CONSTRUCTION
A crankshaft pulley (torsional vibration damper) consists of a torsional vibration damper hub, rubber isolation element, belt pulley, plain bearing, flywheel mass, belt pulley rubber isolation element and belt pulley hub.
The torsional vibration damper hub and flywheel mass are connected by the rubber isolation element (vulcanized). Therefore, they can be rotated by a few angular degrees with respect to each other. The belt pulley hub is bolted to the front end face of the crankshaft. The torsional vibration damper reduces torsional vibrations of the crankshaft. This reduces the load on the crankshaft and the driven ancillary components.
The crankshaft pulley (torsional vibration damper) is important not only for to the smooth running of the engine, but also for the smooth and low-wear driving of the camshafts. The belt pulley is isolated by the rubber isolation element of the belt pulley hub. The rubber isolation element permits greater rotation, and reduces the remaining irregular rotation and thereby the load on the belt drive. The belt pulley is supported by the plain bearing.
| *1 | Torsional Vibration Damper Hub | *2 | Rubber Isolation Element |
| *3 | Belt Pulley | *4 | Plain Bearing |
| *5 | Flywheel Mass | *6 | Belt Pulley Rubber Isolation Element |
| *7 | Belt Pulley Hub | - | - |