Absolutely. A failed gearbox doesn't automatically mean you need a new one.

Once the gearbox is stripped and assessed, it may be possible to repair or replace individual components such as gears, bearings, seals and shafts while retaining the main gearbox assembly.

For older, specialist or difficult-to-source gearboxes, repair can be particularly valuable. It can keep existing machinery in service without the cost, lead time or complications of sourcing a complete replacement.

Gearboxes are built to handle demanding applications, but they're not immune to wear and failure.

Common causes include bearing wear, damaged gears, poor lubrication, contamination, misalignment, overloading and excessive vibration. In some cases, the gearbox is simply reaching the end of its service life. In others, an underlying issue elsewhere in the drive system may be responsible.

The important question isn't just what failed? It's why did it fail?

You don't have to wait until the gearbox stops turning.

Changes in noise, vibration, temperature or performance can all indicate that something is developing inside the gearbox. Oil leakage, damaged seals and unusual running sounds are also worth investigating.

A gearbox that has started behaving differently is giving you useful information. Catching the problem early can mean replacing a bearing or addressing a lubrication issue rather than dealing with a much more serious gear or shaft failure later.

There's no one-size-fits-all gearbox overhaul.

The unit is stripped down so the condition of the internal components can be properly understood. Gears, shafts, bearings, seals, housings and associated components can then be measured and assessed for wear or damage.

Depending on what we find, the overhaul might involve anything from replacing bearings and seals through to repairing shafts, remanufacturing components or carrying out precision machining.

The work should be driven by the condition of the gearbox;  not a predetermined list of parts.

It depends on the gearbox, its condition and what's available as a replacement.

A replacement may make sense in some applications. In others, repairing the existing unit can provide a much quicker and more economical route back into production;  particularly where the gearbox is specialist, obsolete or built into an established machine.

Before committing to a replacement, it's worth finding out what can actually be repaired. You may not need to replace the gearbox at all.

It depends on what's happening inside the gearbox.

A bearing and seal replacement is a very different job from repairing damaged gears, machining a worn shaft or manufacturing an obsolete component.

That's why gearbox repairs are generally assessed individually rather than priced from a standard list. Once the unit has been examined, the extent of the work and the options available can be established.

For maintenance teams, that means you can compare the real cost of repair against replacement before making the decision.

Some gearbox repairs are relatively straightforward. Others involve specialist components, machining or manufacturing that naturally take longer.

The quickest route isn't always to replace the gearbox. If the right replacement isn't sitting on a shelf, repairing the existing unit, or manufacturing the component that's no longer available; can sometimes get you moving sooner.

For critical equipment, early assessment makes a difference. The sooner the gearbox is examined, the sooner the repair requirements, parts and timescale can be established.

Yes. A damaged component doesn't necessarily mean the complete gearbox is beyond repair.

Bearings and seals are routinely replaced when they have reached the end of their working life. Depending on the damage and application, shafts can be repaired or remanufactured, while gears and other specialist components can potentially be manufactured or refurbished.

This is where having repair and precision engineering capabilities together can make a real difference. The solution doesn't always have to come from a gearbox manufacturer's parts catalogue.

Yes, and this is where repairing the gearbox can become particularly worthwhile.

If a gearbox is obsolete, a replacement may be difficult to source, have a long lead time or require modifications elsewhere in the machine. That doesn't necessarily mean the gearbox has reached the end of its useful life.

We can assess the existing unit and determine whether its components can be repaired, refurbished or manufactured to specification.

Sometimes keeping an old gearbox running is the most sensible engineering decision.

You can't eliminate wear, but you can get much better at spotting it.

Regular checks of vibration, temperature, lubrication, noise and overall gearbox condition can reveal changes before they become failures. Condition monitoring can take this a step further, particularly on gearboxes where an unexpected breakdown would have a significant impact on production.

The goal is to replace "It failed" with "We knew it was deteriorating, and we planned the repair."

That's the difference between reactive maintenance and reliability-led maintenance.