In-Line Gearboxes

Ondrives.US offers a variety of In-line gearboxes to suit varied applications. All our gearboxes are precision built and offer reliable service. Customization is available on these in-line gearboxes.

Our engineers have developed a White Paper “10 Points to consider to get the gearbox you need” to assist you in the selection of the most appropriate gearbox for your application.

“Inertia and the use of inertia figures” gives you an example and a formula for dealing with Inertia in gearbox selection.

Spur Inline PlanetarySpur In-line Gearboxes

This range of spur gear in-line planetary gearboxes is compact and lightweight. We offer a selection of gearboxes for direct mounting to motors or for shaft coupling. Ratios are available from 2:1 to 625:1 and torques range from 0.13Nm to 90Nm.
  • Input Speed: to 4,000 rpm
  • Machined aluminum block housing
  • Dual ball bearings on all shafts

Encoder, Low BacklashEncoder, Low Backlash In-line Gearboxes

These compact, low backlash and lightweight in-line gearboxes are designed for Encoder applications. They have a very low moment of Inertia at the input shaft and are rated for input speeds up to 3000 rpm. A wide range of ratios are available from 4.96:1 to 3600:1 in two frame sizes. Syncro cleats for use on these gearboxes are available from stock.
  • Output Torque 1 oz-inchesCat Component Clamps
  • Backlash 15 arc-minutes at any ratio
  • Ratios 4.96:1 to 3600:1
  • Input Speed to 3,000 rpm
  • Diameters 1-1/16” or 1-3/4”
  • Aluminum housing, black anodized
  • Ball bearings
  • Gears and shafts 303 Stainless Steel

Inline Low Backlash TaperIn-line Low Backlash Taper Gearboxes

Ondrives.US taper gearboxes are in-line planetary gear reduction boxes with backlash equal to or better than 8 arc/min. These in-line gearboxes were designed for tight space applications and are available either as a shaft input or mounted to a 24v DC motor.
  • Low Backlash ≤8 arc/min at input
  • Slim design
  • Shaft input or with mounted motor
  • Ratios from 2:1 to 16:1
  • Output torques from 1.14Nm to 12.7Nm

Epicyclic ServoEpicyclic (Planetary) Servo Gearboxes         

Ondrives.US has a range of Internal Epicyclic Servo Reducers that are extremely rugged and compact. They have fully machined housings in aluminum or steel and are supplied with ball bearings throughout. These in-line gearboxes have flexible motor mounting options and deliver output torques up to 380Nm. Ratios are available from 3:1 to 36:1
  • Low Backlash ≤30 arc/min at input
  • Input speed to 3,000 rpm
  • Machined aluminum block housing
  • Dual ball bearings on all shafts
  • Ratios from 3:1 to 36:1
  • Output torques 380Nm

Speed Increaser

Low ratio Encoder and Low Backlash In-line Planetary Gear Reducers can be used as speed increasers.

Contact Ondrives.US application engineers to discuss your application

Check out our Parallel shaft gear reducers

The Ondrives.US Advantage:       30 years of Unparalleled Quality

  • Greased for life
  • Input Speed to 4,000 rpm
  • Ratios to 3600:1
  • Modifications available
  • Fully machined from block housings
  • Ball Bearings

We have a broad selection of Misalignment Shaft Couplings in inch and metric bore sizes.

Inch and metric Precision Ground Shafts are available from stock.