GB107A 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: SBPA Spec Sheet

• Flange/Foot Mounting

Center Distance: 2

Click here for spec sheets: Clamp-Lok Catalog

Click here for spec sheet: HUCPA Spec Sheet

Pressure Angle: 20 Degrees

Click here for spec sheets: CUCNPHA Spec Sheet

Click here for spec sheets: HUCNPFL Spec Sheet

Splines in crease disc life because the many con tact points between hub and discs reduce the concentration of stresses encountered with non-splined hubs having only a few contact points

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

Easily installed where major disassembly would otherwise be required

see SNA vs SUC pages for bearing insert dimensions)