Bearing Number | Boundary dimensions | |||
d (mm) | d (in) | D (mm) | D (in) | |
NU304E | 20 | 0.788 | 52 | 2.049 | NU305E | 25 | 0.985 | 62 | 2.443 |
NU306E | 30 | 1.182 | 72 | 2.837 | NU307E | 35 | 1.379 | 80 | 3.152 |
NU308 | 40 | 1.576 | 90 | 3.546 | NU308E | 40 | 1.576 | 90 | 3.546 |
NU309 | 45 | 1.773 | 100 | 3.94 | NU309E | 45 | 1.773 | 100 | 3.94 |
NU310 | 50 | 1.97 | 110 | 4.334 | NU310E | 50 | 1.97 | 110 | 4.334 |
NU311 | 55 | 2.167 | 120 | 4.728 | NU311E | 55 | 2.167 | 120 | 4.728 |