28B-2 duplex plate sprockets

28B-2 plate sprockets have two tooth rims and work with duplex 28B-2 chain of 1 3/4" (44.45 mm) pitch to DIN 8187 / ISO 606. They are used when a simplex chain is not enough and the sprocket diameter must stay the same.

28B-2 duplex plate wheels - more power without enlarging the sprocket

The second chain strand increases the power transmitted by the drive without enlarging the sprocket. A plate wheel without a hub lets you adapt the mounting to the shaft, flange or drum, and replace only the rim when it wears. Standard compliance means the sprocket works with any 28B-2 chain of this standard.

28B-2 plate sprockets in C45 steel with rim spacing to suit the chain

28B-2 duplex plate wheels in C45 steel in a wide choice of tooth counts. The tooth rim spacing matches the strand spacing of 28B-2 chain, and the dimensions of each plate wheel are given on the product page.

How to recognise 28B-2 chain - frequently asked questions about plate wheels

How do I check whether the machine runs 28B-2 chain?

Measure the distance between the centres of adjacent pins - on 28B chain it is 44.45 mm - and count the rows of rollers. The designation is usually also stamped on the chain plates.