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Cotta Transmission has a niche in the high-speed gearbox market, offering custom solutions when off-the-shelf products just aren’t a fit.  Companies continue to turn to Cotta’s engineering department for unique prototype solutions, many of which are being used in test stands to help validate the customer’s developing technology.

Cotta manufactured this speed reducer that is being used in an aerospace test stand application.  See specifications below:

  • Ratio:  1.719 : 1
  • Maximum Shaft Speed:  29,000 RPM
  • Maximum High Speed Shaft Power:  445 HP
  • Maximum Accel/Decel Rate:  2000 RPM/s on High Speed Shaft
  • Approximate Weight:  270 LBS
  • Total Inertia:  .06868 LB-IN – S^2
  • Referred to High Speed Shaft

Cotta provides you with the optimum gearbox design for your application.  Provide us with as much information as you have available by clicking here.

Cotta Transmission completed the assembly on this high-speed gearbox for a systems integrator specializing in dynamometers and test stands. The customer reached out to Cotta and needed a gearbox to reduce turbine speeds into their dynamometer speed range. This is the second unit at this installation and the requirement was to create a duplicate envelope gearbox with the new specifications. Cotta’s engineering team was able to fit the new ratio in the existing center distances while still providing all design requirements.

The high-speed gearbox will be used in a in R&D test stand application, with the dynamometer providing the load on the unit. The end user of the gearbox is one of the top science and technology research universities in the world.

SPECIFICATIONS:

Ratio:  1 to 15.68

Max Output Speed:  62,000 RPM

Max Power:  315 kW (420 HP)

Max Output Torque:  75 Nm (55 Ft-Lb) @ 40,000 RPM

Approximate Weight: 430 kg (950 LB)

Estimated Efficiency:  1270 BTU/Min

 

LEARN MORE: HIGH SPEED GEARBOXES

 


 

For over 50 years, Cotta has designed and manufactured a diverse line of high-speed gearboxes that are used by some of the largest OEM companies in the world for numerous R&D and production test stand applications for automotive, aerospace and industrial components. Our high-speed gearboxes are also applicable for speed management in non-aviation, industrial applications – from turbine reduction gears to centrifugal driers, to numerous other instances where a highly specialized, powerful and reliable solution is needed.

Cotta has the ability to start with a “clean-sheet design”, which allows us to show you our versatility and experience to engineer a customized gearbox solution that fits your personal requirements and needs.  Whether it’s a standard build or a custom configuration, Cotta will find the right recommendation for you.

Learn more:  High-Speed Gearbox Catalog

Cotta has an extensive background in working with research facilities at universities worldwide, supplying high speed gearboxes for test stand applications.  Some of those facilities are involved with research and product development for OEM’s in the aerospace propulsion and power industries.

For over 50 years, Cotta has designed and manufactured a diverse line of high speed gearboxes that are used by some of the largest OEM companies in the world.  The gearboxes are developed for numerous R&D and production test stand applications for automotive, aerospace and industrial components. Cotta’s high speed gearboxes are also applicable for speed management in non-aviation, industrial applications – from turbine reduction gears to centrifugal driers, to numerous other instances where a highly specialized, powerful and reliable solution is needed.

On a recent project for a university, Cotta’s engineering team designed and manufactured a high-speed gearbox for a test stand.  See specifications below:

RATIO:  1 TO 13.02

MAX TORQUE:  700 FT-LB HIGH SPEED SHAFT

MAX SPEED:  23,000 RPM HIGH SPEED SHAFT

APPROX WEIGHT:  3000 LBS

Cotta continues to see increased demand for high speed gearboxes from companies worldwide.  Some of the high speed gearboxes that are currently in process at Cotta’s facility will be used in test stand applications for the aerospace industry.  Over 50 years, Cotta has designed and manufactured a diverse line of high speed gearboxes that are used by some of the largest OEM companies in the world for numerous R&D and production test stand applications for automotive, aerospace, and industrial components. Cotta’s experienced engineers can take virtually any new transmission application from concept to delivery. Benefiting from years of experience in the high speed gearbox arena, Cotta has numerous existing models that can be substantially customized or modified.

LEARN MORE:

Cotta’s Popular High Speed Gearboxes- CLICK HERE

Cotta’s High Speed Gearbox Interactive Catalog – CLICK HERE

Cotta’s High Speed Application Data Form – CLICK HERE

If you have an existing project and need a recommendation on a high speed gearbox that will best meet the needs of your application, please call 608-368-5600, or emailing sales@cotta.com .

Cotta has another high-speed gearbox in process for a test stand application that will be used in the aerospace industry. The housing for this gearbox is currently being machined on Cotta’s Milltronics HBM110XT.  The machine is ideal for this type of part, as it provides a large working table that can handle the heavy duty load capacity.

Gearbox Ratios, Torques & Speeds:

  • Ratios 1 : 8.36
  • Max Torque: 855 in-lb @ 27,239 RPM
  • Max Speed: 29,963 RPM

Low Speed Fuel Pump:

  • 1 : 2.61
  • Max Torque: 1,456 in lb @ 8,525 RPM
  • Max Speed 9,378 RPM

Main Fuel Pump: 

  • 1 : 11.00
  • Max Torque: 486 in lb @ 34,900 RPM
  • Max Speed: 38,390 RPM

Approximate Weight: 1,619 lbs

Cotta has designed and manufactured a diverse line of high-speed gearboxes that are used by some of the largest OEM companies in the world for numerous R&D and production test stand applications for automotive, aerospace, and industrial components.

LEARN MORE

Milltronics HBM110xt