12 teeth

Duplex| d: 12.70mm
Duplex| Dh: 39.60mm
Duplex| L: 38.10mm
Triplex| d: 12.70mm
Triplex| Dh: 39.60mm
Triplex| L: 53.90mm
Pitch | Via Dp: 49.07mm
Outside | Dia Do: 55.11mm
Bore | d: 12.70mm
Hub | Dh: 39.60mm
Hub | L: 22.20mm