Cone Drive’s Double Enveloping worm gearing has been supplying the industry with more torque since 1925.  We fully support our worm with two input bearings allowing you to mount the gearbox in any position and increase your bearing life.  Cone Drive’s worm geometry provides more torque in a smaller package resulting in space and cost savings.

We understand the cost of downtime and provide you with
best in class lead times to keep you in motion.

Series HP

Single, Double, and Triple Reduction

Wide Range of Sizes

Fan or Water Cooling Available

Universal Housing (Optional Drywell)
Competitive OEM Pricing
Compact Housing Design

Conex Proprietary Worm Gearing

Modular Design

Non-Fretting Motor Connection

Low or Standard Backlash

Single or Double Reduction

IP65 Rated

IP69K Rated, NSF Approved

Viton Output Seals

Food Grade Lubrication

One Input Shaft, Two Output Gears

Unequal Ratio Configurations Available

Water or Fan Cooled

Zero, Low, or Standard Backlash

Supplied as Matched Sets

Wide Range of Exact Sizes and Ratios

Fan Cooled and Non-Vented

0.5 – 5 hp


Need a solution for a unique application?  Cone Drive is ready to design a specialized gearing solution to meet your custom requirements.

We have an extensive background in engineering and will work with you to develop a product to fit your needs.


We design and manufacture worm gears, worm gearboxes, slew bearings, slew drives, harmonic, and cycloidal gearing. With a history of gearbox manufacturing that spans nearly 100 years, we are a world leader in precision motion control technology. With Cone Drive you can always find the right solution for your application with the highest quality products and the lead times you require.


Cone Drive’s double enveloping worm gear has an hourglass shape and the gear is machined with unique contours to ensure maximum contact between the components.  This added contact creates a high torque capacity, high durability worm gear.  Cone Drive’s worm gear design provides you a higher load capacity, lower contact stress, and greater shock capacity.  These improved ratings offer you the flexibility to downsize the gearbox to save space or increase the motor to get more power

Please review the Installation and Maintenance manual for proper oil amounts.

User will assume risk of non-approved lubricants which may affect performance of the gearbox and void warranty.

Normal gearbox operating temperature measured at the oil sump area of the housing should not exceed 100°F (38°C) above ambient temperature or 200°F (93°C) maximum. If the gearbox operating temperature exceeds these limits, shut down the unit and contact Cone Drive. Excessive oil sump temperature is indicative of overloading, misalignment, or improper or marginal lubrication. Continuous operation of the gearbox with the oil sump temperature above 200°F (93°C) will result in failure of the gearbox

Backdriving or self-locking cannot be guaranteed by Cone Drive, therefore a brake mechanism is always recommended

A fan should be used whenever the absorbed power in a continuous application exceeds the thermal horsepower rating of the unit

Zero backlash units are designed for cyclic (non-continuous) positioning applications.  Ratios below 20:1 are not suggested.  Long duty cycle applications can cause excessive gearbox heat and wear.  The motor horsepower required for a zero backlash design is higher than that of a standard design gearset

Yes.  Our engineering team at Cone Drive has years of experience creating customized solutions for our customers.  Please reach out to our Application Engineering team to get started.

Cone Drive has developed a specialized sectioned worm design to achieve zero backlash.  As the gear wears, the worm self-adjusts to compensate and maintain zero backlash.

The Cone Drive Product Development Laboratory is a state-of-the-art facility directly adjacent to our Traverse City, Michigan manufacturing location. The lab has the capacity to test a wide range of gear reducer products, for both Cone Drive products as well as those manufactured by other companies. The lab includes capability to run a wide variety of tests including load testing for evaluating reducer performance and operating efficiency.

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