GB45B Cast Iron Change Gear 3.937" ID they are ideally suited for

they are ideally suited for applications where normal lubrication is difficult or impossible to provide

Ratio: 1:1

Greater load capacity compared to SUCSFCS

Click here for spec sheet: UCPL Spec Sheet

Includes 2 set screws

GB45B Cast Iron Change Gear 3.937" ID they are ideally suited forBoston 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