Finer Power BS Cast Iron Sprocket, 12B / 57

These cast iron triplex taper lock and pilot bore sprockets suit BS (ISO 606 B series) roller chain. The range covers 8 models across 2 chain sizes, 12B and 16B, from 57 to 76 teeth.

Each taper lock model has a tapered bore that takes a taper lock bush. The bush is machined to your shaft size and keyway, and locks the sprocket on the shaft when its screws are tightened. Pitch diameter, outside diameter, hub diameter, total width and bush series come in each model.

Where this product is used

• Roller chain drives using BS chain
• Replacement sprockets for existing taper lock chain drives
• Conveyors and general machinery drives
• Drives where the sprocket needs to be removed and refitted

Features

• Taper lock hubs for a separately sold bush, plus pilot bore models
• Triplex sprocket for BS (ISO 606 B series) roller chain
• 2 chain sizes, 57 to 76 teeth
• Cast Iron construction
• Bush series for each model: 3020, 4030
• Pitch diameter, outside diameter, hub diameter and width where available

Key specifications

Sizes available

Choosing the right option

Choose the sprocket by chain size and number of teeth. The chain size must match your chain, and the tooth count sets the speed ratio. Then choose a taper lock bush of the series shown for that model, bored to your shaft diameter with a keyway. Check that the bush series covers your shaft diameter.

Dimensions are for reference.