Product Description
Radial ball bearing, replacement part for manual pallet jack load and steer wheels, 20 mm inner diameter, 47 mm outer diameter, 14 mm width, double rubber seal, SAE 52100 bearing steel, pre-lubricated, standard fitment for warehouse and material handling applications.
Specifications
Material & Construction
| Cage Material | Steel |
| Bearing Steel Specification | SAE 52100 |
Dimensions & Specifications
| Inner Diameter | 20 mm |
| Outer Diameter | 47 mm |
| Width | 14 mm |
| Seal Type | Double Rubber Seal |
| Pre-Lubricated | Yes |
| Lubrication Type | Lithium-Based Grease |
| Bearing Type | Radial Ball Bearing |
| Application | Load and Steer Wheels - Manual Pallet Jacks |
Frequently Asked Questions
Q: What are the exact dimensions of this radial ball bearing?
A: This bearing has an inner diameter of 20 mm, outer diameter of 47 mm, and width of 14 mm. These dimensions are standard for load and steer wheels on manual pallet jacks from Crown, Toyota, Raymond, Yale, Hyster, Jungheinrich, Linde, Clark, Mitsubishi, CAT, and BT. Always verify mounting dimensions on your specific equipment before ordering.
Q: What material is this bearing made from and why does it matter?
A: This bearing uses SAE 52100 bearing steel, which is a high-carbon chromium steel designed for strength, hardness, and wear resistance under heavy radial loads. SAE 52100 is the industry standard for pallet jack wheel bearings because it resists compression damage and maintains dimensional accuracy over thousands of load cycles in warehouse environments.
Q: Is this bearing sealed and pre-lubricated?
A: Yes. This bearing features a double rubber seal on both sides and comes pre-lubricated with lithium-based grease. The double seal design protects against water, dust, and debris ingress. No additional lubrication or maintenance is needed at installation. The pre-lubrication extends the initial service life to 1 to 3 years in typical warehouse use.
Q: What cage material does this bearing use?
A: This bearing uses a steel cage to hold and space the ball elements. Steel cages offer superior rigidity and durability compared to plastic or brass alternatives, especially under the high radial loads typical of pallet jack wheels. This design supports consistent wheel rotation and reduces ball-to-ball friction.
Q: How long will this bearing perform in warehouse or cold storage applications?
A: In standard warehouse environments, expect 1 to 3 years of service depending on load intensity, surface conditions, and frequency of use. In cold storage below 0 degrees Celsius, the pre-lubricated grease retains adequate viscosity, but the bearing should be inspected more frequently as cold temperatures can accelerate seal hardening. Bearings operating in wet or outdoor conditions will have reduced lifespan due to seal stress.
