Steel 78A13 Sprocket 6B QD Bushed Pulleys Something that sets this 2040B17

Something that sets this 2040B17 sprocket apart from others is that it is Black Oxide Finished

This 40BS25 sprocket featured a 1-1/8" finished bore with a key-way and two set screws

Maximum Bore: 1-3/4"

Dynamic Load Rating: 18440 LBS

Steel 78A13 Sprocket 6B QD Bushed Pulleys Something that sets this 2040B17This 78A13 sprocket is a 13 tooth steel construction A Plate style sprocket. This sprocket is in the 78 series of engineer class sprockets. It can be supplied with a stock plain bore, finished bore with key way and set screws, or as an idler sprocket configuration. This sprocket will work with chain sizes H78, H74, H79, 188, R588, R778, 87R, IS881, 81X, 81XH, 81XHH 81XHD, 488, SS188, C188, and 882. 78A13 Dimensions Tooth Count: 13 Style: A Pitch