| 摘要 |
PROBLEM TO BE SOLVED: To effectively follow for sealing in relation to a little vibration between a rotary member and a fixed member by providing lips, which are respectively made of the seal material and which respectively have a bent part at an intermediate part thereof, in parallel with a projecting part of a bearing fixing frame, and fastening a bearing part of a rotary roll so that the tip of each lip is made to pressure-contact with both sides of the projecting part for sealing. SOLUTION: An inner ring 13 is pushed by a shoulder part of a roll in the condition that a clearance is formed between a projecting part 15 and the inner ring 13, and while a taper sleeve 11 is pushed so that a tip of the inner ring 13 pushes a base end of one lip seal 2, and the tip of the taper sleeve 11 pushes the other lip seal 2. As a result, tips of the lip seals 2, 2, which are bent at each bent part 2a, pinches both sides of the projecting part 15 for contact. Consequently, even in the case where the projecting part 15 of the fixed frame 5 is moved in the axial direction (right and left direction in the figure), only the bending condition of the tip of each lip seal 2, 2 is fluctuated a little, and lips are not separated from the projecting part 15. |
