Product Description
Spring - caster outer
Frequently Asked Questions
Q: What does the IU SP-437 outer caster spring do?
A: The IU SP-437 is the outer caster spring that works in conjunction with the inner spring to stabilize the caster wheel. It prevents lateral deflection and maintains wheel alignment during cornering and load shifts.
Q: What is the fit and compatibility of the IU SP-437?
A: The IU SP-437 outer spring fits standard caster assemblies on 5000 to 6000 pound capacity manual pallet jacks. It pairs with the inner spring (IU SP-424) to deliver balanced suspension. Confirm your caster model before ordering.
Q: Which equipment brands use the IU SP-437?
A: The IU SP-437 is used on caster assemblies from Crown, Toyota, Raymond, Yale, Hyster, Linde, and CAT pallet jacks. Cross-reference your equipment documentation to verify compatibility.
Q: What material is the IU SP-437 made from?
A: The IU SP-437 is manufactured from heat-treated carbon steel with corrosion-resistant plating. The material withstands repeated flexing and lateral forces in material handling environments.
Q: When should I replace the IU SP-437?
A: Replace the outer spring if the caster pulls to one side, exhibits excessive side-to-side play, or shows visible permanent deformation. Always replace both inner and outer springs as a pair to maintain even suspension.
Q: What is the service life of the IU SP-437?
A: The IU SP-437 typically lasts 4 to 7 years under normal warehouse conditions. Service life is extended by maintaining proper load balance and avoiding overload situations.
