Product Description
BEARING assembly (SINGLE SHIELD)
Frequently Asked Questions
Q: What does the single shield design on the PM312211-000 bearing assembly provide?
A: The single shield design on the PM312211-000 provides protection from dirt and contaminants on one side of the bearing while allowing access for lubrication and inspection. This design is typical for load wheel and axle applications in manual pallet jacks.
Q: Which manual pallet jack models are compatible with the PM312211-000?
A: The PM312211-000 bearing assembly is used in manual pallet jacks from Crown, Toyota, Raymond, and Yale. Confirm your equipment model, bearing bore diameter, and mounting location before ordering.
Q: What is the material and hardness specification for the PM312211-000?
A: The PM312211-000 is manufactured from high-carbon steel, case-hardened and precision ground for durability under the radial loads of manual pallet jack operation. The single shield is typically stamped steel.
Q: How often should the PM312211-000 bearing be lubricated?
A: Lubrication intervals depend on use frequency and environment. The single shield design allows grease access. Inspect bearing condition during routine maintenance and relubricate as needed, typically every 1000-2000 operating hours in high-use applications.
Q: What is the difference between the PM312211-000 (single shield) and a double-shield bearing?
A: Single shield bearings like the PM312211-000 have one seal and allow lubrication access. Double shield bearings have seals on both sides and are more closed. Single shields are used when relubrication access is needed; double shields are preferred in extremely dirty environments.
Q: Are there cross-reference or superseding part numbers for the PM312211-000?
A: The PM312211-000 is the primary SKU for this single-shield bearing assembly. OEM equivalents vary by pallet jack brand and manufacturing year. Contact us with your equipment information for specific cross-references.
