16B-3 triplex Taper-Lock sprockets

16B-3 Taper-Lock sprockets are triplex sprockets for 16B-3 chain of 1" (25.4 mm) pitch to DIN 8187 / ISO 606. They are used in the heaviest drives, where even a duplex chain does not provide enough load capacity.

16B-3 triplex Taper-Lock sprockets transmit high torque

A massive triplex sprocket can be mounted on the shaft without machining, and a Taper-Lock seat sized to the sprocket reliably transmits high torque. Replacement needs no puller or heating, which shortens machine downtime. You can choose steel sprockets, selected ones with hardened teeth, and large cast iron sprockets.

16B-3 sprockets in C45 steel and grey cast iron with a bush seat

16B-3 triplex sprockets in C45 steel, selected ones also with hardened teeth, and large grey cast iron sprockets.

Safe fitting of a heavy sprocket - questions about 16B-3 sprockets

How do I safely mount a heavy sprocket on the shaft?

Assemble the sprocket with the bush before sliding it onto the shaft and do not fully tighten the screws until the sprocket is aligned with the chain. For large sprockets it is worth using a hoist or sling.