| 474 / | HD | ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS |
| 166 | DF | FRICTION DRIVE PULLEY OR GUIDE ROLL {11} |
| 174 | DF | .~ Pulley or guide roll including circumferential belt-receiving groove {4} |
| 176 | ![]() | .~.~ Groove formed by multiple, abutting, circumferentially connected members |