08B-3 triplex Taper-Lock sprockets

08B-3 Taper-Lock sprockets are triplex sprockets for 08B-3 chain of 1/2" (12.7 mm) pitch to DIN 8187 / ISO 606. They are used in drives that must transmit high torque but have no room for a larger pitch.

08B-3 triplex Taper-Lock sprockets - load capacity and quiet running

Three chain strands increase load capacity, and the small pitch ensures smooth, quiet running. The Taper-Lock seat allows a heavy sprocket to be fitted without machining the bore and removed without a puller, which shortens downtime during servicing.

08B-3 sprockets in C45 steel with a tapered taper bush seat

08B-3 triplex sprockets in C45 steel with a Taper-Lock bush seat. The seat size is given in the sprocket name, and a matching bush can be found in the Bushes category, in the Taper-Lock group.

Replacing triplex chain - questions about 08B-3 Taper-Lock sprockets

Do all three chain strands have to be new?

A multi-strand chain is replaced as a whole - it is a single component. When replacing the chain it is worth checking sprocket tooth wear and, if necessary, replacing the sprocket together with the chain.