| 摘要 |
<p>The invention provides a sealing device (1) which is installed to an opening portion between an outer ring and an inner ring of a bearing and inhibits a foreign matter in an outer portion of the bearing from entering into an inner portion of the bearing, the sealing device having an attaching ring which is attached to the outer ring, and a seal lip which is retained to the attaching ring and slidably comes into close contact with the inner ring, wherein the sealing device can meet the needs of torque reduction in recent years, and can exert an excellent sealing performance. The seal lip integrally has a first inclined surface portion which is diagonally formed toward an inner side in a diametrical direction and toward an inner side of the bearing from a base end portion of a lip, and a second inclined surface portion which is diagonally formed toward an inner side in a diametrical direction and toward an outer side of the bearing from a leading end of the first inclined surface portion. The second inclined surface portion is set to a sliding portion in relation to the inner ring. A satin finished processing for enlarging a surface roughness of the sliding portion is applied to the sliding portion.</p> |
