GD104A Cast Iron Change GearBoston 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

Click here for spec sheet: SAF Spec Sheet

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

IP69K Flyer

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self-centering design for use in through-bored components with extremely high torque and/or bending requirements

Click here for spec sheets: UCFC Spec Sheet

Click here for spec sheet: SAFL Spec Sheet

Boston Gear manufactures both 14 1/2° and 20° PA

quieter operation

oil resistant rubber liner which corrects up to 2° misalignment while reducing vibration & noise

Release is instantaneous