| Bearing type 轴承型号 | Boundary Dimensions（mm）外形尺寸 | ||
|---|---|---|---|
| d 内径 | D 外径 | B 内圈 宽度 | |
| NU 2088 ECMA | 440 | 650 | 122 |
| K 81148 M | 240 | 300 | |
| 81248 M | 240 | 340 | 78 |
| NUP 3988 ECM | 440 | 600 | 118 |
| K 81144 M | 220 | 270 | |
| 81144 M | 220 | 270 | 37 |
| NU 2888 ECMA | 440 | 540 | 60 |
| 89444 M | 220 | 420 | 122 |
| NJ 2988 ECML | 440 | 600 | 95 |
| NJ 2988 ECM/HB1 | 440 | 600 | 95 |
| K 89444 M | 220 | 420 | |
| K 81244 M | 220 | 300 | |
| NU 1988 MA | 440 | 600 | 74 |
| NU 1088 MA | 440 | 650 | 94 |
| 81244 M | 220 | 300 | 63 |
| NU 2984 ECMA | 420 | 560 | 82 |
| 81140 M | 200 | 250 | 37 |
| K 81140 M | 200 | 250 | |
| NUP 3984 ECMA | 420 | 560 | 106 |
| K 81240 M | 200 | 280 | |
| K 89440 M | 200 | 400 | |
| NU 1084 MA | 420 | 620 | 90 |
| NU 3084 ECMA | 420 | 620 | 150 |
| 89440 M | 200 | 400 | 122 |
| NU 1884 MA | 420 | 520 | 46 |
| 81240 M | 200 | 280 | 62 |
| K 89438 M | 190 | 380 | |
| NF 3084 ECMB | 420 | 620 | 150 |
| NU 1884 MP | 420 | 520 | 46 |
| K 81138 M | 190 | 240 | |
