| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a combined rolling bearing for an axle shaft which can sufficiently improve not only quake-proof impact properties but also collar-proof seizure properties, while preventing roller skews, smearing or slip scratches and conical rollers in both sides line are loaded by such combined radial and thrust loads as chiefly radial loads and axial loads and cylindrical rollers or barrel shape rollers or balls in the center line can support not only radial loads but also axial loads in order to freely rotatably bolster the axle shaft for rolling stock based on a scheme of high load capacity that loads mainly radial loads. <P>SOLUTION: Sealing three lines combined rolling bearings for the axle shaft of rolling stock comprises all-in-one type outer race 2, three single line inner races 3a, 3a, 3b, conical rollers 5, 5 in both side lines trimmed and formed meanwhile, two holders 10, 10 guided by the conical roller 5 by keeping a prescribed clearance between the conical roller 5 and the conical roller 5, cylindrical rollers 21 trimmed and formed in the center line, the outer race 2, inner races 3a, ... by keeping a prescribed clearance between the cylindrical roller 21 and the cylindrical roller 21 or one of holders 31 guided by the cylindrical roller 21, two oil throwers 11, 11 having a seal wearing function to fix to the inner race 3a, 3a both sides, and two seal members 12, 12 to fix to both sides of the outer race 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
