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774785 SKU No.
25 mm Bore
12B57 ISO 04B-1 Sprocket 57 Teeth ISO No. 04B Steel Hub Sprocket
For Ametric® No. 12 Single Strand Chain with
6mm Pitch
2.8mm Roller Width
4mm Roller Dia.
2.5mm (B1)
111.6 mm OD (Approx) (de)
62 mm Hub Dia. (dn)
18 mm (A)
057 Teeth
Steel 25 mm H8 bore , 8x3.3 keyway M6 screw hole over keyway and at 90°
1.27 kg