Gearbox performance is crucial to Cotta and that’s why every unit built is tested and monitored in our state-of-the-art testing lab. High-speed gearboxes are especially scrutinized for bearing temperatures and other criteria to ensure our customer receives a quality Cotta product. Cotta speed increasers have been successfully tested with output speeds reaching 80,000 RPM.
Cotta recently had an OEM reach out to us to see if we could work with them to upgrade their gearboxes that they purchased from us. The gearbox is a model J967 Right-Angle, used in a concrete/asphalt grinding application. Cotta engineers worked with this OEM to understand the changes they were looking to make. Then, they sent several gearboxes back to us for evaluation and upgrade. Cotta not only designs new gearboxes, but we can repair, rebuild, and upgrade a customer’s existing gearbox back to either original or upgrade requirements. We also offer reman gearboxes for certain models as well.
A major Cotta product line is our high-speed, high-power gearboxes used in numerous types of R & D and production test stand applications. Primary industries where our high-speed gearboxes are used are the commercial and military aerospace market and the automotive market. Typical applications of the type of products being evaluated are generators and hydraulic pumps. We offer a wide range of ratings for our gearboxes. Nominal power ratings start at 100 horsepower and go up to 5,700 horsepower. The output speed range starts at 6,000 RPM and goes up to 85,000 RPM. When you need higher ratings, most models can be customized or modified to meet your exact design requirements. Our gearboxes are designed to last and offer unsurpassed reliability to our customers, several of whom have had Cotta gearboxes in use for over 40 years!
Over 50 Years of Custom Design Experience: Did you know?
You have access to the best gearbox technology when Cotta is your chosen source. Our engineers are a true extension of your company. With the experience of working with hundreds of companies and thousands of gearbox designs, over decades, our engineering team will dive into your requirements and will create a world-class design. We are ISO 9001:2015 Certified as well, ensuring the highest quality practices in our product design and engineering, our measurement and test equipment, and our manufacturing engineering. Cotta maintains a 2,000+ existing drivetrain design library. Our experienced engineers and craftsmen can take virtually any new gearbox application from concept to delivery at our Wisconsin production facility. We can also re-engineer retrofit Cotta designs into applications where competitors’ products are no longer supported, like Fabco, Durst, and Funk. Whether you need a standard, modified-standard, or a completely new design, Cotta is ready to drive technology for you.
Charles Cotta and His Four Wheel Drive Steamer: The following article about Charles Cotta, provided by Les Hamilton, was taken from the Summer 1956 issue of “The Antique Automobile” magazine. Visit our Aboutpage where you can download and read “Charles Cotta and His Four Wheel Drive Steamer”.
Back in 1906, engineer Charles Cotta introduced his breakthrough constant-mesh shifting transmissions, and soon became a key supplier to the automobile and truck industries. In the 1940’s, Cotta shifted our focus to industrial products and off-highway / construction specialty vehicles and, in 1960, we added a line of high-speed transmissions. Over the past 50 years, Cotta has diversified into offering other products including speed reducers, speed increasers, hydraulic pump drives and split-shaft PTO’s. Bringing us to today, as Cotta has become the premier, trusted and leading manufacturer of top-quality, precision-engineered transmission products for a wide range of specialized mobile and stationary applications, such as vocational trucks, defense, off-highway, aerospace, heavy industry, well-drilling, mining, marine and more. Visit our About page. Download and read “Charles Cotta – A Man and His Dreams”.
https://cotta.com/wp-content/uploads/Charles-Cotta-2.jpg283202fortytwo eightynine/wp-content/uploads/2018/04/cotta_transmission-llc-logo.pngfortytwo eightynine2023-11-27 12:11:592023-11-27 12:12:16Cotta Tech Talk – Charles Cotta
Cotta manufactures hundreds of different gears, all held to the AGMA National Standard. Gears can be used to reverse the direction of motion, change rotational speed, or to change which axis the rotary motion is occurring on. Additionally, gears can be used to increase the force of a system. For high performance results that meet specific demands, Cotta is your gearbox of choice.
There are controlling documents that govern most of the aspects of gear and gearbox design. The American Gear Manufacturer’s Association (AGMA) documents define gear tooth quality, gear rating, gear materials, gearbox component design (i.e., shafting, keys, splines, etc.) and many other topics. If your product is not rated to these standards, it may not be equivalent to Cotta product!
Cotta bearing kits are a combination of two bearings and two spacers that are paired together and match-ground to produce the desired end play. This means that one element cannot be replaced individually. The entire bearing kit must be replaced or re-ground to original specifications.
Cotta recently designed this new High-Speed Gearbox Model SN2231-2 for component testing use by a leading U.S. aviation and aerospace product manufacturer. Our Model SN2231-2 is a foot-mounted, dual output, high-speed gearbox that is built for test stand use. This unit is designed for bi-rotational rotation.
Model Series SN2231-2 High-Speed Gearbox Specifications:
Continuous Rating of 400 hp at 7,200 to 16,000 rpm
Max Output Speed of 18,000 rpm
Ratios of 1 to 2.518 Overspeed
Continuous Output Torque of 300 ft-lb.
Max Instantaneous Output Torque of 500 ft-lb.
Max Accel / Decel Rate of 2,000 rpm/sec at Output
Approximate Weight of 1,200 lbs.
Lubricant AGMA #1 or Equivalent
For more information about Cotta SN2231-2 and other high-speed gearboxes in our line, please visit our High Speed Gearboxes page.
https://cotta.com/wp-content/uploads/Cotta-SN2231-2.jpg15122016fortytwo eightynine/wp-content/uploads/2018/04/cotta_transmission-llc-logo.pngfortytwo eightynine2023-02-09 09:26:582023-02-09 09:26:58High-Speed Gearbox Model SN2231-2
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