| 摘要 |
PROBLEM TO BE SOLVED: To provide a seal for a rolling bearing having transparency to observe the inside of the bearing or seal core metal, with respect to the seal for the rolling bearing for preventing leakage of grease sealed inside of the bearing to the outside, and intrusion of foreign matter such as dust and muddy water into the bearing from the outside.SOLUTION: A rubber material composition constituting a seal for a rolling bearing is prepared by blending a filler of 10-60 pts.wt. to silicone rubber of 100 pts.wt., and the total light transmittance of the rubber material composition is 70% or more. |
