Crankshaft
Transforming the reciprocating motion of the pistons into rotational motion, the crankshaft is a vital part of the engine. Yamaha crankshafts offer high performance at low cost.

Crankshaft
Heat Treatment
Gas soft-nitriding is used to apply nitrogen to the surface of medium- and high-carbon steel alloy, significantly improving fatigue strength and resistance to wear. The use of a continuous furnace also reduces the cost of the treatment.
Product category | Motorcycles/Outboard Motors/Automobiles and Others |
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Forging method/ heat treatment |
Gas soft-nitriding |
Material | S45C or equivalent |
Used for | Engines |