Product Description
Lock washer
Frequently Asked Questions
Q: What material is the CR 81859 lock washer made from?
A: The CR 81859 is a lock washer designed for Crown electric lift trucks. It is manufactured to OEM specifications for corrosion resistance and locking performance. The material and finish are chosen to prevent fastener loosening under vibration and heavy equipment operation.
Q: What size is the CR 81859 lock washer?
A: The CR 81859 lock washer is sized to match specific Crown fastener applications. For exact bore diameter, outside diameter, and thickness specifications, reference the Crown parts diagram or contact us with your model and serial number.
Q: Which Crown models use the CR 81859 lock washer?
A: The CR 81859 is a fastener component used in multiple Crown electric pallet jack assemblies. It is not model-specific but rather applied across multiple applications requiring OEM fastener standards. Verify compatibility with your parts diagram.
Q: Can I substitute a standard lock washer for the CR 81859?
A: Using aftermarket or non-OEM lock washers in critical fastening applications is not recommended. Crown OEM washers meet specific locking torque, material, and dimensional requirements. Using incorrect washers can result in fastener loosening and equipment failure.
Q: What prevents lock washers like the CR 81859 from losing their locking ability?
A: Lock washers maintain their locking function through mechanical deformation, split-ring tension, or helical design that resists vibration loosening. Over time and repeated vibration cycles, lock washers can fatigue and lose clamping force, making periodic replacement necessary for safety-critical fasteners.