To provide a roller bearing which prevents a foreign matter from being invaded from the exterior into the bearing, and also prevents a lubricating oil such as a grease or the like in the interior of the bearing from being scattered.
The roller bearing comprises a rolling element, a retainer and a sealing structure 20 inserted between an inner race and an outer race. In this bearing, the structure 20 includes a first support member 21 disposed on the inner peripheral surface of the outer race near the axial end, a second support member 22 disposed on the outer peripheral surface of the inner race near the axial end, and a sealing member 23 for sealing between the first member 21 and the second member 22. The sealing member 23 has at least triples 23B, 23C and 23D on a route directed from the inner space of the bearing toward the outward of the bearing between the first member 21 and the second member 22.
| JPH08210363 | ROLLING BEARING AND SEALING DEVICE FOR IT |
| JPS61256022 | ROLL SHAFT BOX |
| JP2003509635 | INDUSTRIAL APPLICABILITY Ball bearings including ceramic balls and steel rings |
MORITA YASUSHI
SATO YOSHITAKA
