| 摘要 |
PROBLEM TO BE SOLVED: To prevent lowering of moving and sealing performance of an installed sealing device, stabilize the seal lip part when the sealing device is used, and improve assembling efficiency in a sealing device comprising an oil seal and a bearing. SOLUTION: A sealing device S1 fixed to the inner peripheral part of a housing 1 is provided with an oil seal 3 having a first cylindrical projecting part 3f opposite to a fitting part 3a through a recessed groove part 3e at the radial part, and a bearing 4 having a second cylindrical projecting part 4a fitted and inserted in the recessed groove part 3e of the oil seal 3 and a third cylindrical projecting part 4b fitted to the inside of the first cylindrical projecting part 3f of the oil seal. Thus, when a sealing device S1 is installed in the inner peripheral part of a housing, the fitting part of the oil seal 3 is subjected to high compressive force by the second cylindrical projecting part 4a and is firmly pressed to the inner peripheral part of the housing 1 to be hardly moved and keep the sealing ability. |
