: Bearing cup dimensions (bore diameter, outer diameter, width) must match the corresponding cone for proper fit and load capacity. Load ratings depend on bearing type (ball or roller) and steel hardness. Verify compatibility with your jack model documentation or contact us with your equipment specifications.
Q: What symptoms indicate the 3131140 bearing cup has failed?
A: Failure signs include: rough grinding noise from the wheel or pivot assembly, increased rolling friction or difficulty steering, visible spalling or pitting on the raceway surface when inspected, or play or looseness in the wheel assembly. These indicate bearing cup wear requiring replacement.
Q: How long does the 3131140 bearing cup typically last in a manual pallet jack?
A: Bearing cups in manual pallet jacks typically last 5 to 10 years under normal warehouse use. Heavier loads, frequent use on rough surfaces, inadequate lubrication, and contamination reduce service life. Periodic inspection and timely replacement of worn bearings prevent premature wheel or pivot failure.