Brands / Boston Gear
Boston Gear Reducer and Gearbox Repair
A Plus Electric Motor Repair, Inc. repairs and rebuilds Boston Gear speed reducers, gearmotors and gearboxes at our shop in St. Charles, Illinois. Boston Gear worm gear reducers are some of the most common gearboxes on conveyors, mixers and packaging equipment in the Midwest. We repair them for customers throughout northern Illinois, northwest Indiana and southern Wisconsin.
& sell
- Service
- Repair, rewind, replace
- Standard
- 7–10 days
- Rush
- 3–5 days
- After hours
- (630) 283-8433
Free within 50 miles · Calls our office
Boston Gear Equipment We Repair
What to send us
Send a photo of the reducer’s nameplate. On Boston Gear reducers, the catalog number identifies the series, size, ratio and mounting. Include the motor nameplate if one is attached, and how quickly you need the unit back.
Schedule a Free PickupCall (630) 283-3569Request a Quote OnlineWhy plants send their Boston Gear work to A Plus
We come get it
Free pickup and delivery within 50 miles of our St. Charles shop, with pickup or freight from farther out.
Nothing gets sent out
Winding, testing, dynamic balancing and machining all happen in our own shop. We rewind with Grade H magnet wire and Elantas varnish, a step above what most shops use.
7–10 days, or 3–5 rush
Time-critical jobs are worked through nights and weekends when a line is down.
EASA member shop
EASA, the Electrical Apparatus Service Association, is the international trade association for motor repair shops. Members get its engineering support, technical data and recommended repair practices.
One year, every repair
And when replacing is faster, same-day delivery on new motors.
Our Boston Gear repair process
Incoming inspection
We record the model, ratio and mounting, and check for leaks, noise and backlash.
Teardown
We drain the unit and inspect gears, worm, bearings, seals and housing.
Failure analysis
Wear patterns tell us whether the cause was lubrication, overload, misalignment or contamination.
Written quote
You receive a rebuild quote, and a replacement quote when a new Boston Gear unit is the better choice.
Rebuild
New bearings and seals, gear sets where needed, shaft machining and fresh lubricant.
Run testing
before the unit is returned.
Common Reasons Boston Gear Gear Reducers Come In
Need a new Boston Gear unit instead?
We sell new and surplus motors, gearboxes and drives too. Call with the nameplate and we will quote a matched replacement alongside the repair, so you can compare and decide.
Straight answers on Boston Gear
Q1Can you match the ratio and mounting exactly?
Yes. Send the catalog number from the reducer nameplate and we will rebuild it to the same ratio and mounting, or quote an exact replacement.
Q2Is a small worm reducer worth rebuilding?
Small, common reducers are often cheaper to replace, and we will tell you that. Larger units and hard-to-get configurations are usually worth rebuilding.
Q3Why is our reducer running hot or leaking?
Usually worn seals, low or wrong oil, overload or a worn worm gear set. We find the cause at teardown so the rebuild lasts.
Q4Our motors keep failing. Can you tell us why?
Usually the motor is pointing at something upstream. The most common culprits are incoming power problems, like voltage imbalance, spikes and drive-related shaft currents, and a harsh environment: heat, moisture, dust and washdown chemicals. Misalignment and bearing trouble round out the list. We tear every motor down, find what actually took it out, and tell you, so the replacement does not go the same way.
Other brands we repair & sell
Boston Gear unit 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. Boston Gear, Altra Industrial Motion and Regal Rexnord 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 the manufacturer.