| 摘要 |
PROBLEM TO BE SOLVED: To perform a lifetime extension by preventing the invasion of a foreign matter into an interior and the leakage of a lubricant with neither gap between a seal groove and a lip even if a relative positional deviation occurs at an outer member and an inner member nor wear of the lip due to an excessive contact pressure. SOLUTION: When an inner ring 2 is position deviated by (Δ) in an (X) direction to an outer ring 1, an outer ring side split seal 11 keeps intact. On the other hand, an inner ring side divided seal 21 can be displaced by following to the positional change of the inner ring 2. When the position of the inner ring 2 changes, a rib 22 for sealing, a protrusion 23 and an engaging groove 13 cooperates to perform a sealing operation to interrupt the interior of a bearing and the exterior of the bearing. The invasion of the foreign matter into the interior of the bearing and the flow-out of the lubricant sealed in the interior of the bearing are prevented. COPYRIGHT: (C)2006,JPO&NCIPI
|
