Product Description
Bearing
Frequently Asked Questions
Q: What forklift models and locations use the 00591-05505-81 bearing?
A: The 00591-05505-81 is a radial or angular contact bearing designed for carriage rollers, load wheel assemblies, or mast pivot locations on forklift models from Crown, Hyster, Yale, CAT, and Mitsubishi. Cross-reference the bore and outer diameter with the equipment manual to confirm the correct bearing position and size.
Q: What are the bore diameter, outer diameter, and width dimensions of the 00591-05505-81?
A: The 00591-05505-81 dimensions must be verified against your equipment maintenance manual or the original bearing label. Standard forklift load-wheel bearings range from 20 mm to 80 mm bore diameter and 42 mm to 170 mm outer diameter. Measure the old bearing or check the equipment nameplate before ordering.
Q: How do I replace the 00591-05505-81 bearing in a forklift?
A: Remove the wheel or carriage assembly from the mast or frame. Support the assembly securely, then use a bearing puller or press to drive out the old 00591-05505-81 bearing. Clean the bore and shaft thoroughly, apply a thin coat of oil, and press the new bearing straight onto the shaft. Use proper alignment to avoid bearing damage during installation.
Q: What type of bearing cage and seals does the 00591-05505-81 use?
A: The 00591-05505-81 uses either a machined brass or steel cage depending on the model. Contact seals or shields protect against dirt ingress in outdoor or wet environments. Do not attempt to remove or replace internal seals; if a seal fails, replace the entire bearing assembly.
Q: How long does the 00591-05505-81 bearing last before replacement is needed?
A: Service life depends on load, speed, and maintenance. In typical warehouse conditions, expect 3 to 5 years of operation. Outdoor or high-cycle forklift use may reduce lifespan to 1 to 2 years. Replace immediately if you observe abnormal noise, heat, or slow wheel rotation.
Q: Can the 00591-05505-81 bearing be re-greased or rebuilt?
A: Once internal wear develops, re-greasing does not restore performance or remove the noise. The bearing cannot be disassembled or rebuilt in the field. Complete replacement is required; do not attempt to clean, inspect, or repack the bearing.