GB43B Cast Iron Change Gear 28 Teeth Movement is limited to a

Movement is limited to a spring loaded pressure plate

and web with spokes

quieter operation

Spring-lid oil cap can be positioned 4 ways

a spring loaded pressure plate (magnet armature) presses against the rotating discs

GB43B Cast Iron Change Gear 28 Teeth Movement is limited to aBoston 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