20B-2 duplex Taper-Lock sprockets

20B-2 Taper-Lock sprockets are duplex sprockets for 20B-2 chain of 1 1/4" (31.75 mm) pitch to DIN 8187 / ISO 606. They transmit very high forces in heavy conveyors and industrial machinery.

20B-2 duplex Taper-Lock sprockets - shorter downtime when replacing

The Taper-Lock seat lets you fit a massive sprocket without machining and remove it without a puller, which significantly shortens downtime. Selected sprockets have hardened teeth, which cope better with high loads, and we make large driven sprockets in grey cast iron, which provides rigidity and dampens vibration.

20B-2 taper bush sprockets with hardened teeth and in grey cast iron

20B-2 duplex sprockets with hardened teeth and large grey cast iron sprockets. Bushes for these sprockets can be found in the Bushes category, in the Taper-Lock group.

When to replace a 20B-2 sprocket together with the chain - questions and answers

When should the sprocket be replaced together with the chain?

When the teeth are clearly pointed or have worn flanks. A worn sprocket accelerates the elongation of a new chain and can cause the links to jump.