40 Tooth Duplex Sprockets
British Standard
1/2" x 3/8"
Steel C45, UNI7845

Tooth Radius r₃ = 13

Radius size C = 1.3

Tooth width b₁ = 7.2

Tooth width B₂ = 21.0

All dimensions in mm

Intermediate sizes & special platewheels to drawing

Standard : to DIN 8187 ISO/R 606