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Coordinate free equipment or component pick-up when applicable.
24-Hour Rush Repair
Industrial gearbox bench · Fontana, CA
Bonfiglioli Gearbox Repair in Fontana
Bonfiglioli gearboxes are everywhere power needs to be reduced and turned — conveyors, mixers, cranes, packaging lines, and the planetary drives under travel and slew functions on mobile equipment. When a Bonfiglioli unit gets noisy, hot, or starts leaking and losing drive, our Fontana shop does the full job under one roof: teardown and inspection, gear measurement, rebuild, and manufacture of replacement gearing for units whose parts are slow or no longer supplied.
Industrial gearbox bench · Fontana, CA
Helical, bevel, worm and planetary Bonfiglioli drives
Each Bonfiglioli family fails differently, and the bench treats it that way. Helical and bevel-helical units are checked for tooth wear, bearing fits and shaft condition. Worm drives are measured for wheel and worm wear and mesh geometry, because a wheel cut to the wrong profile runs hot and short-lived. Planetary sets are inspected planet by planet for gear, pin and carrier wear. Gearing worn past limits is reverse-engineered from the original parts and cut new in our own gear shop, matched to ratio and center distance.
Brands we serviceBonfiglioliBreviniSEW-EurodriveFlenderFalkNordMotovario
Bonfiglioli Gearbox Repair in Fontana · Fontana, CARebuild the drive you own, keep the footprint you have
A gearbox is bolted, coupled and aligned into a machine built around its footprint. Rebuilding the Bonfiglioli unit you own keeps its housing, mounts and shafts exactly where they belong, instead of re-engineering the machine around a substitute. Regular hours are Monday-Friday 6 AM-5 PM, and the rush line runs 24 hours a day, every day of the year. Quotes are free and pick-up and delivery are free — you talk directly with John Clark.
- Bonfiglioli helical and bevel gearbox rebuilding
- Worm gearbox and planetary drive repair
- Reverse engineering of obsolete gearing
- Gear, shaft and housing-bore renewal
- Bearing and seal renewal to build clearances
Our 8-step repair process
A clear path from the first call to a tested component or machine returned to work.
Inspection
Disassemble and evaluate the complete failure.
Photos & video
Document condition and findings for a clear repair conversation.
Repair quote
Define the recommended work and quote before proceeding.
Approval
Confirm scope, urgency and the practical path forward.
Manufacturing
Machine, weld, rebuild or reverse engineer required components.
Testing
Verify operation and workmanship before release.
Shipment
Return the completed component or equipment to service.
Frequently asked questions
Can you make gears for a Bonfiglioli gearbox that is no longer supported?
Yes — that is core work for our gear shop. We measure the worn gearing, work out the original geometry, and manufacture replacements matched to the drive's ratio and center distance.
My Bonfiglioli drive runs hot and noisy. Should I keep running it?
No — heat and noise are wear accelerating. Continued running can turn a rebuildable gearbox into scrap. Shut it down and have it inspected; we tear down and measure before quoting.
Related services
Emergency breakdown? Call the 24-hour rush line.
(949) 400-2937Schedule service or open a repair order
Request a service call.
Include the make, model, symptoms, location, urgency and preferred service time. Your details open in a text to John so you can review them before sending.