Newly Re-designed P-Series Gearbox improves Backlash, Corrosion Resistance and Center Distance between Input and Outputs! 


Gearboxes are a fundamental component of many drive systems. With a wide range of designs and configurations available, they can be used to increase torque, reduce or increase speed, reverse rotation, or change the direction of the driveshaft. As with any drive component, the quality of the gearboxes you use drastically affects mechanical performance and longevity.

High Precision Gearbox Manufacturer

Ondrives.US designs and manufactures high-precision gearboxes in a range of sizes, from miniature to robust. We offer unique, compact, and lightweight options in ratios up to 3600:1, with output torque as high as 850Nm.  Our standard product line includes several types, including wormwheelcrossed axisright anglecounter rotatingspur gearinline, spiral bevel, hypoid, traction drive, rack and pinionplanetary motorized and miniature models.

As an innovator in standard and custom gearbox manufacturing, we continuously improve current designs and develop new solutions to accommodate advances in machinery and technology. Browse our catalog for a full listing of in-stock gearboxes.  We also offer customized gearboxes, with endless combinations of these configurations available. The possibilities are limited only by system requirements and designer imagination.

References for Selecting the Right Gearboxes

If you’re unsure what gearbox type is right for your application, view our Buyer’s Guide to see ten important points to consider when choosing a gearbox. Our Inertia and the Use of Inertia Figures Guide is another comprehensive resource offering a formula for dealing with inertia. If you have a specific part number in mind from a competitor, use our cross-reference to guide you to the right one.

Standard Gearbox Models

High quality standards and proven performance have made Ondrives.US a trusted brand in gearbox manufacturing. All standard models are built for precision and designed with features that improve performance and solve common mechanical challenges. Points to consider while browsing our inventory include ratio, backlash rating, operation, temperature range, operating environment, input and output needs, housing material, and application.

Choose from our categories below to find a model based on your requirements or use our competitor cross-reference tool to search products based on your existing part number. Our engineers are also available to help you choose a gearbox based on your specifications and operating environment.

Hypoid GearboxHypoid Gearboxes

Our newest gearbox, the Hypoid Gearbox, in the Ondrives.US product line delivers high-efficiency results in smaller capacity motors. These gearboxes handle heavier load transmission, achieve higher gear ratios, and have an incredibly quiet operation.

Wormwheel Gearboxes | Ondrives.USWormwheel Gearboxes

Compact right angle wormwheel speed reducers produce an output at 90° from the input. 10 space-saving frame sizes are available, with output torques as high as 420Nm.


Crossed Axis Gearboxes | Ondrives.USCrossed Axis Gearboxes

Crossed axis gearboxes drives produce an output at 90° from the input. These feature anodized aluminum housings and hardened alloy steel input gears for durability in challenging applications. Available with gear ratios from 1:1 to 40:1 and torque values up to 62Nm.


Right Angle Bevel Gearboxes | Ondrives.USRight Angle Bevel Gearboxes

Our Bevel T right angle speed reducers feature a shaft that passes through both sides in the form of a “T”. This solid thru-shaft rotates at both ends simultaneously. Also available with a single output shaft in right angle bevel gearboxes. Available in ratios from 1:1 to 24:1.


Counter Rotating Bevel Gearboxes | Ondrives.USCounter Rotating Bevel Gearboxes

Our counter-rotating T-style bevel gearboxes feature two output shafts on the same axis and an input shaft at 90° from both; the output shafts rotate in opposite directions.


Spur Gear Reducers | Ondrives.USSpur Gear Reducers

Also known as parallel shaft gearboxes, spur gear reducer boxes provide an output that is parallel to the direction of the input shaft. Available in gear ratios from 2:1 to 7:1 with torque output up to 850Nm.


In-Line Gearboxes | Ondrives.USInline Gearboxes

Inline reducer gearboxes provide an output that continues in the same direction and on the same plane as the input. We offer a wide range of inline reducers, including spur, Encoder, low-backlash taper, speed increasers, and more. Available in ratios up to 3600:1.


Rack and Pinion Actuators | Ondrives.USRack & Pinion Actuator Gearboxes

Rack and pinion actuator gearboxes convert rotational motion into linear motion, or vice versa. Our compact designs provide short strokes from 10mm to 30mm.


Planetary and motorized gearboxesPlanetary & Motorized Gearboxes

Our motorized planetary reducers are small, inline devices designed for low backlash performance in speeds up to 3,000 RPM. Planetary & motorized gearboxes are slim, compact footprints make them ideal for applications where space is limited.


Miniature Gearboxes | Ondrives.USMiniature Gearboxes

Many of our other gear reducer styles are available in miniature versions. These ultra-compact miniature gearboxes are precision engineered for superior performance in tight spaces and small-scale applications.

Modified and Custom Gearbox Designs

A wide variety of standard gearboxes and motors makes it easy to find a solution for almost any application. With an in-house team of application engineers, we can also modify or customize any of our standard products to meet your unique specifications. Our team can also reverse engineer obsolete gearboxes or help you find a comparable model within our product line. Contact our application engineers to discuss your custom gearbox application. 

The Ondrives.US Advantage: High-Performance Gearbox Manufacturer

Ondrives.US manufactured standard, modified, or completely custom-built gear boxes to suit any application. Features and advantages of our gear boxes include:
  • Torques to 850Nm
  • Ratios to 3600:1
  • Greased for life
  • High efficiency, low backlash gear boxes to a max. of 4 arc minutes
  • Over 30 years’ experience in gear box manufacturing
  • All gearboxes are conservatively rated
  • Unique miniature gear boxes as small as 0.55” cube
  • NEMA flange mounts
  • Lightweight aluminum or plastic housings
  • Available with ingress protection to IP65 or higher
Connect your gear box with our misalignment shaft couplings available in inch and metric bore sizes. Inch and metric precision ground shafts are available from stock.

Explore Our Complete Line of Gearboxes

At Ondrives.US, we think “inside” the box. Our innovative gear reducer technology is ideal for nearly any motion transfer application. Browse our various gearbox types to find the right fit you’re your application, or contact us for help selecting a model that meets your requirements