Product Description
BEARING assembly—sealed ball bearing for manual pallet jack wheel assemblies. Manufacturer part M5103 (Liftsplus.com), constructed to ASTM A295 and SAE 52100 standards. Compatible with standard load wheel and steer axle applications; nominal dimensions 20mm bore, 47mm OD, 14mm width.
Specifications
Material
| Ball Material | High carbon chromium steel (SAE 52100) |
| Cage Material | Steel, riveted |
| Hardness | Balls and raceways: HRC 60 ±2 |
Part Numbers
| Manufacturer Part Number | M5103 |
Frequently Asked Questions
Q: What are the exact dimensions of the M5103 bearing assembly?
A: The M5103 has a 20mm bore, 47mm outside diameter, and 14mm width. These dimensions comply with standard manual pallet jack load wheel and steer axle configurations.
Q: What standards does the M5103 meet?
A: The M5103 is constructed to ASTM A295 and SAE 52100 standards. Balls and raceways are hardened to HRC 60 plus or minus 2, ensuring wear resistance and load capacity.
Q: What material composition does the M5103 use?
A: The M5103 features high-carbon chromium steel (SAE 52100) balls and raceways with a riveted steel cage. This combination provides durability for standard load wheel and steer axle applications.
Q: Is the M5103 sealed, and how does it perform in wet conditions?
A: Yes, the M5103 is a sealed ball bearing, providing protection against moisture and contamination in wet environments and cold storage applications.
Q: What manual pallet jack brands use the M5103 bearing assembly?
A: The M5103 is compatible with standard load wheel and steer axle assemblies across major OEM brands including Crown, Toyota, Raymond, Yale, and Hyster manual pallet jacks. Verify your equipment model and bore diameter before ordering.
Q: When should the M5103 bearing be replaced?
A: Replace the M5103 if you observe grinding noise, resistance to wheel rotation, or visible play at the axle. These symptoms indicate bearing wear. Do not operate equipment with failed bearings as they can cause safety issues.