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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 | T1 | |||
| 51304 | 8304 | 20 | 47 | 18 | |
| 51304/P6 | E8304 | 20 | 47 | 18 | |
| 51305 | 8305 | 25 | 52 | 18 | 0.165 |
| 51305/P5 | D8305 | 25 | 52 | 18 | |
| 51305/P6 | E8305 | 25 | 52 | 18 | |
| 51306/HV | 8306X | 30 | 60 | 16 | 0.262 |
| 51306 | 8306 | 30 | 60 | 21 | 0.262 |
| 51306/T | 30 | 60 | 21 | 0.35 | |
| 51306/TS | 30 | 60 | 21 | 0.29 | |
| 51306/P5 | D806 | 30 | 60 | 21 | |
| 51306/P6 | E8306 | 30 | 60 | 21 | |
| 51307A | 35 | 68 | 21 | ||
| 51307 | 8307 | 35 | 68 | 24 | 0.367 |
| 51307/P5 | D8307 | 35 | 68 | 24 | |
| 51307/P6 | E8307 | 35 | 68 | 24 | |
| 51307/YA6 | 35 | 68 | 24 | 0.301 | |
| 51308 | 8308 | 40 | 78 | 26 | 0.528 |
| 51308/HV | 8308X | 40 | 78 | 26 | 0.518 |
| 51308/P5 | D8308 | 40 | 78 | 26 | |
| 51308/P6 | E8308 | 40 | 78 | 26 | |
| 51309 | 8309 | 45 | 85 | 28 | 0.663 |
| 51309/YA | 8309K | 45 | 85 | 28 | 0.656 |
| 51309/HV | 8309X | 45 | 85 | 28 | 0.663 |
| 51309/P4 | D8309 | 45 | 85 | 28 | 0.66 |
| 51309/P5 | D8309 | 45 | 85 | 28 | |
| 51309/P6 | E8309 | 45 | 85 | 28 | |
| 51310 | 8310 | 50 | 95 | 31 | 0.93 |
| 51310/T | 50 | 95 | 31 | 1.32 | |
| 51310/TS | 50 | 95 | 31 | 1.1 | |
| 51310/P5 | D8310 | 50 | 95 | 31 | |
| 51310/P6 | E8310 | 50 | 95 | 31 | |
| 51311 | 8311 | 55 | 105 | 35 | 1.35 |
| 51311/P5 | D8311 | 55 | 105 | 35 | |
| 51311/P6 | E8311 | 55 | 105 | 35 | 1.33 |
| 51312 | 8312 | 60 | 110 | 35 | 1.4 |
| 51312M | 8312H | 60 | 110 | 35 | |
| 51312/P5 | D8312 | 60 | 110 | 35 | 1.44 |
| 51312/P6 | E8312 | 60 | 110 | 35 | 1.4 |
| 51313 | 8313 | 65 | 115 | 36 | 1.56 |
| 51313/P5 | D8313 | 65 | 115 | 36 | |
| 51313/P6 | E8313 | 65 | 115 | 36 | |
| 51314 | 8314 | 70 | 125 | 40 | 2.02 |
