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| 轴承现行代号 | 轴承曾用代号 | 外形尺寸（mm） | 重量kg | ||
| d | D | B | |||
| 21304CTN1 | 20 | 52 | 15 | 0.162 | |
| 21304CA | 53304H | 20 | 52 | 15 | 0.173 |
| 21305CA | 53305H | 25 | 62 | 17 | 0.268 |
| 21306CA | 53306H | 30 | 72 | 19 | 0.4056 |
| 21307CA | 53307H | 35 | 80 | 21 | 0.5319 |
| 21308C | 53308 | 40 | 90 | 23 | 0.71 |
| 21308CK | 153308 | 40 | 90 | 23 | |
| 21308CA/W33 | 40 | 90 | 23 | ||
| 21309C | 53309 | 45 | 100 | 25 | 0.95 |
| 21309CA | 53309H | 45 | 100 | 25 | |
| 21309CK | 153309 | 45 | 100 | 25 | 0.95 |
| 21309CA/W33 | 45 | 100 | 25 | ||
| 21310C | 53310 | 50 | 110 | 27 | 1.275 |
| 2l310CA | 53310H | 50 | 110 | 27 | |
| 21310CA/W33 | 50 | 110 | 27 | ||
| 2l311C | 53311 | 55 | 120 | 29 | 1.625 |
| 21311CA | 53311H | 55 | 120 | 29 | |
| 21311CA/W33 | 55 | 120 | 29 | ||
| 21312 | 53312 | 60 | 130 | 31 | 2.2 |
| 21312C | 53312 | 60 | 130 | 31 | 1.95 |
| 21312CA | 3312H | 60 | 130 | 31 | |
| 21312CK | 53312 | 60 | 130 | 31 | |
| 21312CA/W33 | 60 | 130 | 31 | ||
| 21312/VBW33 | 6O | 130 | 46 | ||
| 21313 | 3313 | 65 | 140 | 33 | 2.58 |
| 21313C | 53313 | 65 | 140 | 33 | 2.45 |
| 21313CA | 65 | 140 | 33 | ||
| 21313CA/W33 | 65 | 140 | 33 | ||
| 21314 | 3314 | 70 | 150 | 35 | 3.01 |
| 21314C | 53314 | 70 | 150 | 35 | 3.06 |
| 21314CA | 53314 | 70 | 150 | 35 | |
| 21314CK | 153314 | 70 | 150 | 35 | |
| 21314/C3 | 5G3314 | 70 | 150 | 35 | 3.01 |
| 21314CA/W33 | 70 | 150 | 35 | ||
| 21315C | 53315 | 75 | 160 | 37 | 3.55 |
| 21315CA | 53315HK | 75 | 160 | 37 | 3.82 |
| 21315CA/W33 | 75 | 160 | 37 | ||
| 21316C | 53316 | 8O | 170 | 39 | 4.2 |
| 21316CA | 53316HK | 8O | 170 | 39 | 4.58 |
| 21316CAK | 153316HK | 8O | 170 | 39 | 4.52 |
| 21316CA/W33 | 80 | 170 | 39 | ||
| 21316CAK/W33 | 153616H | 80 | 170 | 39 | 6.31 |
| 21317C | 53317 | 85 | 180 | 41 | 5 |
| 21317CA | 53317H | 85 | 180 | 41 | |
| 21317CK | 153317 | 85 | 180 | 41 | |
| 21317CA/W33 | 85 | 180 | 41 | ||
| 21317C/C3W33 | 3633317Y | 85 | 180 | 41 | 5 |
| 21318 | 3318 | 90 | 190 | 43 | 5.88 |
| 21318C | 53318 | 90 | 190 | 43 | 5.8 |
| 21318CA | 90 | 190 | 43 | 6.063 | |
| 21318CK | 153318 | 90 | 190 | 43 | |
| 21318/W33 | 3318K | 90 | 190 | 43 | 5.82 |
| 21318CA/W33 | 90 | 190 | 43 | ||
| 21319C | 53319 | 95 | 200 | 45 | 7.15 |
| 21319CA | 53319H | 95 | 200 | 45 | |
| 21319CA/W33 | 95 | 200 | 45 | ||
| 21320C | 53320 | 100 | 215 | 47 | 8.8 |
| 21320CA | 53320H | 100 | 215 | 47 | |
| 21320CA/W33 | 100 | 215 | 47 | ||
| 21321CA | 105 | 225 | 49 | 9.844 | |
| 21322C | 53322 | 110 | 240 | 50 | 12 |
| 21322CA | 110 | 240 | 50 | ||
| 21322CK | 153322 | 110 | 240 | 50 | |
| 21322CA/W33 | 110 | 240 | 50 | ||
