3BB-17-23460

Frequently Asked Questions

Q: What is the 3BB-17-23460 thrust bearing assembly?
A: The 3BB-17-23460 is a precision thrust bearing assembly designed for manual pallet jack pump mechanisms. It is a 20mm bore x 47mm outer diameter x 14mm thick bearing with double rubber seals (2RS configuration), supplied with a washer and retaining ring for proper axial load control during lift cycles.

Q: What equipment does this bearing fit?
A: This thrust bearing assembly is compatible with manual pallet jack pump assemblies rated for 5000 lbs load capacity. It fits standard hydraulic pump shafts in manual jacks from major manufacturers including Vestil, Wesco, Noblelift, and similar brands. Verify bore and outer diameter dimensions match your specific pump assembly before ordering.

Q: What material is this bearing and what durability should I expect?
A: The bearing is precision steel with machined ground surfaces and hardened raceways. Double rubber seals (2RS) provide protection from pump fluid, dirt, and moisture. Expected service life is 2 to 5 years under normal manual pallet jack duty, depending on frequency of use and maintenance. The bearing handles radial and thrust loads during lift and transport cycles.

Q: What does the washer and retaining ring do?
A: The washer distributes axial load across the bearing face and prevents seal damage. The retaining ring (C-clip) holds the bearing in axial position on the pump shaft, preventing lateral movement during lift strokes and maintaining proper load distribution under the hydraulic pressure created by pump operation.

Q: How do I know if this bearing needs replacement?
A: Symptoms of bearing wear include grinding noise from the pump during lift cycles, rough or hesitant pump operation, or visible play on the pump shaft. If the bearing is damaged, replace with the 3BB-17-23460 to restore smooth pump function and prevent further damage to the piston rod and seals.