20B-1 simplex Taper-Lock sprockets

20B-1 Taper-Lock sprockets are simplex sprockets for 20B-1 chain of 1 1/4" (31.75 mm) pitch to DIN 8187 / ISO 606, mounted on the shaft using a tapered taper bush.

20B-1 simplex Taper-Lock sprockets - servicing in a few minutes

You fit a heavy sprocket without machining the bore, and during servicing you remove it from the shaft in a few minutes. A driving sprocket with hardened teeth keeps its tooth profile longer under high forces, and large grey cast iron driven sprockets are rigid and cheaper to produce.

20B-1 taper bush sprockets - in C45 steel, hardened and in grey cast iron

20B-1 simplex sprockets in C45 steel, also with hardened teeth, and large grey cast iron sprockets. The bush seat size is given in the name of each sprocket.

Lubricating 20B chain - customer questions about 20B-1 Taper-Lock sprockets

How should chain of this size be lubricated?

Heavy, slow-running drives are most often lubricated manually or by drip, with oil applied to the gaps between the plates. Regular lubrication extends the life of the chain and the sprocket teeth.