Gear Shafts

In many cases it is not only practical, but also advantageous to cut gear teeth on a blank that has been machined as an integrated feature of a shaft to which a gear would otherwise be assembled. Obviously, design and assembly limitations sometimes preclude this option but, when it is possible, the benefits are many. Such designs normally require fewer parts and less machining and negate any problems that could potentially be encountered during assembly. These factors typically result in lower production costs. Additionally, when the precision of a gear is important, runout of the gear pitch diameter relative to the mounting surfaces of the shaft is minimized when the gear teeth have been formed on a blank that has been machined as an integral shaft feature. This is because the gear teeth are cut while locating either directly from the shaft mounting surfaces or from other features often specified as primary datums from which these mounting surfaces are produced. This process effectively eliminates any eccentricity that could result from the assembling of separate components.

Gear Shaft Experience

Geartronics commonly produces gear shafts that incorporate spur, helical and bevel gears as well as worms for many of our customers that are used in numerous applications. Such components are made from many different materials and include various machined features such as thru holes, threaded holes, keyways, cutouts, slots and machined squares. Parts can be supplied in the hardened or unhardened condition and when required, Geartronics can also finish grind shaft bearing journals to within a .0002”/.0003” tolerance range.

Geatronics has manufactured gear shafts for customers from a number of industries, including:

  • Aerospace
  • Appliance
  • Automotive
  • Consumer Product
  • Defense
  • Food Processing
  • Hand & Power Tools
  • Industrial Equipment
  • Machine Controls
  • Medical Device & Equipment
  • Motion Control
  • Oil & Gas

Gear Shaft Materials

Geartronics has the capability of producing gear shafts from a wide range of materials, including:

Alloy Steel
Castings & Forgings
Carbon Steel
Ductile Iron
Pre-Heat Treated Steel
Stainless Steels
Tool Steel

contact us

Geartronics Incorporated
100 Chelmsford Road
North Billerica, MA 01862

Call Us: 978.663.6566

Fax: 978.667.3130