Boston 30224526 30408 100-2 O/L STEEL ROLLER CHAIN PART

Boston Gear change gears are used primarily on machine tools to provide different cutting speeds while using a constant speed input. All Boston Gear change gears are manufactured with a double key to accept the compound steel bushings that connect two gears together, allowing them to spin on an intermediate shaft. The change gears we stock range from 20-tooth through 128-tooth gears, in one tooth increments, depending upon the diametrical pitch, for a nearly infinite number of ratio possibilities. Be sure to ask for the Boston Gear compound steel bushings designed specifically for use with these gears.Product FamilyChange GearsDiametrical Pitch20Product DescriptionChange Gear, 20 DP, 14 1/2 PA, 100 Teeth, Cast IronAltra Master No.30216308MaterialCast IronBore Size0.625UPC781711109007Face Width0.375Family Id30,062Weight1.181KWY/Setscrew/OtherW/ Double KWY OnlyPitch Diameter5.000Outside Diameter5.100No Of Teeth100Hub Diameter1.690Torque Rating89.5 @ 600 RPM MAXUnit Of MeasureEnglish