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28B-3 triplex hub sprockets

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28B-3 triplex hub sprockets

28B-3 hub sprockets are sprockets with three tooth rims for triplex 28B-3 chain of 1 3/4" (44.45 mm) pitch to DIN 8187 / ISO 606. They are among the largest hub sprockets in our range and run in the drives of rotary kilns, mills and large conveyors.

28B-3 triplex sprockets - huge load capacity with a limited diameter

Three strands of 28B chain mean huge load capacity with a limited sprocket diameter. A hub sprocket only needs to be machined for the shaft - no welding or making a mounting. The tall hub provides a long keyway and stable seating of the very wide tooth rim.

28B-3 hub sprockets in C45 steel and grey cast iron

28B-3 triplex hub sprockets in C45 steel with unhardened teeth; one of the sprockets is also available in grey cast iron. Dimensions and weight are given on the product page.

Frequently asked questions about 28B-3 triplex sprockets

What should I look out for when replacing a 28B-3 sprocket?

Check the condition of the chain and the other sprocket - a worn chain quickly destroys new teeth. After installation, check the sprocket alignment and chain tension.

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