Collection
Where it applies, we arrange collection of your machine or component at no charge.
24-Hour Rush Repair
On the gearbox bench · Fontana, CA
Gearbox Rebuilding in Fontana
Rebuilding a gearbox at our Fontana shop is treated as a manufacturing job — never a quick wash and reseal. Once the box is stripped, each gear, shaft, bearing surface and housing bore gets measured and documented; anything worn is either renewed or manufactured in our own shop, and the finished unit is assembled to specification and put through testing before it goes out the door.
On the gearbox bench · Fontana, CA
What goes into a rebuild done properly
The unit is fully dismantled and cleaned, gear teeth are examined for pitting, scoring and fatigue, bearings and seals are renewed, and shafts are repaired or manufactured. Where fretting or spin damage has marked the housing and bores, those surfaces are restored; assembly then sets backlash and bearing preload correctly before run testing. Every recommendation is backed by photographs of the failed parts and their measurements — what we see is what you see.
Brands we serviceFalkFlenderSEW-EurodriveRossiNordBonfiglioliSumitomoDavid BrownHansenEaton
Gearbox Rebuilding in Fontana · Our Fontana, CA workshopThe advantage when a box is obsolete
Plants keep gearboxes in service for decades, well beyond the point where the manufacturer still supports them with parts. Because we manufacture gears and reverse engineer them, a discontinued gear is simply measured and cut here — which is why older industrial boxes travel to Fontana from across Southern California. Regular hours run Monday–Friday 6 AM–5 PM, rush service runs around the clock, and pick-up, delivery and quotes are free.
- Rebuilding gearboxes for industry and plants
- Rebuilding gearboxes for trucks and equipment
- Manufacturing gears, shafts and housings
- Restoring bearings, seals and fits
- Rebuilds on emergency and rush timelines
How every repair moves through the shop: 8 steps
From your first phone call through final testing, here is how a job moves through the shop.
Inspection
We strip the unit down and assess the full extent of the failure.
Photo & video record
We photograph and film what we find, so the repair discussion is based on evidence.
Written quote
You receive a written price for the recommended scope before any work starts.
Approval
Together we agree the scope, the priority and the most sensible way ahead.
Manufacturing
Any parts the job needs are machined, welded, rebuilt or reverse engineered in-house.
Testing
Nothing leaves until operation and workmanship have both been checked.
Return delivery
The finished machine or component goes back to you ready for service.
Questions customers ask us
How much time does a gearbox rebuild need?
That hinges on the box itself and on what the inspection turns up — renewing bearings and seals on a straightforward unit takes days, while manufacturing obsolete gears adds time on the machines. Your quote sets out a practical timeline.
Can you rebuild a gearbox after the manufacturer has stopped supporting it?
Yes — boxes arrive here for exactly that reason all the time. The discontinued components are reverse engineered and manufactured by us.
More services you may need
Down right now? Ring the round-the-clock rush line.
(949) 400-2937Book a service visit or start a repair order
Ask for a service visit.
Tell us the make and model, what it is doing, where it sits, how urgent it is and when suits you. The form opens your details as a text message to John, so you can check everything before you hit send.