Lock washer for Bucyrus 4100XPCAC

The 3961500 lock washer serves as a critical component in mechanical assemblies for large mining equipment. Its primary function is to maintain tension on fasteners such as bolts and nuts, preventing them from loosening due to operational vibrations or dynamic loads. By providing a secure locking mechanism, this washer helps maintain the structural integrity of various machine connections.

This component is compatible with Bucyrus 4100XPCAC, Bucyrus 7495HR2, P&H 4100XPCAC, and P&H 7495HR2 excavators. It is utilized in critical fixation points throughout the machine, including the undercarriage, chassis structure, and swing systems, where maintaining proper torque is necessary for safe operation. The part is engineered to meet the specific fitment requirements of these mining excavators.

Lock washers function by exerting spring force or by biting into the mating surfaces to resist rotation. In heavy machinery, these washers are used to ensure that bolted joints remain tight despite the constant movement and stress encountered during excavation and material handling. Proper installation of the correct washer is necessary to ensure the fastener retains its required clamping force over time.