R” Hubs – For Assembly With “AR” Plate Sprockets
Round bore hubs have READY SPROCKET HUB – TYPE R regular keyway and 2 setscrews. Square, Hex and Splined bore hubs have set screws only.
Ready Sprockets are a variety of sprockets and hubs drilled and tapped for simple, convenient assembly with standard hex head cap screws. For No. 35 through No. 100 Chain, with share finished bore hubs to accommodate shaft sizes through 2-3/4″ diameter, and also a variety of sq ., hex, spline, and tapered important bores.