Deep Groove Ball Bearing for Pallet Jacks

Frequently Asked Questions

Q: What are the exact dimensions and specifications of the 6307-2RS bearing?
A: The 6307-2RS is a single row deep groove ball bearing with a 35 mm bore, 80 mm outer diameter, and 21 mm width. It features double rubber contact seals (2RS designation), a steel cage, and factory lubrication. This bearing is designed for manual pallet jack applications and meets AISI 52100 bearing steel specifications.

Q: What manual pallet jack models and brands is the 6307-2RS compatible with?
A: The 6307-2RS bearing fits multiple manual pallet jack models across major equipment manufacturers including Crown, Toyota, Raymond, Yale, Hyster, and Clark. Verify that your equipment has a 35 mm bore diameter and 80 mm outer diameter before ordering to confirm fitment.

Q: What are the cross-reference and equivalent part numbers for the 6307-2RS?
A: Equivalent part numbers include 6307-2RS1, 6307EE, 6307LL, and 6307LLU. This bearing supersedes 6307-2RSR, replaces 24510172, and is equivalent to FAG 10161025. It is universal across SKF, Timken, Koyo, NSK, PFI, NTN, and FAG bearing brands, ensuring broad compatibility across equipment from different manufacturers.

Q: What seal material does the 6307-2RS use and how does it affect durability?
A: The 6307-2RS features nitrile rubber contact seals (2RS) that provide protection against dirt and moisture ingress in typical warehouse and dock environments. The sealed design extends bearing lifespan compared to open bearings, making it suitable for manual pallet jacks operating on dry to moderately wet floors. The factory lubrication is sealed inside, reducing maintenance requirements.

Q: How does the 6307-2RS bearing compare to shielded (6307-ZZ) or C3 clearance variants?
A: The 6307-2RS offers rubber contact seals that provide stronger contamination protection than metal shields (ZZ variant) but may run slightly warmer. The standard 6307-2RS has normal internal clearance suitable for most pallet jack applications. If equipment operates in extreme temperature ranges or requires tighter tolerances, the C3 clearance variant (6307-2RS-C3) provides expanded internal clearance for higher-speed or higher-temperature applications.

Q: What is the expected service life of the 6307-2RS bearing in a manual pallet jack?
A: Service life depends on load, operating conditions, and maintenance. In typical warehouse duty on a manual pallet jack, the 6307-2RS bearing should deliver 3 to 5 years of service. Bearings operating on wet floors or in cold storage may experience shorter lifespan due to seal degradation. Monitor for noise or increased friction as indicators of bearing wear.