SKF VIBRACON Cylindrical Anti Vibration Mount, Spherical washers

The SKF spherical washers are intended to establish a precise, parallel plane between the nut's face and the bolt head. These washers prevent the bolt from bending by automatically adjusting and compensating for the angular deviation between the planes.

Evenly distributed bolt tension
Reduces bolt fatigue from bending bolts
Surface treated for protection in humid and harsh environments