In-Line Gearboxes

Click image to enlarge
Ondrives.US offers standard and customized in-line gearboxes to meet the needs of nearly any motion or power transfer application. Our inline gearboxes are engineered for low backlash performance. They are precision built to provide reliable service in even the most demanding operations.
Read “10 Points to Consider to Get the Gearbox You Need” for assistance in finding the best and most effective gear reducer option for your application. “Inertia and the Use of Inertia Figures” provides an example and a formula for dealing with inertia in gearbox selection.

Custom Inline Gearbox Solutions

All of the inline gear drive models below can be customized to match your performance and application requirements. Request a quote on a custom gearbox or contact Ondrives.US to discuss your unique needs.

Inline Planetary Gear Reducer Options

Gearboxes are known by many different names, including gear drives, reducers, gear reducers, speed reducers, and gearmotors. All terms can be used more or less interchangeably when refering to inline planetary gear reducers.

Spur In-Line Gearboxes

Ondrives.US offers a full line of compact, lightweight spur gear inline planetary gear reducers. These inline gearboxes can be direct mounted to motors or used with shaft coupling. Ratios from 2:1 to 625:1 are available, with torque values ranging from 0.13Nm to 90Nm.
  • Input speed: up to 4,000 RPM
  • Precision machined aluminum housing
  • Dual ball bearings on all shafts

Encoder Low Backlash In-Line Gearboxes

These compact, lightweight, low backlash gear drives are designed specifically for encoder applications. They have a very low moment of inertia at the shaft input, and are rated for input speeds up to 3,000 RPM. Gear ratios from 4.96:1 to 3600:1 are available, in two frame sizes. Synchro cleats for our encoder gearboxes are available from stock.
  • Output torque: 1 oz.-inch
  • Backlash: 15 arc-minutes (at any ratio)
  • Ratios from 4.96:1 to 3600:1
  • Input speeds up to 3,000 RPM
  • Diameter: 1-1/16” or 1-3/4”
  • Black anodized aluminum housing
  • 303 stainless steel gears and shafts
  • Ball bearings

Low Backlash Inline Taper Gearboxes

Our taper gearmotors are inline planetary gear reducer boxes with backlash equal to or better than 8 arc/minute. These inline gearboxes are designed for applications where space is limited, and are available either as a shaft input or mounted to a 24V DC motor.
  • Low backlash: ≤8 arc/min. at input
  • Compact design
  • Shaft input or with mounted motor
  • Ratios from 2:1 to 16:1
  • Output torque values from 1.14Nm to 12.7Nm

Epicyclic (Planetary) Servo Gearboxes

The Ondrives.US line of internal epicyclic servo reducers are extremely rugged and compact. These planetary gearboxes have fully-machined housings (aluminum or steel), and are outfitted with ball bearings throughout. Our inline planetary gear reducers offer flexible motor mounting options and can deliver output torques up to 380 Nm. Ratios from 3:1 to 36:1 are available.
  • Low backlash: ≤30 arc/min. at input
  • Input speeds as high as 3,000 RPM
  • Precision machined aluminum housings
  • Dual ball bearings on all shafts
  • Available in ratios from 3:1 to 36:1
  • Output torques as high as 380Nm

Speed Increaser Gearboxes

Our low ratio Encoder gearboxes and inline taper gearboxes can also be used as gear speed increasers, if needed.

The Ondrives.US Advantage: 30 years of Unparalleled Quality

  • Greased for life
  • Input speeds as high as 4,000 RPM
  • Available with gear ratios up to 3600:1
  • Customized gearboxes available
  • Fully machined from block housings
  • Ball bearings on all shafts
Ondrives.US offers a broad selection of misalignment shaft couplings in inch and metric bore sizes. Inch and metric Precision Ground Shafts are available from stock.

Contact Us for High Performance Inline Gear Drives

Request a quote on a custom inline gearbox for your application. Contact Ondrives.US to discuss your custom requirements.
© Ondrives.US Corp.
216 North Main Street
Freeport, New York 11520

Phone: 888 260-7466