Model | External Diameter | Internal Diameter | Thickness |
SB40 | 92/91/90 | 69/54 | 100 |
SB43 | 95.5 | 61/75.5 | 100 |
SB50 | 121.5 | 101/81 | 117 |
SB81 | 170.5 | 114/141 | 182 |
SB81N | 165.6 | 111/136 | 182 |
SB8T | 170.5 | 119/141 | 180 |
SB121 | 190.5/190 | 133/156 | 203 |
SB131 | 202 | 139/166 | 212 |
SB151 | 214.5 | 143/176 | 234 |
GB8AT | 164.5 | 112/137 | 125 |
HB20G | 162.5 | 115/135 | 136 |
HB30G | 180.5 | 129/150 | 155 |