NA20B-3/8 Steel Spur GearBoston Gear spur gears are designed to transmit motion and power between parallel shafts. The different styles offered include spur, gear rack, pinion wire, stem pinions, and internal gears, and most come with a selection of bore diameters, keyways, and setscrews to accommodate a wide variety of application requirements. They are available in plastic, non metallic, brass, steel, and cast iron and are manufactured in a variety of styles, including

Click here for spec sheets: CUCTPA Spec Sheet

a same-hand helix angles must be used

maintaining like-new output for thousands of hours of use

Traditional cost effective rigid coupling design provides torque transmission and alignment

Click here for spec sheet: UC Spec Sheet

The new Stainless Steel 700 Series maintains the same critical dimensions as its trusted cast iron sister series and utilizes the same gearing and shafts for easy field retrofitting and backwards compatibility

High starting torque

Boston Gear’s stock helical gears are manufactured in both right- and left-handed configurations with an industry standard 45° helix angle to transmit motion and power between non-intersecting shafts that are parallel or at 90° to each other

Material: Steel

Spiral Angle: 35 Degrees

Tolerates -60° to 180° F

Housings are made of aluminum alloy with all mounting surfaces precision machined