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Helical Gears (Inch)

Helical cut gears are similar to spur gears with their teeth cut at an angle. The most popular helical gear design is 45 degrees. Helical cut gears can have a right hand or a left-hand gear helix. When 45° helical gears of the opposite hand operate together they will turn parallel shafts in opposite rotation. Helical gears of the same hand driveshafts at right angles. Ondrives.US has an inch or metric helical gears available over a broad range of pitch, tooth, material and hub styles. We also carry a range of Crossed Axis helical gearboxesContact us for assistance in selecting helical gears for your application.


In parallel shaft applications, the advantage of the helical gear design over spur gears is improved smoothness, with less noise since the angled teeth engage more gradually and more than one tooth is in mesh at any time. The disadvantage of helical gear applications in parallel drives is the resultant thrust along the axis of the gear. This can be mitigated by the use of thrust bearings. The disadvantage of helical gears in right-angle drives is increased sliding friction between the mating teeth. This can be mitigated by the use of proper lubricant.

Custom Helical Gears Manufactured to Your Exact Specifications 

At Ondrives.US, we can assist with designs, modifications, prototypes, and complete production of custom drive components and gears for any application. If your project specifications require custom mechanical components, our engineering team can produce parts and components that match your drawings and meet your performance needs.


The Ondrives.US Advantage: You can rely on our helical gear experience

  • Helical gears for Instrumentation, Servo Drives, Encoders or Power Transmission
  • Inch or Metric helical gears
  • 30 plus years of experience in manufacturing gears
  • Custom gearbox helical gears made in almost any material

Mount your gears on an Ondrives.US Precision Ground Shaft, available from stock.