Product Description
BEARING assembly (SINGLE SHIELD)
Frequently Asked Questions
Q: What is the 7140306 bearing assembly with single shield?
A: The 7140306 is a bearing assembly with single shield construction used in manual pallet jack wheel support applications. The single shield provides protection on one side while allowing easier relubrication access on the open side compared to double-sealed designs.
Q: How does single shield differ from double-sealed bearing designs?
A: Single shield bearings have protection on one side only, allowing the opposite side to remain open. This design permits easier access for manual relubrication and inspection. Double-sealed bearings are fully sealed and require less maintenance but cannot be relubricated. The 7140306 single shield is preferred in environments where periodic maintenance is performed.
Q: Which manual pallet jack models use the 7140306 bearing?
A: The 7140306 single shield bearing assembly fits multiple manual pallet jack models from Crown, Toyota, Raymond, Yale, and Hyster. Verify your specific equipment model and serial range before ordering to ensure correct fitment.
Q: Is the 7140306 pre-lubricated and what relubrication intervals apply?
A: The 7140306 is pre-lubricated at the factory. With single shield design, this bearing allows for periodic relubrication. In standard warehouse conditions, add grease every 6-12 months or as needed when the wheel begins to turn less freely. Relubricate more frequently in wet or dusty environments.
Q: What is the typical service life of the 7140306 bearing?
A: With proper maintenance and timely relubrication, the 7140306 bearing typically lasts 3-5 years in standard warehouse service. The single shield design and ability to accept relubrication extend service life compared to sealed-bearing alternatives.
Q: How do I know if the 7140306 bearing needs replacement versus relubrication?
A: If the wheel still turns stiffly after relubrication, or if you hear grinding noise when rotating the wheel, the bearing requires replacement. Visual inspection revealing pitted races, discolored steel, or visible damage also indicates replacement is necessary rather than relubrication.
