Industrial Gearbox Engineering: Repair, Custom Gears and Reverse-Engineered Components
We rebuild industrial gearboxes of any make, cut replacement gears to order, and reverse engineer shafts and drive components that are no longer manufactured. If the housing is sound, the unit can usually stay in service.
What we take in
We are not tied to a product range. The work arrives as a gearbox on a pallet, a worn gear in a crate, or a photograph of a nameplate nobody can trace.
- Parallel shaft, helical and double helical reducers
- Bevel and right-angle drives
- Planetary and epicyclic gearboxes
- Worm and worm-helical units
- Shaft-mounted and screw-conveyor drives
- Gear couplings, splined shafts and scroll shafts
- Mill and kiln centre drives
- Winch, hoist and slew drives
- Custom one-off gear sets to drawing or sample
Strip, inspect, report
Before anything is quoted for replacement, the unit is cleaned, measured and reported on. You get the findings and the options, including the option that it is not worth rebuilding.
Gear and shaft manufacture
Spur, helical, double helical, bevel, worm, planetary and internal gears; pinion, rotor and scroll shafts; splines and gear couplings.
Reverse engineering
From the worn part, with no drawings. Tooth geometry, fits, material and heat treatment are established from the component and the assembly it came out of.
Why plants call us rather than the OEM
Almost always one of a short list of reasons.
| What fails | What we supply |
|---|---|
| The OEM no longer exists or has withdrawn support | Internals reverse engineered so the existing housing stays in service |
| Quoted lead time from the OEM is longer than the outage | Manufacture to the existing geometry, scheduled to the shutdown date |
| A one-off gear with no catalogue equivalent | Cut to drawing or to sample |
| Repeated failure of the same component | Inspection report identifying whether it is wear, misapplication or a design limitation |
| Housing is good, internals are scrap | New gear set to the existing centres, shafts and bearing fits |
| Obsolete shaft or spline with unusual fits | Machined complete to the measured fits |
Working from no drawings
Most of the drive components we are asked for are no longer manufactured, and the original drawings are long gone. We reverse engineer from the worn part itself: the component is measured, the tooth geometry and fits are established, material is confirmed, and a replacement is cut to suit the existing housing, shafts and bearings so nothing else in the assembly has to change.
Where a gear has failed because of a design limitation rather than wear, we will say so and propose the change rather than reproduce the fault.
Quality and documentation
Euro Gear operates an ISO 9001:2015 certified quality management system. EN 10204 3.1 material certification is available on request, with mill traceability. Components bound for the United Kingdom or European Union ship as partly completed machinery with a Declaration of Incorporation.
Lead times
We are built around planned work: shutdowns, turnarounds and scheduled overhauls booked in advance, where the component has to be right and on site for a known date. Tell us the outage date and we will tell you honestly whether we can meet it. We do not offer field service or emergency breakdown attendance.
Common questions
- Do you repair gearboxes you did not manufacture?
- Yes. Most of what we see is other makers’ equipment, often decades old.
- Can you work with no drawings at all?
- Yes, and it is routine. We establish the geometry from the worn component and its mating parts.
- Will you tell us if a rebuild is not economic?
- Yes. The inspection report says what we found and what we recommend, including when replacement is the better answer.
- Do you offer emergency or field service?
- No. We are a manufacturing shop focused on planned and scheduled work.
- How do we start an enquiry?
- Send photographs of the nameplate and the component, and the outage date if there is one. Drawings are welcome but not necessary.
Send us the part
A photograph of the nameplate and the worn component is usually enough for us to tell you whether we can help. Drawings are welcome but not required.