| Bearing type 轴承型号 | Boundary Dimensions（mm）外形尺寸 | ||
|---|---|---|---|
| d 内径 | D 外径 | B 内圈 宽度 | |
| NNU 4160 M/W33 | 300 | 500 | 200 |
| NNU 4164 F | 320 | 540 | 218 |
| NNU 4164 K30F | 320 | 540 | 218 |
| NNU 4168 K30M/W33 | 340 | 580 | 243 |
| NNU 4168 M/W33 | 340 | 580 | 243 |
| NNU 4172 K30M | 360 | 600 | 243 |
| NNU 4172 M | 360 | 600 | 243 |
| NNU 4176 K30M | 380 | 620 | 243 |
| NNU 4176 M | 380 | 620 | 243 |
| NNU 4180 K30M/W33 | 400 | 650 | 250 |
| NNU 4180 M/W33 | 400 | 650 | 250 |
| NNU 4184/316275 | 420 | 700 | 280 |
| NNU 4188 K30M/W33 | 440 | 720 | 280 |
| NNU 4192 K30M | 460 | 760 | 300 |
| NNU 4192 M | 460 | 760 | 300 |
| NNU 4196 K30M/W33 | 480 | 790 | 308 |
| NNU 4196 M/W33 | 480 | 790 | 308 |
| NNU 4880 K/W33 | 400 | 500 | 100 |
| NNU 4880/HB1W33 | 400 | 500 | 100 |
| NNU 4888 KM/W33 | 440 | 540 | 100 |
| NNU 4888 M/W33 | 440 | 540 | 100 |
| NNU 49/500 B/SPW33X | 500 | 670 | 170 |
| NNU 49/500 BK/SPW33X | 500 | 670 | 170 |
| NNU 49/600 B/SPW33X | 600 | 800 | 200 |
| NNU 49/600 BK/SPW33X | 600 | 800 | 200 |
| NNU 49/670 B/SPW33X | 670 | 900 | 230 |
| NNU 49/670 BK/SPW33X | 670 | 900 | 230 |
| NNU 4920 B/SPW33 | 100 | 140 | 40 |
| NNU 4920 BK/SPW33 | 100 | 140 | 40 |
| NNU 4921 B/SPW33 | 105 | 145 | 40 |
