| 摘要 |
PROBLEM TO BE SOLVED: To nullify wasteful man-hours and time for replacement, rearrangement, etc., by establishing a seal of a rotary shaft bearing part effectively and properly in the high speed rotation at a high temp., for example a hot rolled roll bearing part, preventing wear and denaturation of the sealing material and leakage of lubricating oil, and thereby enhancing the durability. SOLUTION: A seal mechanism is to be fitted in a neck part between the body 2 of a roll and a shaft, and is composed of an elastic seal member 1, a fixing part 3 confronting lip parts 11 and 12 installed opposingly on the elastic seal member 1, and an inner ring 4 and taper sleeve 5 formed opposingly on the two sides of the seal member 1. The middle part and/or the joining end part of the lip parts 11 and 12 opposing so as to join with the fixing frame 3 on the two sides of the frame 3 are made in thinner wall gradually, and a groove as oil sump is formed at the forefront of the joint. |
