| 摘要 |
<p>1,211,252. Rolling bearings. NORTH AMERICAN ROCKWELL CORP. 3 Jan., 1968 [26 April, 1967], No. 11520/70. Divided out of 1,211,251. Heading F2A. A ball bearing has one race 62 formed with relatively thick annular portions 69 adjacent each end and a thin portion between the two ends on which is provided a raceway for the balls 61, a rigid annular member 67 being disposed axially between and abutting the portions 69 and coaxial with and radially spaced from the thin portion of the race, the thin portion of the race being ;able to deflect elastically under load.</p> |
