| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed ball bearing which secures a sufficient waterproof performance while preventing a torque rise, and which can rotate smoothly suppressing faults, such as seizing and flaking. SOLUTION: The sealed ball bearing 14 keeps an internal space 25, in which rolling elements are arranged, sealed by seal members 31, 32 provided on both sides. The seal lip 37 of one seal member 31 makes contact with the inner wall surface 35a of a seal groove 36. The seal lip 38 of the other seal member 32 makes contact with the outer wall surface 35b of the seal groove 36. The seal member 31 having the seal lip 37 which makes contact with the inner wall surface 35a of the seal groove 36 is arranged on the water-drenchable side A1, and the seal member 32 having the seal lip 38 which makes contact with the outer wall surface 35b of the seal groove 36 is arranged on the counter-drenchable side A2. COPYRIGHT: (C)2008,JPO&INPIT
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