HIGH-PRESSURE RADIAL SHAFT SEAL WITH ENHANCED WEAR RESISTANCE
개요
출원인
TRELLEBORG SEALING SOLUTIONS US, INC.
발명자
Martin Franz; Jeff Baehl; Nino Dakov; Felix Schiefer
IPC 분류
CPC 분류
A radial shaft seal has a polymer sealing ring, a holding section having a polymer-bonded reinforcement insert, and a sealing lip extending away from the holding section in an axial direction of the sealing ring. The sealing lip has a first end connected to the holding section and a free second end provided with a sealing edge on a radial inside and a groove on a radial outside of the sealing lip. A radially deformable deformation zone of the sealing lip is between the first end and the sealing edge. The radial shaft seal has a spring in the groove energizing the sealing lip. The sealing ring has a protrusion axially extending from the holding section towards the spring forming an axial stop for the spring and, thus, for the second end of the sealing lip when the deformation zone of the sealing lip is deformed radially inwards.
원문 (중국어)
A radial shaft seal has a polymer sealing ring, a holding section having a polymer-bonded reinforcement insert, and a sealing lip extending away from the holding section in an axial direction of the sealing ring. The sealing lip has a first end connected to the holding section and a free second end provided with a sealing edge on a radial inside and a groove on a radial outside of the sealing lip. A radially deformable deformation zone of the sealing lip is between the first end and the sealing edge. The radial shaft seal has a spring in the groove energizing the sealing lip. The sealing ring has a protrusion axially extending from the holding section towards the spring forming an axial stop for the spring and, thus, for the second end of the sealing lip when the deformation zone of the sealing lip is deformed radially inwards.