| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing in which a cage retains a plurality of rolling elements disposed between an inner ring and an outer ring and annular sealing members are disposed between both axial-direction ends of the inner ring and the outer ring, the rolling bearing having such a sealing structure that generation of friction heat between the annular sealing members and the groove inner surfaces of sealing grooves is suppressed, consequently a rise in rolling bearing temperature is suppressed. <P>SOLUTION: Each of the sealing members 10 is formed by fixing a rubber material 11 to a core metal 12 made of a metal plate, the outer peripheral parts 14 of the sealing members 10 are fixed in the fixing grooves 8 of the outer ring 2, the inner peripheral parts 15 of the sealing members 10 are fixed in the sealing grooves 7 of the inner ring 1, and thin easily broken parts 13 are formed on the entire circumference between the outer peripheral parts 14 and the inner peripheral parts 15 of the sealing members 10. The easily broken parts 13 are broken when the inner ring 1 and the outer ring 2 relatively rotate, each of the sealing members 10 is divided into an inner annular member 10b and an outer annular member 10b, and the part between the inner annular member 10b and the outer annular member 10a is sealed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
