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250600 SKU No.
40 mm Bore
12B55 ISO 04B-1 Sprocket 55 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)
107.8 mm OD (Approx) (de)
62 mm Hub Dia. (dn)
18 mm (A)
055 Teeth
Steel 40 mm H8 bore , 12X3.3 keyway M10 screw hole over keyway and at 90°
1.1 kg