Gearbox Overheating

Cotta Transmission has been a leading force in transmission gearboxes for over a century. Cotta products are are known for their durability, often operating in extremely harsh conditions.   If a gearbox happens to overheat, outside factors are most likely the cause.   Some of those factors include the operating and ambient temperatures, lubricant viscosity index, as well as load conditions.  However, the most frequent cause for gearboxes to overheat is the oil level.  Too little oil may result in reduced delivery, or no delivery to moving parts, which can cause high friction and heat. Conversely, too much oil increases agitation by gears, bearings, and other moving parts which can generate unwanted heat.  The inclination to add more oil than necessary, or “just in case”, should be avoided.

Oil level concerns are addressed with all Cotta products by experimenting with the levels at the Cotta factory. If there are special operating circumstances such as pitch or roll, or a jerky motion that can cause the oil level to change on your Cotta gearbox, contact our Engineering team to discuss the best way to re-locate the oil level.  Call 608-368-5600 or email sales@cotta.com .

Pump Drive Ready for Shipment

Cotta recently completed the painting process on this pump drive, which will be used in a rope shovel application. Cotta’s customer has been purchasing the pump drives for over 10 years. The units, as with all Cotta transmission gearboxes, have proven to be one of the most reliable, durable, and powerful products available in our industry. Cotta takes great pride and care in designing a gearbox…your gearbox. We work together to discover your specific needs, or uncover the power issues causing problems, and drive ourselves hard to design the best possible high-speed transmission gearbox, speed increaser, or reducer, pump drive, or product your situation requires.

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United Way Campaign

Cotta Transmission recently wrapped up their yearly workplace campaign benefiting United Way Blackhawk Region.  Employees participated in the raffle drawings, food sales, a chili cookoff, a free-throw contest and more.  Donations for this year’s campaign came in just shy of $4000.

United way works to identify every donor and dollar possible to move the needle on touch-to-solve issues, the region’s most daunting social ills including poverty, hunger, homelessness, family violence, and more.  The United Way Blackhawk Region helps to build a stronger Rock County/Stateline, and fights for the healthy, education, and financial stability of every person, in every community.

United Way Campaign

Cotta is proud to be a “Champion for Change”.   Learn more:  United Way Blackhawk Region

 

Single-Stage Speed Reducer

Cotta’s Model GR1600E is a single-stage reduction gearbox designed for direct mounting to industrial engines via an SAE flange and driven in standard engine rotation (CW facing input shaft).  This unit incorporates an idler shaft to provide output rotation the same as the input rotation.  Tabulated below are nominal power and speed capacity, together with standard options.

Output Rotation:  Same as input

Max Input Torque:  2600 lb-ft

Max Input Speed:  2200 RPM, or as otherwise limited by input clutch or coupling

Ratio Range:  1.28 to 3.0

Output Shaft Size:  4.000″ dia., 9″ long, 1″ x 1/2″ keyway

Output Shaft Location:  6 o’clock std, 12, 3, and 9 o’clock optional

SAE Housings:  #00, #0, #1/2, #1

Flywheel Couplings:  Various clutches, couplings, and drive plates through SAE 24″

Rear Support:  Integral foot mounts provided

Lubrication:  Integral lube pump supplied

Cooling:  Oil/water shell-and-tube cooler furnished if required. Various options.

Side Load Capable:  Yes.  Contact Cotta for specs and limits

Approximate Weight:  1500 lbs.

Additional Information:

  • Flywheel coupling selection requires Cotta technical review and approval
  • Some speed reducers output shafts are suitable for chain or belt side pull drives, while others are not. Complete application details are required for Cotta to make recommendations and approval.
  • Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

Contact Cotta to discuss other options or specialized requirements, by emailing sales@cotta.com , or calling 608-368-5600.

 

Overspeed Gearboxes for Sewer Pumping Application

Cotta’s complete product line supports a wide variety of industries and applications, where demanding performance is required under the most extreme working conditions and challenging environments.  One of those industries where Cotta’s products are in high demand is the vocational truck industry. Trucks in this type of industry typically include construction trucks, utility trucks, garbage trucks, heavy haul trucks and more.   Cotta manufactures these overspeed gearboxes for a customer that has been using the units in a sewer pumping application.  Over 10 years the gearboxes have proven to be a reliable and durable solution for the customer.

Unit specifications:  

Ratio:  1 to 1.61

Max Output Speed:  3600 RPM

Max Input Torque:  350 Ft-Lb

Approximate Weight:  220 Lb

Speed Increasing Gearbox

To learn more about Cotta’s capabilities, contact an application specialist by emailing sales@cotta.com, or calling 608-368-5600.

 

Demand for High Speed Gearboxes

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 .

Three Shaft Transfer Case Used in Workover Rigs

Workover rigs, also called completion rigs or pulling units, are specialized oil rigs set up for inserting or pulling pipe tubing in and out of wells. Workover crews are called when an oil well has been drilled, is undergoing repair or is being retired. Cotta manufactures a 3 shaft transfer case that is being used in workover rigs.  The gearbox moves the power from the rear wheels, and while stationary over a well when the mast is up, it is used to run the draw works and winches.

This 3 shaft transfer case is designed for maximum application flexibility.  The T-case has mirror symmetry and provides four identical input/output stations.  Each station has a 2.75 X 10 splined shaft, and can be fitted with yokes or flanges.  A disconnect (de-clutch) can be fitted to the I/O stations to provide power interruption. An optional line of disconnects features SAE pump pad outputs. A special version of this  model can be configured as a transfer case, drop box, PTO, or pump drive.  Most options are available for field retrofit without having to return, remove, or disassemble the gearbox.

Specifications:

Nominal Application Power:  600 HP

Torque Capacity:

  • 2200 lb-ft continuous through gears
  • 6800 lb-ft continuous through shaft
  • 17000 lb-ft momentary through shaft

Max Speed:  2800 RPM

Ratio:  1:1 input to output

Center Distance:  17 inches input to output

Rotation:  Outputs rotate same direction as input

Lubrication:  Internal reservoir.  Lube pump furnished

Shifting: Disconnects are air shift.  Mechanical shift option available

Output Shaft Size:  2.75 -10 straight side spline

Common Options:  SAE and ISO yokes and flanges, disconnects, pump pads, clutches, stub shaft

Weight:  Approximately 600 lbs w/o options

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Cotta Transmission – Custom Gearbox Solutions

Cotta. High-performance products. Collaborative team of experts. Solving problems and exceeding expectations. A Cotta transmission gearbox – crafted and matched to meet your specific needs – is one of the most reliable, durable, and powerful products available in our industry.  We take great pride and care in designing gearboxes. We work together to discover your specific needs, or uncover the power issues causing problems, and design the best possible high-speed transmission gearbox, speed increaser or reducer, pump drive, or product your situation needs. To learn more, visit…www.cotta.com or call 608-368-5600.

 

Contact Cotta at sales@cotta.com or call 608-368-5600

Cotta Gearbox Replacement Parts

It is not uncommon for Cotta to receive service part requests for gearboxes that have been operating in the field for over 50 years.  That says a lot about the quality and durability of Cotta’s products.  If you are looking for replacement parts to a Cotta gearbox, you can contact Cotta directly.

How easy is it to find the part that you need? It’s simple, all you need is the information below:

  • Stock List Number (P/N) on Transmission name plate
  • Or Serial Number on Transmission name plate

If the nameplate happens to be missing, you can provide Cotta with the serial number stamped into the gear case. This is usually visible when looking down on the transmission in its installed position (see picture below).

Cotta Gearbox Serial Number

Cotta also has an online library of interactive part schematics linked to each unit’s bill of materials. You can select a unit, then the part number(s) for what you need to order, and then specify the number of items per part.

Learn more – Interactive Part Schematics Library

Heavy Duty 4-Station Pump Drive

Cotta offers a heavy duty 4-station pump drive in either engine mount via SAE flange, or independent mount.  This unit has output stations for fitment with SAE pump pads, sizes “B” to “F”, and various ISO and custom pads.  Pad size and location are customer specified.

Specifications:

Max Power:

  • Input:  3000 HP
  • Output:  825 HP at any output

Max Input Speed:  2100 RPM

Max Torque:  10,700 lb-ft. input

Rotation:  Output pads rotate opposite input

Ratio:  1:014 reduction

Output Options:  SAE, ISO, and custom pump pads.  Custom shafts, disconnects, and clutches

Mounting Options:  SAE flange size #00. Independent

Flywheel Coupling Options W/SAE Flange:  Overcenter clutches, torsional couplings, drive plates, custom

Lubrication:  Internal reservoir. Lube pump and filter included. Heat exchanger required

Approximate Weight:  6100 lbs

 

Cotta’s high-capacity pump drives are constructed with top quality materials and precision machining to offer you with the competitive edge you need to meet the most demanding pumping challenges. They provide up to 3000 HP, and include extra-wide pump spacing to ensure easy maintenance.  Our engineers here at Cotta have been designing heavy-duty pump drives for many decades, so we can offer hundreds of proprietary designs to best match your power equipment requirements.

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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

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