Product Description
LOCKWASHER
Frequently Asked Questions
Q: What is the SY28551 lockwasher used for?
A: The SY28551 is a lockwasher for manual pallet jack assemblies. Lockwashers prevent fasteners from loosening due to vibration and mechanical shock. They are used under nuts and bolt heads in steering, hydraulic, and load wheel assemblies where vibration resistance is critical.
Q: How does the SY28551 lockwasher prevent fastener loosening?
A: Lockwashers create mechanical interference and friction resistance against fastener rotation. Split-ring or toothed lockwashers deform under bolt load, generating spring tension that resists vibration-induced loosening. This maintains clamping force in moving manual pallet jack assemblies.
Q: What is the bore diameter of the SY28551 lockwasher?
A: Contact us with your manual pallet jack model and the fastener size where the lockwasher is used. The bore diameter must match your bolt or screw diameter. We will confirm the correct SY28551 specifications for your assembly.
Q: Is the SY28551 compatible with manual pallet jacks from different manufacturers?
A: The SY28551 is designed for manual pallet jack applications. Compatibility depends on fastener size, material, and load specifications. Provide your equipment model and serial number to confirm the SY28551 matches your assembly requirements.
Q: When should the SY28551 lockwasher be replaced?
A: Replace lockwashers when they become flattened, deformed, corroded, or when you observe fasteners loosening after initial tightening. A worn lockwasher loses spring tension and cannot maintain vibration resistance. Replace both the lockwasher and any damaged fastener together.