NO. 50: 5/8" PITCH.......................................................................................................................170 NO. 60: 3/4" PITCH.......................................................................................................................170 NO. 80: 1" PITCH.............................................................................................................................172 NO. 100: 1-1/4" PITCH....................................................................................................................174 NO. 120: 1-1/2" PITCH....................................................................................................................176 NO. 140: 1-3/4" PITCH..................................................................................................................178 NO. 160: 2" PITCH.......................................................................................................................... 179 Engineering Class Sprockets . ........................................................................................... Sprocket Construction Types/Styles........................................................................................183 Standard Sprockets / Traction Wheels.....................................................................................185 Drum Style Sprockets..................................................................................................................186 Bushings, Hubs, Idlers and Chain Tensioners Taper-Lock Bushings...................................................................................................................189 Taper-Lock Weld-On Hubs..........................................................................................................193 QD Bushings..................................................................................................................................195 QD Weld-On Hubs.........................................................................................................................199 Split Taper Bushings...................................................................................................................200 Split Taper Weld-On Hubs.......................................................................................................... 203 Idler Sprockets.............................................................................................................................204 Chain Tensioners..........................................................................................................................207 Engineering Data Alterations..................................................................................................................................... 210 Sprocket Hardening.....................................................................................................................214 Sprocket Tooth Dimensions........................................................................................................215 Sprocket Pitch Diameter Constants.........................................................................................216 Sprocket Speed Ratios.................................................................................................................217 Sprocket Diameters.....................................................................................................................218 Standard Keyway and Set Screws.............................................................................................221 Taper-Lock Shallow Keyway Dimensions.....................................................................................................................222 QD Shallow Keyway Dimensions................................................................................................223 Maintenance Checklist................................................................................................................224 Safety Warning..............................................................................................................................225 Other Sprocket Considerations..................................................................................................226 Terms and Conditions of Sale.................................................................................................... 228
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