| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a seal used in a rolling bearing having a high sliding contact property for a seal contacting surface of a lip portion. <P>SOLUTION: A lip portion 13 (here, the whole elastic body 3) constituted of a molded rubber of the seal 1 is formed so as to have a maximum value of loss tangent (tan δ) of not less than 0.08 and not more than 0.19 in the temperature range of 20 to 70°C. <P>COPYRIGHT: (C)2007,JPO&INPIT |
