13 Teeth Nylon Pinion 7.5mm Diameter

The pinions have the tooth module not corrected, which means that as the number of teeth increases with each pinion, the diameter of the pinion also increases, optimising the mesh with the crowns.

The pinions are identified with the following codes:
- Item 12108 8T dia 5 mm
- Item 12109 9T dia 5.5 mm
- Item 12110 10T dia 6 mm
- Item 12111 11T dia 6.5 mm
- Item 12112 12T dia 7 mm
- Item 12113 13T dia 7.5 mm
- Item 12114 14T dia 8 mm

Each pack contains 5 pinions with the same number of teeth,
while item 12099 contains 1 pinion for each set of teeth, for a total of 7 pieces.