المواصفات
| Rubber Ring Diameter | 89, 108, 133, 127, 139, 152, 159, 190, 219, 114, 165 |
| Shell Diameter (mm) | 63.5, 76.1, 88.9, 101.6, 108, 114.3, 127, 133, 139.7, 152.4, 159, 168.3, 193.7, 219.1 |
| Shell Thickness (mm) | 3.65, 4.05, 4.5, 4.85, 5.4, 6.3 |
| Shaft End Type | A, B, C |
| Roller Length (mm) | 200, 250, 315, 380, 465, 530, 600, 750, 950, 1150 |