Gearbox Repair Specialist
Chicago Gearbox Repair & Rebuild
IMR rebuilds Chicago Gearbox industrial drives for heavy-duty applications. All Chicago Gearbox drive types serviced with full in-house machining, gear cutting, and load testing.
The Chicago Gearbox Specialist in the Midwest
IMR rebuilds Chicago Gearbox industrial drives for heavy-duty applications. All Chicago Gearbox drive types serviced with full in-house machining, gear cutting, and load testing.
Chicago Gearbox drives are built for demanding industrial environments. IMR's in-house capabilities cover every phase of the Chicago Gearbox rebuild process — from precision bore machining to in-house gear cutting when OEM replacement gears are unavailable.
Chicago Gearbox Units We Rebuild
We work on the full range of Chicago Gearbox equipment — from legacy units to current production models.
Our Chicago Gearbox Rebuild Process
Every Chicago Gearbox rebuild follows a documented process — from teardown through load test. No shortcuts, no guesswork.
Teardown & Inspection
Complete disassembly with photographic documentation. Every gear, bearing, shaft, seal, and housing is inspected and measured against OEM specifications.
Failure Analysis
We identify the root cause — not just the symptom. Overloading, misalignment, lubrication failure, contamination, and fatigue are all documented before rebuild begins.
Precision Machining
Worn bores are re-machined to OEM tolerances. Shafts are repaired or replaced. Housings are cleaned, inspected for cracks, and restored to spec.
Component Replacement
Worn or damaged components are replaced — gears cut in-house to AGMA standards, bearings and seals replaced with OEM-equivalent or upgraded parts.
Assembly
Rebuilt units are assembled to OEM torque specs with fresh lubricant and new seals throughout.
Load Testing
Every major rebuild is load-tested on our 500 HP test stand. Vibration, temperature, and flow are verified before shipment.
Industries We Serve
Chicago Gearbox equipment is found in the most demanding industrial environments. We've rebuilt units for operations across every major heavy industry — often under emergency turnaround conditions.
View All IndustriesWhy Industrial Machine Rebuilders
50 years rebuilding Chicago Gearbox equipment. In-house machining. 36-month warranty. One shop that does it all.
Get a Quote
Have a Chicago Gearbox Unit That Needs Attention?
Send us the model number and a description of the failure. We'll confirm capability and turnaround — usually same day.