Operating signal within 12 months from two or more independent sources.
What they make
Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing333612Overton Chicago Gear manufactures gears and gearboxes, including straight, skewed, and spiral bevel gears; spur, helical, and rack gears; herringbone and double helical gears; and worm set gears. The company provides contract machining and contract heat treatment services, and offers engineering services including reverse engineering and gearbox rebuilds and upgrades. It serves the oil and gas, fracturing, mining, marine, wind energy, cement processing, locomotion, metal processing, defense, medical, paper and pulp, and power generation industries.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
CERTIFICATIONS — LISTED ON THE COMPANY’S WEBSITE
- ISO 9001
Read from this company’s own website on August 9, 2026. Nobody at the facility has confirmed it here, and FactoryRegistry has not verified these — unlike operating status, which comes from independent public records. A certificate can lapse without the website changing, so ask the facility for current ones.
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Overton Gear CORP | Addison | Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing 333612 | UNVERIFIED | 0.1 KM |
| 201 | Wood Dale | Turbine and Turbine Generator Set Units Manufacturing 333611 | LIKELY ACTIVE | 6.6 KM |
| Power Solutions International | Wood Dale | All Other Miscellaneous Fabricated Metal Product Manufacturing 332999 | UNVERIFIED | 6.7 KM |
| Conley Precision Engines INC | Glen Ellyn | Other Engine Equipment Manufacturing 333618 | UNVERIFIED | 6.5 KM |
| 1465 | Itasca | Turbine and Turbine Generator Set Units Manufacturing 333611 | LIKELY ACTIVE | 8.9 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 9 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | APR 2026 | APR 2026 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | SAM GOV | APR 2026 |
| CAGE CODE | SAM GOV | APR 2026 |
| CITY | SAM GOV | APR 2026 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| NAME | SAM GOV | APR 2026 |
| REGISTRATION EXPIRATION | SAM GOV | APR 2026 |
| STATE | SAM GOV | APR 2026 |
| WEBSITE | SAM GOV | APR 2026 |
| YEAR ESTABLISHED | SITE YEAR | AUG 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.