Product Description
Precision single-row deep groove ball bearing, 6203LLU, for manual pallet jack applications; double nitrile rubber contact seals, 17 mm bore, 40 mm outside diameter, 12 mm width, and pressed steel cage. Dynamic load capacity 10.6 kN. Cross-references: BB620303, 203FF.
Specifications
Material
| Ring/Ball Material | High carbon chrome steel |
Part Numbers
| OEM Part Number | 6203LLU |
| Manufacturer Part Number | BB620303 |
| Cross-Reference Part Numbers | 203FF |
| Supersedes/Replaces | 203FF |
Frequently Asked Questions
Q: What are the specifications for the 6203LLU bearing?
A: The 6203LLU is a precision deep groove ball bearing with a 17 mm bore, 40 mm outside diameter, and 12 mm width. It has a dynamic load capacity of 10.6 kN, double nitrile rubber contact seals, and a pressed steel cage for reliable performance in manual pallet jack wheel assemblies.
Q: What is the cross-reference and part number information for the 6203LLU?
A: The 6203LLU cross-references to 203FF and supersedes older bearing designations. The OEM part number is 6203LLU, and the manufacturer part number is BB620303. This bearing is also equivalent to standard 6203-2RS models from major brands like SKF, NSK, and NTN.
Q: What material are the balls and cage made from?
A: The 6203LLU uses high carbon chrome steel balls for exceptional hardness and durability. The cage is pressed steel, which provides reliable ball spacing and reduces friction compared to heavier brass cages, making it ideal for manual pallet jack load wheels.
Q: How does the 6203LLU perform in wet or cold storage environments?
A: The double nitrile rubber contact seals on the 6203LLU provide good protection against moisture and contamination. However, in freezing conditions or prolonged wet exposure, grease viscosity may change. Verify that your maintenance schedule includes periodic inspection and relubrication if the bearing operates in cold storage facilities.
Q: Is the 6203LLU compatible with all manual pallet jack brands?
A: The 6203LLU is compatible with manual pallet jack models from Crown, Toyota, Raymond, Yale, Hyster, and other brands that use 17 mm shaft sizing and 40 mm outside diameter wheel hubs. Always compare the original bearing dimensions and clearance grade (C3) before ordering to ensure proper fitment.
