Vibration Monitoring Software | AI Predictive Maintenance

By Riley Quinn on August 18, 2026

vibration-monitoring-software

A vibration severity chart only prevents a failure if a Zone C reading turns into a job somebody completes. Oxmaint ingests data from wired and wireless sensors continuously, classifies every reading against the standard your machine group falls under, watches the trend rather than only the threshold, and raises a prioritised work order the moment a developing fault appears. Start a free trial or book a reliability demo to see your own rotating assets trended.

Predictive & AI

Vibration Monitoring Software

Most sites already collect vibration data. Far fewer can tell you which readings moved this month, which machines are drifting toward Zone C, and which findings became work orders. That gap is where bearings still fail on monitored equipment.

Reading the zones, the way the standard defines them

ISO 20816-3 replaced ISO 10816-3 in 2022, and the zone boundaries carried straight over. A reading judged against either gives the same verdict.

3.2 mm/s
A B C D
01.42.87.1mm/s RMS
Zone ANewly commissioned or reconditioned machines.
Zone BAcceptable for unrestricted long-term operation.
Zone CNot suitable for long-term running. Remedial action required.
Zone DDangerous. Damage could occur. Immediate action.

Worked example: 3.2 mm/s RMS on a 55 kW motor bolted to a concrete floor sits in Group 2, where the boundaries are 1.4, 2.8 and 7.1. That reading is Zone C, so corrective work gets scheduled. Boundaries differ by machine group and foundation. Book a demo to see yours configured.

The zone tells you there is trouble. The spectrum tells you why

A rising broadband velocity is a trigger to look deeper, not a diagnosis. Three signatures cover most of what you will find.

Unbalance Peak at 1x running speed A dominant single peak at shaft speed, usually radial. Often the cheapest fault on the list to correct.
Misalignment Peak at 2x running speed Twice shaft speed dominating, frequently with an axial component. Points at coupling and mounting rather than the bearing.
Bearing defect Bearing defect frequencies Energy at calculated outer race, inner race, ball and cage frequencies. Geometry dependent, so the bearing must be identified.

Oxmaint holds the bearing detail against the asset, so defect frequencies are calculated rather than guessed at, and the trend is judged per machine. Book a demo to see a spectrum interpreted against an asset record.

Why a monthly route misses developing faults

Route-based collection gives you twelve data points a year on each machine. A bearing that begins to degrade in week two of a cycle has four weeks to progress before anybody looks.

Vibration warns first, then the window closes

Vibration change appears well before heat, and heat well before anything audible. The value of that lead time depends entirely on whether anyone is looking during it. Continuous collection turns twelve annual snapshots into a live trend, and the alert reaches a person rather than a spreadsheet.

Continuous monitoring does not replace a skilled analyst. It makes sure the analyst is looking at the right machine. Book a demo to compare your route data against a live trend.

Getting the measurement right

Inconsistent measurement makes trending worthless. Four rules cover most of it.

01
On the bearing housingAs close to the bearing as practical, on a solid surface. Not on a guard, cover or fan cowl.
02
Same point, same axis, every timeHorizontal, vertical and axial each tell you something different. Moving the point invalidates the trend.
03
Steady state onlyHigher readings during run-up, coast-down and critical speed passage are expected. Judge at operating speed.
04
Record load and speedA reading without operating context cannot be compared with the one before it. Log both alongside the value.

If vibration stays high after the machine reaches operating speed, that is a persistent fault rather than transient resonance. Book a demo to see how readings are captured and normalised.

Which assets to instrument first

Continuous sensors belong on the machines where a seizure stops production or the repair is measured in weeks. Everything else stays on route.

PumpsCavitation, unbalance and bearing wear all show clearly. The most commonly monitored asset class.
Motors and drivesElectrical and mechanical faults both surface in the spectrum. Pair with thermal for winding condition.
GearboxesMesh frequencies and sidebands give early warning that oil analysis alone can miss.
CompressorsReciprocating units fall under their own part of the standard, with different limits and measurement points.
Fans and blowersBuild-up and erosion cause progressive unbalance. Trend movement is usually visible long before alarm.
Critical rotating plantAnything where the spare is not on the shelf and the lead time runs into weeks.

Machines above roughly 15 kW running between 120 and 30,000 rpm fall within the general industrial scope of the standard. Book a demo to prioritise your own asset list.

Questions we get asked

Does Oxmaint supply the sensors? Oxmaint is the analysis and workflow layer. It accepts data from wired and wireless sensors and from handheld route collectors.
Do we still need an analyst? For diagnosis, yes. The platform tells you which machine to examine and preserves the history behind it.
Which standard does it use? Zone classification follows ISO 20816, configured per machine group and foundation type against your own assets.
Can we keep our existing route programme? Yes. Route readings and continuous sensor data sit on the same asset trend rather than in separate systems.
What happens when a limit is crossed? A prioritised work order is raised against the asset with the reading and trend attached, then tracked to closure.
Will it work with our existing CMMS? Yes. Oxmaint connects to existing systems rather than requiring you to replace what already works.

Something not answered here? Book a demo and ask directly.

Bring your last route report

In thirty minutes we will trend it against the asset, classify the readings by zone and show you which machines are drifting rather than merely alarming. No obligation, and the free trial runs without a credit card.


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