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

In-Line Spur Gear Reducers

Spur gearboxes feature cylindrical gears with straight teeth mounted in parallel and coplanar shafts. The configuration allows you to achieve large gear reduction ratios by using multiple gears in series. Highspeed gearboxes provide high transmission efficiency and perform well in applications where you need to reduce speed and multiply torque.

Precision Engineered Spur Gearboxes

Ondrives.US is an industry leader in the design and manufacture of gearboxes and gear reducers. Our J, XJ, NT, NH, and NTB Series inline spur gear reducers are compact, lightweight and designed for direct mounting to a motor or for shaft coupling. Order the Ondrives.US In-Line Series spur gearbox your project requires, request a quote for a custom spur gear reducer, or contact us for more information.


Highspeed Gearboxes with Low Backlash Performance

Ondrives.US In-Line  Series planetary gear reducers are designed for high-efficiency performance (up to 92% at 1,000 RPM) with low backlash (as little as 3°). Multiple gear ratio options, torque levels, and input/output sizes are available, giving our In-Line Series planetary gear reducers exceptional versatility for a wide range of applications. Our low ratio spur gearboxes can also be used as speed increasers.
Manufactured from top quality materials and specially engineered for high-speed operation (up to 4,000 RPM), these highspeed gearboxes can tackle even the toughest nonstop or high cycle processes.

The Ondrives.US Advantage: Powerful and Efficient Spur Gearboxes

  • High efficiency in-line spur gear gearboxes (up to 92% at 1,000 RPM)
  • Low backlash (as low as 3°)
  • Torque range from 0.13 Nm to 90 Nm
  • Gear ratios from 1:1 to 625:1
  • Custom gearbox options available
  • Maximum input speed: 4,000 RPM
  • Machined aluminum housing and steel interior parts
  • Dual ball bearings on all shafts
  • Permanently lubricated

Custom In-Line Spur Gear Reducers 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.

Contact Us for Precision Engineered Highspeed Gearboxes

Ondrives.US makes quality and precision a priority. We design and manufacture our spur gearboxes to deliver the speed and reliable performance you need for demanding power transmission applications. Our engineers also have the expertise to help you design custom or modified gearboxes and troubleshoot unique challenges.
Order the inline spur gear reducers you need, request a quote for a custom or modified spur gear reducer, or contact us for more information.