| 摘要 |
PROBLEM TO BE SOLVED: To provide a conical roller bearing preventing seizure of the bearing and shortening of its service life, and being easily manufactured with a simple constitution. SOLUTION: In this conical roller bearing, an inner ring 1 is mounted around a shaft of a side face at its large diameter portion 2 side, and comprises: a lubricant reservoir 4 for storing a lubricant; a plurality of oil through holes 4a formed on a peripheral edge of the lubricant reservoir 4; and an oil groove 6 for leading out the lubricant 5 of the lubricant reservoir 4 through the oil through holes 4a and supplying the same to conical rollers 10. The oil groove 6 is formed with a shortest distance in a state of radially extending on the side face 2a of the large diameter portion 2 side from the oil through holes 4, and further axially extending on an outer peripheral face 2b of the large-diameter portion 2 to the conical rollers 10, and the outer peripheral face 2b of the large diameter portion 2 is inclined so that its outer diameter is gradually increased from the side face 2a of the large-diameter portion 2 side to a conical roller 10 side. COPYRIGHT: (C)2006,JPO&NCIPI
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