Sealed Deep Groove Ball Bearing Assembly for Manual Pallet Jack

Frequently Asked Questions

Q: What are the materials in the MM130751 bearing assembly?
A: The MM130751 features through-hardened high carbon chromium steel rings, high precision grade G10 or better chromium steel balls, and a riveted steel cage. All components are factory pre-lubricated with dual contact seals.

Q: What applications is the MM130751 designed for?
A: The MM130751 is a sealed deep groove ball bearing assembly engineered for manual pallet jack load wheel or steering applications. The dual contact seals are designed for extended service life in demanding material handling environments.

Q: Which pallet jack brands use the MM130751?
A: The MM130751 is compatible with manual pallet jacks from multiple OEM brands including Crown, Toyota, Raymond, Yale, Hyster, and others that specify this sealed deep groove ball bearing assembly. Confirm compatibility with your equipment documentation.

Q: What do the dual contact seals protect against?
A: Dual contact seals protect the bearing from water, dirt, salt spray, and other environmental contaminants. This is especially critical in outdoor, wet floor, or cold storage material handling operations.

Q: Is the MM130751 pre-lubricated?
A: Yes, the MM130751 is factory pre-lubricated and sealed with dual contact seals. This design protects bearings from contamination and extends service intervals. Do not attempt to relubricate through the seals.

Q: What service life can be expected from the MM130751?
A: Service life depends on load conditions, speed, and environmental factors. The through-hardened steel construction and dual contact seals are engineered for extended durability. Regular inspection is recommended to catch wear early.