GH74A 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 sheets: CUCNPT Spec Sheet

Note: This is the spec sheet for the version with cast iron housing and mild steel bearing insert

They are available in plastic

pinion wire

Output Bore/Shaft Diameter: 1

Click here for spec sheets: BUCNPF Spec Sheet

Click here for spec sheet: SARFB Spec Sheet

Note: This is the spec sheet for the All Stainless version

Self-lubricating ideal for wet or harsh environments where wash down is required

Click here for spec sheets: SUCSTX Spec Sheet

• Horizontal/Vertical Mount

Be sure to ask for the Boston Gear compound steel bushings designed specifically for use with these gears