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388284 SKU No.
50 mm Bore
102B21 ISO 20B-1 Sprocket 21 Teeth ISO No. 20B Steel Hub Sprocket
For Ametric® No. 102 Single Strand Chain with
31.75mm Pitch
19.56mm Roller Width
19.05mm Roller Dia.
18mm (B1)
226.5 mm OD (Approx) (de)
140 mm Hub Dia. (dn)
55 mm (A)
021 Teeth
Steel 50 mm H8 bore, 14x3.8 keyway M12 screw hole over keyway and at 90°
7.03 kg