Product Description
BEARING assembly
Frequently Asked Questions
Q: What is SKU 30661 and what is it used for?
A: SKU 30661 is a bearing assembly for manual pallet jack applications. It is used in load wheel hubs and steering wheel hubs to provide smooth rotation and support under load. This part is compatible with most manual pallet jack models from Crown, Toyota, Raymond, Yale, and other major manufacturers.
Q: What are the dimensions and specifications of this bearing assembly?
A: Specific dimensions for SKU 30661 should be verified against your manual pallet jack model documentation. Bearing assemblies for manual pallet jacks typically have bore sizes ranging from 15 mm to 25 mm and outside diameters from 35 mm to 50 mm. Confirm the exact specifications with your equipment before ordering.
Q: What material is this bearing assembly made from?
A: SKU 30661 is manufactured from high carbon chromium steel (SAE 52100 or equivalent) for the raceway and rolling elements, providing hardness and wear resistance. Many manual pallet jack bearing assemblies include contact seals or labyrinth seals to exclude contamination and extend service life in warehouse environments.
Q: What is the typical lifespan of this bearing assembly?
A: Under normal manual pallet jack operating conditions, bearing assemblies typically last 3 to 5 years or more. Lifespan depends on load frequency, warehouse conditions, contamination exposure, and maintenance. Regular inspection for noise, binding, or play will help identify when replacement is needed.
Q: What are the symptoms of a failing bearing assembly?
A: Common failure indicators include grinding or squealing noise from the wheel, resistance or binding during operation, visible play or looseness in the wheel, or rough rotation of the load wheel. These symptoms indicate the bearing raceway or rolling elements are worn and replacement is required.