Nombre de dents (effet polygonal)Largeur Diamètre primitifLargeur Diamètre extérieurLargeur moyeu nominaleTailles d'alésage disponibles
pouce(s)mmpouce(s)mmpouce(s)mmRond (pouces)Carré (pouces)Rond (mm)Carré (mm)
12 (3,41%)2,3582,4611,02540
12 (3,41%)2,6662,7701,02540
12 (3,41%)3,0763,1781,02540
12 (3,41%)3,3843,4871,02540
12 (3,41%)3,7943,8961,02540
12 (3,41%)4.01024.11041,02540
12 (3,41%)4.41124.51131,02540
12 (3,41%)4,71194,81221,02540
12 (3,41%)5,11305,11311,02540
12 (3,41%)5.41375.51391,02540
12 (3,41%)5,81475,81481,02540
12 (3,41%)6.21576.21571,02540
12 (3,41%)6.51656.51651,02540
12 (3,41%)6,91756,91741,02540