06B (3/8") hardened hub sprockets

06B hardened hub sprockets are sprockets for 06B roller chain of 3/8" (9.525 mm) pitch to DIN 8187 / ISO 606 with induction-hardened teeth. 06B chain often runs at high speeds - and that is exactly where hard teeth significantly extend sprocket life.

06B hardened sprockets - a small driving sprocket that lasts longer

A small driving sprocket in a high-speed drive makes a great many revolutions, and it is the first part to wear. Teeth hardened to 45-55 HRC wear much more slowly, so you stop the machine for replacement less often. The C45 steel hub remains soft - you bore the hole out for your shaft without special tools.

3/8 inch hardened sprockets: simplex and duplex versions

06B-1 simplex and 06B-2 duplex sprockets with hardened teeth - each version has its own subgroup. 06B sprockets with unhardened teeth and triplex versions can be found in the Hub sprockets group.

Hardened sprockets for 06B chain - customer questions

Will a hardened 06B sprocket replace a standard one without modifications?

Yes. A hardened sprocket has the same tooth profile and the same connection dimensions as a standard sprocket - it differs only in tooth hardness.

Does hardening extend chain life?

Indirectly, yes. A sprocket that keeps its tooth profile guides the rollers correctly, whereas worn, pointed teeth accelerate chain elongation.