Speed Increasers

Boost Your Equipment’s Performance with Cotta Speed Increasers

Cotta Speed Increasers are American-made and offer heavy-duty performance!

Cotta’s long tradition of manufacturing the highest quality gearboxes, Made in the USA for over 100 years, is exemplified in our extensive line of speed increasers and speed reducers. Our engine-mounted speed increasers raise the engine speed to the driven equipment speed, allowing your engine and load to both operate at optimal efficiency. Typical uses include pumps, dredges, compressors, crushers, drills and high-performance machinery for oil & gas, construction, mining, and other industrial applications. Our heavy-duty gearboxes are designed for use with diesel engines, electric motors, PTO’s, and other prime movers.

Cotta speed increasers require rear supports and are designed to be driven clockwise facing the input shaft. For us to recommend a speed reducer, we need to know your input speed, ideal output speed, flywheel housing size, flywheel connection requirement, direction of rotation, and the type of driven equipment. If one of our pre-designed units listed below doesn’t fit your need, then our engineering team will create a custom solution specifically for you. Cotta engineers have experience designing specialized speed increasers for satisfying a variety of requirements and options.

POPULAR SPEED INCREASERS VIEW SPEED INCREASERS CATALOG VIEW SPEED INCREASERS SPEC SHEETS INDUSTRIAL GEARBOX QUOTE REQUEST FORM

Popular Speed Increasers:

Some of our most popular speed increasers are shown below, and listed on this Tabulation Chart, but please contact Cotta for your specific needs.

AO2053A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 650 lb-ft.
  • MAX INPUT SPEED: 3000 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 4500 RPM
  • RATIO RANGE: 1.4 to 2.0
  • OUTPUT SHAFT SIZE: 2.250” diameter, 5” long 5/8” X 5/16” keyway.
  • OUTPUT SHAFT LOCATION: 12 o’clock std. 3, 6, and 9 o’clock optional.
  • SAE HOUSINGS: #1, #2, #3, #4
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 14”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 400 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices.

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AO2053E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 450 lb-ft.
  • MAX INPUT SPEED: 3000 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 4500 RPM
  • RATIO RANGE: 1.16 to 2.48
  • OUTPUT SHAFT SIZE: 2.250” diameter, 5” long 5/8” X 5/16” keyway.
  • OUTPUT SHAFT LOCATION: 12 o’clock std. 3, 6, and 9 o’clock optional.
  • SAE FLANGE OPTIONS: #1, #2, #3, #4
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 14”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 425 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

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GO1700A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 5500 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 5500
  • RATIO RANGE: 1.5 to 3.0
  • OUTPUT SHAFT SIZE: 2.750” diameter X 6.0” long with 5/8” X 5/16” keyway.
  • OUTPUT SHAFT LOCATION: 12 o’clock to input std. 3, 6, and 9 o’clock optional.
  • SAE FLANGE OPTIONS: #00, #0, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied.
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 1900 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

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GO1700E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 5500 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 5400
  • RATIO RANGE: 1.21 to 2.95
  • OUTPUT SHAFT SIZE: 2.750” diameter X 6.0” long with 5/8” X 5/16” keyway.
  • OUTPUT SHAFT LOCATION: 12 o’clock to input std. 3, 6, and 9 o’clock optional.
  • SAE FLANGE OPTIONS: #00, #0, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied.
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 2000 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

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GO1900A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 7900 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 4800 RPM
  • RATIO RANGE: 2.09 to 3.0
  • OUTPUT SHAFT SIZE: 3.25” diameter X 6.0” long with .75” X .375” keyway.
  • OUTPUT SHAFT LOCATION: 12 o’clock std. 3, 6, and 9 o’clock optional.
  • SAE FLANGE OPTIONS: #00, #0
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 2100 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

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GO1900E

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 7900 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 4800 RPM
  • RATIO RANGE: 1.76 to 3.54
  • OUTPUT SHAFT SIZE: 3.25” diameter X 6.0” long with .75” X .375” keyway.
  • OUTPUT SHAFT LOCATION: 12 o’clock std. 3, 6, and 9 o’clock optional.
  • SAE FLANGE OPTIONS: #00, #0
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 2100 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

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GO2329

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 10,000 lb-ft.
  • MAX INPUT SPEED: 1200 RPM or as otherwise approved by Cotta Engineering.
  • MAX OUTPUT SPEED: 4350 RPM
  • RATIO RANGE: 2.0 to 3.61. Others by special design.
  • OUTPUT SHAFT SIZE: 4.750” no-key typical.
  • OUTPUT SHAFT LOCATION: 12 O’clock std. 3, 6, and 9 o’clock optional.
  • SAE HOUSINGS: None. Independent mount.
  • SHAFT COUPLINGS: Commercial shaft couplings sized as required.
  • MOUNTING: Independent foot mounted unit.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished as required by application
  • *SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • **APPROXIMATE WEIGHT: 2100 lbs

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

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SI2A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 1450 lb-ft.
  • MAX INPUT SPEED: 3000 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 4500 RPM
  • RATIO RANGE: 1.2 to 2.67
  • OUTPUT SHAFT SIZE: 2.500” diameter with 5/8” X 5/16” keyway
  • OUTPUT SHAFT LOCATION: 12 o’clock std. 3, 6, and 9 o’clock optional.
  • SAE FLANGE OPTIONS: #0, #1, #2
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 750 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

DOWNLOAD PDF

SI2E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 1300 lb-ft.
  • MAX INPUT SPEED: 3000 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 4500 RPM
  • RATIO RANGE: 1.21 to 3.0
  • OUTPUT SHAFT SIZE: 2.500” diameter with 5/8” X 5/16” keyway
  • OUTPUT SHAFT LOCATION: 12 o’clock std. 3, 6, and 9 o’clock optional.
  • SAE FLANGE OPTIONS: #0, #1, #2
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 800 lbs

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

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SI3A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 2000 lb-ft.
  • MAX INPUT SPEED: 3000 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 5500 RPM
  • RATIO RANGE: 1.27 to 2.44
  • OUTPUT SHAFT SIZE: 2.750” diameter with 5/8” X 5/16” keyway.
  • OUTPUT SHAFT LOCATION: 12 o’clock std. 3, 6, and 9 o’clock optional.
  • SAE FLANGE OPTIONS: #0, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 1000 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

DOWNLOAD PDF

SI3E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 1900 lb-ft.
  • MAX INPUT SPEED: 3000 RPM or as otherwise limited by input clutch or coupling.
  • MAX OUTPUT SPEED: 5500 RPM
  • RATIO RANGE: 1.2 to 2.52
  • OUTPUT SHAFT SIZE: 2.750” diameter with 5/8” X 5/16” keyway.
  • OUTPUT SHAFT LOCATION: 12 o’clock std. 3, 6, and 9 o’clock optional.
  • SAE FLANGE OPTIONS: #0, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 1150 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Cotta Speed Increaser output shafts are not designed for belt or chain side pull drives. If your application requires side loads provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary significantly with options such as SAE housing size and flywheel coupling choices

DOWNLOAD PDF
Industrial Gearbox Quote Request Form

Cotta. Your gearbox of choice.

Precision-Engineered Speed Increasers to Meet Your Unique Requirements. Contact us today to learn more.

Maximize the efficiency of your industrial equipment with Cotta’s precision-engineered speed increasers. With a wide range of sizes and styles to choose from, our team of experts can help you find the perfect fit for your specific needs. Contact us today at 608.368.5600, sales@cotta.com, or click here to get started.

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Cotta Engineered Gearboxes are the most reliable and powerful products available in our industry. We take great pride in designing each unique gearbox with the latest technology. We deliver the best possible high-speed gearbox, speed increaser or reducer, pump drive, transfer case, or product type your situation requires.

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