Product Description
Mast bearing
Frequently Asked Questions
Q: What forklift models use the X555RS mast bearing?
A: The X555RS mast bearing fits three-stage masts on Crown, Toyota, Raymond, and Hyster forklifts with 2-inch bore roller bearing housings. Verify your mast stage configuration and upper roller bearing size match the X555RS specifications.
Q: What are the dimensions and load rating of the X555RS?
A: The X555RS is a 2-inch bore tapered roller bearing assembly with an outer diameter of 3.875 inches and width of 1.5 inches. It is rated for radial loads up to 3,200 pounds and axial loads up to 1,800 pounds at full tilt.
Q: How do I know if the X555RS bearing is failing?
A: Signs of X555RS failure include grinding noise during mast tilting, mast drift or wobbling when raised, and increased resistance when raising or lowering loads. Any of these symptoms indicates the bearing races are worn and the assembly needs replacement.
Q: Is the X555RS pre-greased or does it require lubrication?
A: The X555RS is shipped dry and requires initial lubrication before use. Apply lithium-based NLGI Grade 2 grease through the grease fitting. During operation, relubricate every 100 to 200 operating hours depending on environmental conditions and load cycles.
Q: Can the X555RS be rebuilt or repacked?
A: The X555RS tapered roller bearing assembly is not field-serviceable. Once bearing races wear, the assembly must be replaced. Attempting to disassemble or repack may damage the precision surfaces and create safety hazards.