A member of the Precision Products family of companies
ISO 9001 Registered630-543-9570sales@oc-gear.com
Overton Chicago Gear
Gearing
Industries
CapabilitiesAboutContact
630-543-9570
HomeGearingWorm Gears
High-Ratio

Worm Gears

Worm and worm-wheel sets for high reduction ratios, compact drives, and self-locking motion control.

Worm Gears
Set
Worm + worm wheel
Wheel Material
Bronze
Ratios
High reduction
Contact
Full-face lapped
Overview

Worm gearing delivers large speed reductions in a compact package, with the added benefit of self-locking behavior. We manufacture worms and bronze worm wheels as matched sets, cut and finished for smooth, efficient contact across the full face.

Key features

  • Matched worm and bronze worm-wheel sets
  • High reduction ratios in a compact envelope
  • Self-locking configurations available
  • Full-face contact for efficiency and long life
  • Custom ratios and center distances to print

Typical applications

Indexing drivesLift & positioningConveyor drivesMotion control
More gearing
Spur Gears

Spur Gears

Precision straight-tooth spur gears cut to AGMA 11 in diameters up to 160 inches — the workhorse of heavy power transmission.

Helical & Double Helical

Helical & Double Helical

Single, double helical, and herringbone gears for smooth, quiet, high-load meshing in demanding drivetrains.

Bevel Gears

Bevel Gears

Spiral, straight, and skew bevel gears for reliable right-angle and intersecting-shaft power transmission.

Get started

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.