Sealing ring for shaft comprises dust seal and dynamically stressed sealing lip which form chamber with shaft in which second ring made of self-lubricating material is located

摘要

The sealing ring comprises a dust seal (1) and a dynamically stressed sealing lip (3). These, together with the shaft (4) to be sealed, form a chamber (5). A second ring (6) made of self-lubricating material is located in this and contacts the internal surfaces (7, 8) of the seal and sealing lip.