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7590 SKU No.
20 mm Bore
2042B21 ISO 08B-2 Sprocket 21 Teeth ISO No. 08B-2 Steel Hub Sprocket
For Ametric® No. 2042 Double Strand Chain with
12.7mm Pitch
7.75mm Roller Width
8.51mm Roller Dia.
7mm (B1)
21mm (B2)
90.5 mm OD (Approx) (de)
70 mm Hub Dia. (dn)
40 mm (A)
021 Teeth
Steel 20 mm H8 bore , 6x2.8 keyway M6 screw hole over keyway and at 90°
0.72 kg