GH27B Cast Iron Change Gear 1/4" ID Its proven modular design has

Its proven modular design has set the industry standard for performance and is the most imitated product in today's worm gear speed reducer market

Bearing insert with 2 set screws has longer inner race for added load support

Step Down Adapters are ideal for making the shaft smaller

The pressure plate retracts against torque springs by magnetic force when the magnet is energized

GH27B Cast Iron Change Gear 1/4" ID Its proven modular design hasBoston 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