| 摘要 |
Rolling bearing for a belt or chain tensioning roller device comprising two inner rings (3, 4), two outer rings (5, 6) and two rows of rolling elements (7, 8), each row of rolling elements (7, 8) being placed between an inner ring (3, 4) and an outer ring (5, 6). Each row of rolling elements (7, 8) is in contact via two contact zones (7a, 7b, 8a, 8b) respectively with an inner ring (3, 4) and an outer ring (5, 6), the said inner ring (3, 4) and outer ring (5, 6) having a thin wall produced by stamping of a metal sheet or of a tube. |
