Custom Speed Reducer Gearboxes – Numerous Sizes

Cotta’s long tradition of manufacturing the highest quality gearboxes, American-made for more than a century, is exemplified in our extensive line of speed reducers.  Compact and rugged, Cotta’s engine mounted speed reducers are designed to meet the demands of modern diesel engines. Cotta offers standard models, or will design a custom gearbox for your application.  The reducers are furnished with bell housings to mount directly to the engine’s SAE flywheel housing.

Speed reducers are available in increasing sizes nominally 100 HP to 2200 HP, and with flywheel housing sizes from SAE 4 to 00.  At approximately 2200 HP capacity, the gearboxes become physically too large to direct mount at which point independent mount gearboxes are offered.

Speed reducers can be coupled to the engine by a variety of methods, including clutches, drive plates, or torsional couplings depending upon the application requirements.

Some reducers are suitable for driving side pull loads using belts or chains on the output shaft. Consult with Cotta Engineering before selecting a gearbox for use with a side pull load.

Cotta’s speed reducer catalog is organized into a standard-ratio section and a high-ratio section with each sorted from smallest to largest by power capacity. These gearboxes are considered “standards”, but are not the only reducers available.  Cotta offers modified standard boxes, as well as full-custom and purpose-built boxes.

Cotta speed reducers have been used in numerous applications, some of which are listed below:

  • Pumps
  • Compressors
  • Gen-sets
  • Rock crushers
  • Wood chippers
  • Shredders
  • Dredges
  • Snow Blowers

LEARN MORE:  SPEED REDUCERS

Compound Gearbox Used for Drill Rigs

Cotta Transmission Company works with customers in numerous markets to provide them with engineered gearbox solutions.  Cotta’s capabilities include manufacturing this large compound gearbox that is being used in drill rigs.

Specifications:

  • Ratio 1:1 on Companion Flanges
  • Max Input Speed: 2500 RPM
  • Max Power: 550 HP Per Input
  • Approx. Weight: 3000 lbs
  • Heat Rejection:  76300 BTU/HR

For more information regarding your gearbox needs, please contact Cotta at sales@cotta.com , or call 608-368-5600

Cotta Wet Clutch Gearbox Technology

In response to customer demand, Cotta has developed a new line of wet clutch transmissions based on our most popular products.  These products take reliability, durability, and ease of use to a new level in the most demanding applications.  Cotta’s wet clutch option is an industry leading technology which provides lower maintenance, extended clutch life, and remote actuation for ease of operations.  Gearboxes utilizing dry clutches require manual actuation via a gearbox mounted to a mechanical or pneumatic system.  Cotta’s wet clutch designs can be actuated via an electrical switch, dramatically improving equipment ergonomics. Other benefits of Cotta’s wet clutch system are the elimination of periodic clutch adjustments, dramatically increased service intervals, and extended clutch life, all leading to lower total ownership costs.

Cotta’s SR2347E product family can handle applications up to 1,000 HP, and is designed for applications where direct engine, high HP reduction gears or speed increasers are needed.  The SR2347E units are ideal for industrial, oilfield, and mining industries.

Typical Applications:

  • Compression
  • Drilling
  • Pumping
  • Dredging
  • Process Machinery
  • Shredding
  • Crushers
  • Conveyors

Contact your Cotta sales representative for details and information on how Cotta’s wet clutch products can save you time, money, and improve total life cycle cost.

Call Cotta at 608-368-5600 or email sales@cotta.com

 

View SR2347E Spec Sheet

Driving Performance in Ground Water Drilling & Pumping

To be successful in water well drilling and pumping, your equipment requires highly reliable transmissions and gearboxes that deliver optimum performance in demanding applications. For over a century, Cotta has been designing transmissions, speed reducers and increasers, transfer cases, and custom gearboxes of uncompromised quality.

Companies working with ground water drilling and pumping have come to rely on Cotta gearboxes to handle the tough work required day in and day.  Taking equipment out of production for too long is extremely costly.  This is one of the many reasons why Cotta has become a preferred gearbox supplier for these types of systems.  Cotta products are robust and can handle harsh environments, outlasting other products in the industry.

Contact Cotta today for outstanding capability and unmatched responsiveness!

Ground water drilling & pumping

 

Heavy-Duty Pump Drive

Cotta just completed assembly on another heavy-duty pump drive.  The unit will be going through testing prior to being painted and shipped out to the customer.  Cotta’s high-capacity pump drives are constructed with top quality materials and precision machining to offer you the competitive edge you need to meet your most demanding pumping challenges.  They provide up to 3000 HP, and include extra-wide pump spacing to ensure easy maintenance.  Cotta’s engineers have been designing heavy-duty pump drives for many decades, which allows us to offer hundreds of proprietary designs to best match your power equipment requirements.

See specifications below on this pump drive:

Ratio:  1.0 to 1.0

Max Torque:  4920 FT-LB

Max Speed:  1100 RPM

Max Power:  1030 HP

Max Power Per Pad:  257 HP

Approximate Weight:  2800 LB’

 

LEARN MORE:  COTTA PUMP DRIVES

Heavy Duty Pump Drive

 

 

High-Performance Gearboxes

You don’t have to be a gearbox expert with Cotta as your source. Whether you need standard, modified standard, or a completely new design, Cotta’s engineering team will work with you to meet your specific requirements, effectively and efficiently. Cotta’s engineers and designers work with customers to develop solutions, and then deliver drawings in virtually any CAD format to drop into the customer’s own design.

High-Speed Gearboxes

Cotta manufactures uniquely-designed, high-speed gearboxes that are widely used in R&D and production test stands for automotive and aerospace components, such as generators, constant-speed drives and pumps.  Our high-speed gearboxes are also applicable to use for speed management in many non-aviation, industrial applications-from turbine reduction gears to centrifugal driers, to numerous other instances where a highly specialized, powerful and reliable solution like our high-speed gearbox is needed.

Speed Reducers and Increasers

Cotta speed reducers and increasers will match the optimum engine speed to the optimum driven equipment speed, allowing your engine and your load to operate at ideal efficiency.  Our heavy-duty gearboxes are designed for use with modern commercial diesel engines from major OEMs.  If a pre-designed unit doesn’t fit what you need, then our engineering team will create a custom solution specifically for your application.

Pump Drives

Cotta high capacity pump drives are constructed to provide the competitive edge needed to meet your most demanding of pumping challenges.  Cotta pump drives provide a wide range of horsepower, and include extra-wide pump spacing to ensure easy maintenance.  Our engineers at Cotta have been designing heavy-duty pump drives for many decades, so we offer hundreds of proprietary designs to best match your power equipment requirements.

Transfer Cases

Cotta’s dependable and versatile transfer cases are the choice to convert your truck engine power for a wide range of onsite work capabilities. Our heavy-duty transfer cases are optimized for vocational truck, custom chassis, well drilling, oil field service, and specialty truck applications. They offer modular concepts that help minimize your inventory and maximize application flexibility.

Wet Clutch Gearboxes

In response to customer demand, Cotta has developed a new line of wet clutch transmissions based on our most popular products. These products take reliability, durability, and ease of use in the most demanding applications. Cotta’s wet clutch option is an industry leading technology which provides lower maintenance, extended clutch life, and remote actuation for ease of operations.

All Cotta products are built to provide customers with years of service, and to withstand the daily grind of prolonged operation to work in the most extreme of environmental conditions.

Contact Cotta for your gearbox needs at 608-368-5600 or email sales@cotta.com .

 

Transfer Case in Testing Lab

Cotta’s Transmission systematically and comprehensively monitors the quality of all internal processes.  In addition to first-piece inspection, which is conducted on every machining sequence, once assembly is complete, Cotta tests every transmission product that is shipped.   As well as having an exceptional staff, Cotta’s testing capabilities has played a key role in Cotta becoming a preferred and trusted gearbox solution provider in numerous markets worldwide.

Cotta’s assembly team has been busy getting an order of transfer cases ready for shipment.  The final gearboxes are going through testing and paint.  Cotta has been supplying these transfer cases to a customer for over a decade.  The units are used in workover rigs, and as with all of Cotta’s industrial gearboxes, they are designed to withstand extreme temperatures, pressure, and difficult conditions.

Learn More:  Cotta’s Testing Capabilities

 

 

 

 

Pump Drive for Offshore Application

Cotta recently completed assembly on this pump drive, which will be used in an offshore application.  Cotta’s customer manufactures hydraulic and electric powered movable structures, designing the entire systems for civil, industrial, military, marine and offshore applications and jacking systems.

Pump Drive Specifications: 

  • Ratio: 1 to 1.67 Overspeed
  • Anti-Engine Rotation
  • Max Output Speed: 5800 RPM
  • Max Input Torque:  1450 Ft-Lb
  • Approximate Weight:  1000 Lbs

Cotta Pump Drives provide years of dependable and efficient performance in the harshest, most demanding conditions. Some of our most popular pump drives are listed on the link below, but please contact Cotta for your specific application needs.

Cotta Pump Drives

Transfer Case Used in Mobile Rail Welding Truck

Plasser & Theurer is headquartered in Austria, and is the only manufacturer in the world that offers a complete range of machines for the laying and maintenance of railway tracks. The company also has a location in Chesapeake, VA, operating under Plasser American, which manufactures and services railroad equipment.  Back in 2016 a company that was assisting Plasser with building a truck during product development, reached out to Cotta for a custom transfer case that would be used in a new mobile rail welding truck.  Cotta’s engineering team worked closely with the customer, and offered a solution that met the weight limitations and all other requirements.

David White, contracting/service rep for Plasser American, stated “The Cotta gearbox has been working solid.  The past 2-3 months we have been running the unit even harder 6-7 days a week, sometimes double shifts with 16-20 hours/day.”  David expressed how happy they have been with the Cotta transfer case, and that they have had no issues with the unit.  He further stated, “Whenever we’ve had regular maintenance on the unit and needed parts, Cotta’s service was always great and we never had any issues getting parts in a timely manner.”

Plasser succeeded in integrating their top technology for rail welding into a truck vehicle that doesn’t exceed Federal Bridge Law weight limits. Plasser is breaking through an old market with this product line.

Technical Data on Truck:

  • Length:  39′ 3″
  • Width:  10′ 3″
  • Height:  11- 4″
  • Weight-Weld Head:  12,000 Lbs
  • Weight-Truck Complete:  79,000 Lbs
  • Truck Engine Power:  599 HP
  • Auxiliary Engine:  130 HP
  • Generator Nominal Current:  520 AMP
  • Generator Output:  500/100 V/Hz

LEARN MORE: APT1500RL

Transfer Case Specifications:

  • Ratio: 1 to 1 PTO Drive
  • Max RPM:  3000 Direct Drive; 2300 PTO Drive
  • Max Thru Torque:  12500 Ft-Lb
  • Max Torque thru Gears:  2300 Ft-Lb
  • Approximate Oil Capacity:  4.5 Gal
  • Approximate Weight:  1200 Lb

Creep Drive Design

Cotta’s Model TR2273 is an auxiliary gearbox designed to provide precision vehicle speed control by using a hydraulic motor to rotate the vehicle’s drive shaft.  The Creep Drive control gearbox is installed in the drive-line between the main transmission and rear axle. In road mode power is transmitted normally via a through shaft in the gearbox.  In creep mode the main transmission is shifted to neutral and the hydraulic motor and reduction gear-set in the gearbox are engaged to rotate the drive-line.  Applications include paint stripers, feeders, spreaders, lifts, road/rail, and similar uses requiring inching or remote operations.

SPECIFICATIONS:

Max Input Speed:  3000 RPM drive shaft

Max Torque:

  • Drive Shaft-12,500 lb -ft.
  • Motor pad – C spline   475 lb -ft
  • Motor pad -CC spline  900 lb -ft
  • Motor pad – D spline   1250 lb -ft

Reduction Ratio:

  • 3:1 gearbox
  • 13.5:1 using optional 4.5:1 input planetary

Through Shaft Spline Size:  2.75 x 10 straight side

Motor/Pump Pad:  SAE “C”

Mounting:  (4) 1/2″-13 tapped holes on 11″ x  13″ rectangular pattern

Lubrication:  Internal reservoir. Splash delivery

Shifting:  Dual acting air cylinder

Approximate Weight:  400 lbs.

Contact Cotta for more information at sales@cotta.com, or call 608-368-5600.

 

High-performance gearboxes. Collaborative team of experts.

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.

High-Speed Gearbox Quote Industrial Gearbox Quote Other Quote Requests

Proudly Made in the USA

Proudly Made in the USA

Cotta, LLC

ISO 9001 Quality Management

Member Of The AGMA

Quick Links

Newsletter

Name(Required)