GH81A 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

Porous flanged bronze bearing is press-fit in sturdy zinc die cast sphere with felt strip for lubrication

Click here for spec sheet: SBPA Spec Sheet

Click here for spec sheets: CUCTF Spec Sheet

Click here for spec sheets: UCFCF Spec Sheet

Traditional cost effective rigid coupling design

Type: Roll end

Click here for spec sheets: SUCTFB Spec Sheet

Material: Delrin

All Boston Gear change gears are manufactured with a double key to accept the compound steel bushings that connect two gears together

ISO Certificate

• Double C-Face

Straight tooth Miter Gears are cut with a generated “Coniflex” tooth form providing increased life and quieter operating conditions