STIHL sprocket wheels: move the chain in the right direction

STIHL sprocket wheels are made of wear-resisting steel and are designed to transmit the engine power to the chain with as little loss as possible. The flanks of the sprocket teeth press against the noses of the drive links and keep the chain moving.

Hardening process

Hardening process

Every single STIHL sprocket wheel is martensitically hardened in a hardening furnace. This production step improves the wear-resistance and extends the service life of these parts.