17 teeth

Duplex| d: 12mm
Duplex| Dh: 40mm
Duplex| L: 30mm
Triplex| d: 12mm
Triplex| Dh: 40mm
Triplex| L: 35mm
Pitch | Via Dp: 51.83mm
Outside | Dia Do: 55.30mm
Bore | d: 10mm
Hub | Dh: 40mm
Hub | L: 28mm