Prevent Bolted Fastener Failure by Using Belleville Springs

摘要

Method for preventing failure of bolted fasteners in applications where maintaining adequate load on the bolted connection is essential. Belleville springs prevent the failure of bolted fasteners in many applications where maintaining adequate load on the bolted connection is essential. Failure of a bolted connection is often due to a loss in load of the bolt or bolts holding the connection together. Loss of load is attributable in many cases to plastic deformation in the joint or joints that make up the connection. Plastic deformation in the joints of bolted connections results from several natural occurring events that cause loss of load: embedment of the high spots in the joint, changes in temperature, vibration, gasket set, yielding of the material making up the joint, relaxation of the bolts, over tightening or under tightening the bolts.