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Taper Lock 1610 Bushed Metric Sprocket
For ISO 08B-1 Roller Chain
21 Teeth
90.6 mm Outside Diameter(de)
85.22 mm Pitch Diameter(dp)
71 mm Hub Diameter(dm)
25 mm Width(A)
7 mm Tooth Width(B1)
Material C1045 Steel Form 1, 3/8inchx16 tpi Threads