Wedge Lock Washer

A wedge lock washer is a specialized locking washer designed to prevent bolted joints from loosening due to vibration or dynamic loads. It consists of a pair of washers with interlocking wedge-shaped cams on one side and radial serrations on the other.

Description:

• Made from high-strength steel or stainless steel.
• Supplied as a matched pair of washers.
• The outer surfaces have serrations that grip the mating surfaces.
• The inner surfaces have wedge-shaped cams with an angle greater than the thread pitch of the bolt.
• When the bolt is tightened, the serrations lock the washers against the joint surfaces while the cams engage each other.
• If the bolt begins to loosen, the wedge action forces the washers apart, increasing the clamping force and resisting rotation.
• Effective in applications exposed to vibration, shock, and dynamic loading.
• Reusable if inspected and free from damage.
• Commonly used in construction, heavy machinery, railways, wind turbines, mining equipment, automotive, and industrial applications.