Ravi Engineering Company

A conical washer is a cone-shaped, flexible metal washer, also known as a disc spring or Belleville washer, designed to provide a constant spring force to a bolted assembly, resisting loosening caused by vibration, thermal expansion, or material creep. This spring action helps maintain proper tension on the fastener, ensuring a secure hold in applications requiring high resistance to dynamic loads, such as in the automotive, aerospace, and marine industries.

A contact washer is a conical-shaped spring washer with a ribbed or serrated top surface that provides a strong locking force and prevents fasteners from loosening under vibration and pressure. The washer's design, featuring a ribbed top and conical shape, creates both a spring-like action and a form-fit lock as its teeth grip the component surfaces. Made from spring steel or stainless steel, they are used in mechanical assemblies, electrical connections, and any application requiring a high preload force and reliable, vibration-resistant fastening.