Speed Reducers & Speed Increasers

Cotta speed reducers match engine speed to driven equipment speed allowing both the engine and load to operate at peak efficiency. These compact and heavy duty gearboxes are designed for use with the commercial offerings of major engine manufacturers.

Cotta engine mounted speed reducers are available with SAE flyweeel housings from #5 to #00, ratios to 8, and horsepower capacity to 2200. Above 2200 HP, remote mount models are generally used.

    Cotta Transmission Service Network

    For Cotta Transmission service, call 1-800-341-4334

    Learn more

    Palmer Johnson's nine-location factory-authorized service center network features:

    • Field service
    • On-site troubleshooting and diagnostics
    • On-site application/installation review
    • Unit removal & installation
    • System and bearing failure analysis
    • Oil sampling and predictive maintenance
    • Specialized tooling & lifting equipment
    • 100% genuine replacement parts
    • Repairs & remans tested to original factory specs
    • 12-month warranty
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    Palmer Johnson Location
    Service Dealers