GH84A 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

They are available in plastic

Click here for spec sheet: SALP Spec Sheet

Heavy guage one-piece housing has rust proof plated finish

Click here for spec sheets: SNA Spec Sheet

Click here for spec sheet: SAPL Spec Sheet

Max V Value: 300 fpm

The different styles offered include spur

non-intersecting shafts

Center Distance: 3

Click here for spec sheets: BUCTFB Spec Sheet

the SNATPA has an eccentric locking bearing insert