12TR21 (24B3-21) 1.1/2" Pitch Steel Pilot Bore Triplex Sprocket
Pilot Bore sprockets are manufactured to internationally recognised standards, DIN8187-ISO/R 606 and are produced from C45 steel. They have a black phosphated finish to increase corrosion resistance so extending the sprockets working life. Conveniently stocked with a minimum pilot bore (D) they can be machined to suit any suitable mounting requirement.
Available from stock to suit British standard roller chain from 04B (6mm pitch) up to 32B (2" pitch) sizes in Simplex (single), Duplex (double) & Triplex (treble) rows of teeth.