轴承型号:1621-2RS 1621ZZ
轴承内径：12.7mm
轴承外径：34.925mm
轴承宽度：11.112mm
重量：0.049kg
性能与普通深沟球轴承相同，只是尺寸为英制尺寸
深沟球轴承是***具代表性的滚动轴承，用途广泛。适用于高转速甚***高转速的运行，而且非常耐用，无需经常维护。该类轴承摩擦系数小，极限转速高， 结构简单，制造成本低，易达到较高制造精度。 尺寸范围与形式变化多样，应用在精密仪表、低噪音电机、汽车、摩托车及一般机械等行业，是机械工业中使用***为广泛的一类轴承。主要承受径向负荷，也可承受一定量的轴向负荷。
| Bearing No. | Boundary dimensi*** | |||||
| d | D | B | ||||
| mm | in | mm | in | mm | in | |
| RMS 4 | 12.700 | 1/2 | 41.275 | 1 5/8 | 15.875 | 5/8 |
| RMS 5 | 15.875 | 5/8 | 46.038 | 1 13/16 | 15.875 | 5/8 |
| RMS 6 | 19.050 | 3/4 | 50.800 | 2 | 17.462 | 11/16 |
| RMS 7 | 22.225 | 7/8 | 57.150 | 2 1/4 | 17.462 | 11/16 |
| RMS 8 | 25.400 | 1 | 63.500 | 2 1/2 | 19.050 | 3/4 |
| RMS 9 | 28.575 | 1 1/8 | 71.438 | 2 13/16 | 20.638 | 13/16 |
| RMS 10 | 31.750 | 1 1/4 | 79.375 | 3 1/8 | 22.225 | 7/8 |
| RMS 11 | 34.925 | 1 3/8 | 88.900 | 3 1/2 | 22.225 | 7/8 |
| RMS 12 | 38.100 | 1 1/2 | 95.250 | 3 3/4 | 23.812 | 15/16 |
| RMS 13 | 41.275 | 1 5/8 | 101.600 | 4 | 23.812 | 15/16 |
| RMS 14 | 44.450 | 1 3/4 | 107.950 | 4 1/4 | 26.988 | 1 1/16 |
| RMS 15 | 47.625 | 1 7/8 | 114.300 | 4 1/2 | 26.988 | 1 1/16 |
| RMS 16 | 50.800 | 2 | 114.300 | 4 1/2 | 26.988 | 1 1/16 |
| RMS 18 | 57.150 | 127.000 | 31.750 | |||
| RMS 20 | 63.500 | 139.500 | 31.750 | |||
| RMS 22 | 69.850 | 158.800 | 34.930 | |||
| RMS 24 | 76.200 | 177.800 | 39.680 | |||
| RMS 26 | 82.550 | 190.500 | 39.680 | |||