24B (1 1/2") hardened hub sprockets

24B hardened hub sprockets work with 24B roller chain of 1 1/2" (38.1 mm) pitch to DIN 8187 / ISO 606. The teeth are induction-hardened, which is why these sprockets serve as durable driving sprockets in heavy conveyors and industrial machinery.

24B hardened sprockets - longer running time between costly replacements

A large sprocket is expensive to replace - not only because of its price, but also the downtime and installation work. Teeth hardened to 45-55 HRC extend the time between replacements, while the C45 steel hub and core remain tough and easy to machine.

1 1/2 inch hardened sprockets in simplex and duplex versions

24B-1 simplex and 24B-2 duplex sprockets with hardened teeth - each version has its own subgroup. 24B sprockets with unhardened teeth can be found in the Hub sprockets group, and plate wheels - in the Plate sprockets group.

Hardened sprockets for 24B chain - customer questions

Does a 24B sprocket fit ASA 120 chain?

No. ASA 120 (24A) chain has the same pitch, but a different roller and inner width. A series sprockets can be found in the ASA sprockets group.

Will a hardened 24B sprocket fit in place of a standard one?

Yes. The dimensions of hardened sprockets match standard hub sprockets - they differ only in tooth hardness.