| 摘要 |
PROBLEM TO BE SOLVED: To simplify manufacture and display stable sealing performance and excellent follow-up performance to the rotational deflection of a rotary shaft. SOLUTION: An oil seal A obliquely brought into contact with the peripheral surface of a rotary shaft B is provided with two annular sheets 1, 2 overlapped axially, and connecting members 3, 4, 5 for connecting both annular sheets 1, 2. Both annular sheets 1, 2 are provided with tongue pieces 11, 21 protruded radially inward every required space in a circumferential direction. One annular sheet 1 and the other annular sheet 2 are overlapped being shifted in phase so as to position the tongue pieces 21, 11 of the other party annular sheets 2, 1 in a spaced area between the adjacent tongue pieces 11, 21 of both annular sheets 1, 2. |
