Product Description
ROLL PIN
Frequently Asked Questions
Q: What electric lift truck models use the SY28844 roll pin?
A: The SY28844 roll pin is compatible with electric lift trucks from Crown, Toyota, and Raymond. The pin secures shaft connections, gear assemblies, and pivot points on the drive motor and hydraulic assemblies. Confirm pin diameter and length match your equipment before ordering.
Q: What are the SY28844 roll pin specifications and dimensions?
A: The SY28844 is a standard spring-loaded roll pin with a hollow design that contracts for insertion and springs outward for secure retention. Contact our parts team to verify exact diameter, length, and load capacity for your specific application.
Q: What material composition does the SY28844 roll pin have?
A: The SY28844 is manufactured from spring steel with a zinc-plated finish for corrosion resistance. The hollow coil design allows the pin to compress and expand without permanent deformation under normal operating loads.
Q: When should the SY28844 roll pin be replaced?
A: The SY28844 roll pin typically requires replacement after 2 to 3 years of service. Replace the pin if it falls out during operation, no longer expands to grip the shaft, becomes visibly corroded, or if the joint it secures shows movement or play.
Q: Are there cross-reference roll pin alternatives to the SY28844?
A: Multiple OEM roll pins are dimensionally equivalent to the SY28844. Contact our parts team with your truck brand, model, and the joint location to identify compatible replacements.
Q: What causes SY28844 roll pin failure?
A: Common failure causes include corrosion reducing the spring tension, improper diameter selection causing the pin to fall out, shock loads exceeding the pin capacity, or wear of the shaft hole increasing clearance. Using the correct diameter pin and maintaining equipment prevents most failures.
