12B21

For Ametric® No. 12 Single Strand Chain with

6mm Pitch

2.8mm Roller Width

4mm Roller Diameter

2.5mm Sprocket Tooth Width (B1)

42.7 mm Outside Diameter (Approximate) (de)

25 mm Hub Diameter (dn)

8 mm Pilot (MPB) Bore +/-1mm (d1)

13 mm Total Width (A)

021 Teeth