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Up to 160"

Spur Gears

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

Spur Gears
Max Diameter
160 inches
Accuracy
To AGMA 11
Type
External / internal
Heat Treat
In-house
Overview

Spur gears are the foundation of industrial power transmission, and few shops can cut them at our scale or accuracy. Our 5-axis milling and dedicated gear-cutting equipment produce external and internal spur gears in diameters up to 160 inches, held to AGMA 11 quality without the need for grinding on our Höfler 2400.

Key features

  • External and internal spur gears up to 160" diameter
  • AGMA 11 accuracy cut on our Höfler 2400 — no grinding required
  • Cut from your material or ours, fully heat treated in house
  • Coarse and fine pitch, single or batch quantities
  • Reverse-engineered from a sample when no print exists

Typical applications

Mill drivesKilns & dryersHeavy conveyorsPower transmission
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Helical & Double Helical

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Bevel Gears

Bevel Gears

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

Worm Gears

Worm Gears

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

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

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  • Gearing
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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.