A member of the Precision Products family of companies
ISO 9001 Registered630-543-9570sales@oc-gear.com
Overton Chicago Gear
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630-543-9570
HomeIndustriesMarine
Propulsion

Marine

Propulsion, winch, and deck-machinery gearing built to marine standards for reliability far from shore.

Built for marine

Marine and offshore equipment must perform reliably where repairs are difficult and stakes are high. We build propulsion gearing, winch and deck-machinery drives, and matched gear sets to demanding marine standards — engineered for continuous load, reversing duty, and long life in corrosive environments.

Challenges we solve

  • Continuous, reversing propulsion loads
  • Corrosive marine operating conditions
  • Reliability where field repair is impractical
  • Matched, lapped gear sets for correct tooth contact

By the numbers

Matched
Lapped sets
Marine
Grade materials
135+
Years experience

Recommended gearing

  • Bevel Gears
  • Helical & Double Helical
  • Worm Gears
Request a quote

Other industries we serve

Oil & Gas

Oil & Gas

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Fracturing

Fracturing

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Mining

Mining

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Let's build the gearing your equipment depends on.

Send us a print, a sample, or a set of requirements. Our engineers will help you spec the right gearing and get precision parts back to you fast.

Overton Chicago Gear

A full-service manufacturer of precision open gearing and custom gearboxes since 1888. A founding member of AGMA, made in Addison, Illinois.

630-543-9570sales@oc-gear.com

530 Westgate Drive, Addison, IL 60101

Gearing

  • Spur Gears
  • Helical & Double Helical
  • Bevel Gears
  • Worm Gears
  • Custom Gearboxes
  • Repair & Reverse Engineering

Company

  • About Us
  • Gearing
  • Capabilities
  • Industries
  • Request a Quote
  • Contact

Capabilities

  • 5-Axis Gear Milling
  • Carburizing & Press Quenching
  • Gear Metrology Lab
  • Contract Machining
  • Reverse Engineering

© 2026 Overton Chicago Gear. Part of the Precision Products Machining Group.

ISO 9001 RegisteredAGMA Founding Member · Est. 1888
Carved byChisel&Co.