SY51258

Frequently Asked Questions

Q: What are the dimensions of SY51258 roll pin?
A: SY51258 has a nominal diameter of 0.188 inch and nominal length of 1.00 inch. These dimensions are designed for gear and shaft retention in manual pallet jack assemblies. Verify exact dimensions against your equipment schematic before ordering.

Q: What material is SY51258 made from?
A: SY51258 is manufactured from SAE 1095 spring steel per ASTM A684 and hardened to Rockwell C45 minimum. This high-carbon steel composition provides strength and resilience required for gear and shaft retention under load.

Q: What manual pallet jacks use SY51258?
A: SY51258 fits multiple manual pallet jack models from Crown, Toyota, Raymond, Yale, and other manufacturers. Confirm your pallet jack model and serial number to ensure this pin is the correct fitment for your assembly.

Q: How long does this roll pin typically last?
A: Lifespan depends on load cycle and maintenance. Under normal warehouse use, expect 3-7 years. Failure signs include loose gear engagement, noise during lift/lower, or visible wear in the gear assembly. Replace immediately if loose or damaged.

Q: Can SY51258 be used as a substitute for other roll pins?
A: No. Do not substitute without confirming dimensions and load rating. Using an incorrect pin size or material can result in poor gear engagement, misalignment, or premature failure of the manual pallet jack assembly.

Q: Are there cross-reference part numbers for SY51258?
A: SY51258 may have equivalent OEM part numbers from pallet jack manufacturers. Provide your equipment model and serial range for a complete cross-reference check.