3SR21-IDLER
Idler sprockets are manufactured to internationally recognised standards DIN8187-ISO/R 606 and are produced from C45 steel UNI EN 10083-1 having a minimum strength of 600 N/mm 2. Conveniently stocked with an integral ball bearing fitted (dimension 'D' for bore size).Available from stock to suit British standard roller chains from 05B (8mm pitch) up to 20B (1-1/4" pitch) sizes in Simplex (single) row of teeth.
