“DSR” Hubs – for READY SPROCKET HUB TYPE DSR assembly with “AR” plate sprockets to create double-single of compound sprockets. Finish bore hubs have standard keyway and 2 setscrews.

Ready Sprockets are an assortment of sprockets and hubs drilled and tapped for basic, convenient assembly with regular hex head cap screws. For No. 35 through No. 100 Chain, with stock finished bore hubs to accommodate shaft sizes through 2-3/4″ diameter, and also a variety of square, hex, spline, and tapered key bores.