De quoi est fait vilebrequin
A shaft with cranks that turns the stroke of the pistons into rotation.
- Roulement à billes — a pour partie. The main journals of the shaft are bearings (in combustion engines usually plain bearings).
- Torque — utilise. It turns the stroke of the pistons into torque.
- Steel — est fait de. A crankshaft is forged from steel.