Services / Gearbox Repair
Gearbox & Gear Reducer Repair
A Plus Electric Motor Repair, Inc. repairs industrial gearboxes, gear reducers and gearmotors at our shop in St. Charles, Illinois. Because we repair motors too, we rebuild the complete drive, motor and gearbox together, instead of sending you to two different shops.
From small worm reducers to gearboxes that need the crane to move, every unit is torn down, measured, rebuilt and run tested before it goes back.
& sell
- Service
- Rebuild, repair, replace
- Standard
- 7–10 days
- Rush
- 3–5 days
- After hours
- (630) 283-8433
Free within 50 miles · Calls our office
Gearboxes and reducers we service
All major brands, including SEW-Eurodrive, NORD and Boston Gear. Send the nameplate and we will confirm your unit.
What to send us
A photo of the nameplate, the ratio or output speed if you know it, what the unit drives, and how quickly you need it back.
Schedule a Free PickupCall (630) 283-3569Request a Quote OnlineMotor and gearbox, one shop
- One quote, one warranty. Gear unit repair, motor rewinding, balancing and machining are all done in house.
- Shafts made here. Worn or broken shafts are repaired or made new in our machine shop.
- Written estimate within one business day of inspection.
- Free pickup and delivery within 50 miles of St. Charles, and a crane in the shop for the heavy ones.
Where our gearbox repairs go
Conveyors and material handling, mixers and agitators, packaging lines, extruders, cooling towers, and water and wastewater equipment. Conveyor running on a drum motor instead? See drum motor repair.
Gearbox work in our St. Charles shop
Real jobs, not stock photos: teardown, rebuild and refinish on large industrial gear units.
Our gearbox repair process
Inspection
We record the nameplate, check the oil and note the symptoms you are seeing.
Teardown
Gears, bearings, seals, shafts and housing are cleaned and measured, plus the motor on gearmotors.
Written estimate
Within one business day, with a replacement quote when a new unit makes more sense.
Rebuild
Bearings and seals replaced, shafts repaired or machined, worn gears replaced as needed.
Run test
Reassembled, filled with the correct oil and run tested before it goes back.
Signs your gearbox needs repair
Need a new gearbox instead?
We sell new and surplus gearboxes, gearmotors and drives. Call with the nameplate and we will quote a matched replacement alongside the repair, so you can compare cost and lead time.
Straight answers on gearboxes
Q1Can you repair the motor and gearbox together?
Yes. Most of our gearmotor repairs include both, so the whole drive comes back tested and ready to install.
Q2Is it worth rebuilding, or should we buy new?
It comes down to cost and lead time. A large gear unit can take weeks to get new, and a rebuild is often faster. We quote both so you can decide.
Q3How big a gearbox can you handle?
Big ones. Our shop has overhead cranes for heavy gear units. Call with the nameplate or dimensions and we will confirm.
Q4Do you pick up?
Yes. Pickup and delivery are free within 50 miles of St. Charles. Farther out, call (630) 283-3569 to arrange pickup or freight.
Gearbox down?
Office: Monday through Friday 8:00 AM to 4:30 PM, Saturday 8:00 AM to 12:00 PM. Emergency line answered 24/7.
A Plus Electric Motor Repair, Inc., 3483 Swenson Ave, St. Charles, IL 60174. Brand names are trademarks of their respective owners. A Plus Electric Motor Repair, Inc. is an independent repair facility and is not affiliated with or authorized by these manufacturers.