18 teeth

Duplex| d: 50.80mm
Duplex| Dh: 177.80mm
Duplex| L: 120.60mm
Pitch | Via Dp: 292.55mm
Outside | Dia Do: 318.51mm
Bore | d: 38.10mm
Hub | Dh: 177.80mm
Hub | L: 69.80mm