Bonded Seal BR Type
Bonded Seal (Washer Oil Seal, Iron Sheet Washer) is a seal that is bonded between iron and rubber. It is applied to a flat surface or a recessed gap threaded hole to increase the tightening performance of the screw, thereby achieving oil resistance, The need for waterproofing. BR has the same characteristics as BS, but there is an extra lip in the middle of the inner diameter, which has the function of automatic center positioning, which can prevent the seal from being displaced after assembly (mostly used in European thread sizes).