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24-Hour Rush Repair
Gearbox repair · Eisenbeiss
Eisenbeiss Gearbox Repair in Fontana
When a Eisenbeiss gearbox starts making noise, running hot or shedding metal into its oil, the machine behind it is living on borrowed time. We rebuild Eisenbeiss gearboxes working in Austrian heavy gear units in steel mills, extruders and heavy process industry at our Fontana shop at 14166 Whittram Ave — complete teardown, gear-by-gear measurement, bearing and seal renewal, and in-house gear manufacturing when a gear is worn, chipped or no longer supplied. The finished box is set to specification for preload and backlash and run-checked before it leaves, not simply put back together and hoped for.
Gearbox repair · Eisenbeiss
How Eisenbeiss gearboxes wear — and what we do about it
The Eisenbeiss units that reach our bench most often show heavy-load tooth contact fatigue, mill-duty shock damage, and large thrust and radial bearing wear in slow-speed, high-torque service. At teardown we record backlash, tooth contact patterns, bearing condition, shaft wear and housing bore condition before anything is cleaned, so the quote is built on the box you actually have rather than a catalogue guess. Worn gears can be rebuilt up in some cases or replaced with gears we cut ourselves — ring gears, helical, bevel, herringbone and worm work is all done in this shop — which keeps an older or discontinued Eisenbeiss unit in service instead of scrapped. Housings are checked for bore wear and misalignment, seals and bearings are renewed as a set, shafts are repaired or manufactured where scoring demands it, and the rebuilt gearbox is assembled, set up and run-checked before release.
Brands we serviceEisenbeissFalkFlenderSEW-EurodriveHansenNordSumitomo
Eisenbeiss Gearbox Repair in Fontana · Fontana, CAOne Fontana shop for gears, machining and rebuilds
Gear cutting, machining, rebuilding and testing all happen at 14166 Whittram Ave, Fontana, CA 92335 — so a Eisenbeiss gearbox job never waits on an outside machine shop. Regular hours are Monday to Friday, 6 AM to 5 PM, with 24-hour rush and emergency service every day of the year, 365 days. Talk to John Clark's team on (800) 821-3404 or (949) 400-2937, or write to [email protected], for a free quote on your gearbox.
- Eisenbeiss gearbox teardown, inspection and full rebuild
- Replacement gears manufactured in-house, including discontinued gears
- Bearing, seal and shaft renewal set to specification
- Backlash and preload set and run-checked before release
- 24-hour rush and emergency gearbox service, 365 days
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
Do you take on large Eisenbeiss mill gear units?
Yes — large, slow-speed, high-torque boxes are measured and quoted at teardown like any other unit here; gears too large or worn for restoration are cut in-house.
What are the warning signs a gearbox needs attention?
New whine or rumble, rising operating temperature, metal particles in the oil, backlash you can feel at the shaft, vibration under load and leaking seals. Caught early, most boxes need bearings, seals and setup rather than new gears.
Do you handle rush gearbox jobs?
Yes — emergency and rush repair runs 24 hours a day, every day of the year. Call (800) 821-3404 or (949) 400-2937.
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.