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Mechanical
Thermal Imaging

Infrared thermography inspections of motors, bearings and mechanical equipment to reduce unplanned downtime and support condition-based maintenance

✓ ITC Certified Thermographer

✓ SiteWise Gold Accredited

✓ EWRB Registered Electrician

✓ Trusted by Insurers

Thermal Imaging for Rotating Equipment

Mechanical wear can lead to overheating, equipment failure and costly downtime. Mechanical thermal imaging can reveal abnormal heating associated with excessive friction, inadequate lubrication, misalignment, overloading, worn bearings, slipping belts, and poor ventilation. These issues may not be apparent during routine visual checks.

A developing issue may appear as a localised hot bearing, an uneven gearbox temperature, or a component running warmer than comparable equipment. Comparing similar assets or trending the same asset over time can help show whether its condition is changing and where closer investigation may be required.

I assess surface-temperature patterns while equipment is operating under normal load. This provides a fast, non-contact way to inspect multiple assets with little or no disruption. Findings are documented with thermal and visual images, priority ratings and practical recommendations to help your maintenance team decide what needs attention next.

Learn more about how thermal imaging works →

Thermal image of a motor with a bearing failure in Auckland
Thermal image of a shaft bearing failure in Auckland

Benefits of Mechanical Thermal Imaging

Reduce Mechanical Failures & Downtime

Identify unusual heat before developing mechanical issues lead to equipment failure, production disruption or an unplanned maintenance shutdown

Support Condition-Based Maintenance

Use thermal inspection findings to plan maintenance, prioritise further investigation and track changes in asset condition over time

Identify Overheating Bearings & Components

Detect heat patterns linked to bearing wear, friction, poor lubrication, misalignment and excessive mechanical loading under normal operating conditions

When to Book Mechanical Thermal Imaging

Consider booking when:

  • You’re experiencing noise, vibration, overheating, or repeated bearing failures

  • You’ve had unexpected breakdowns, reduced output, or unplanned downtime

  • Assets have recently been installed, relocated or had major maintenance

  • You run critical plant with high duty cycles

  • You want an evidence-backed baseline for predictive maintenance and condition monitoring

  • Your site has harsh operating conditions that accelerate wear

    For sites with both electrical and mechanical risks, this service can be scheduled alongside electrical thermal imaging as part of one inspection.

Motors in a mechanical plant room in Auckland

Mechanical Assets Inspected

  • Motors, bearings, and drive systems

  • Pumps, valves, and associated equipment

  • Gearboxes, couplings, and transmissions

  • Conveyors, rollers, and belt systems

  • Fans, blowers, and HVAC equipment

  • Production and manufacturing machinery

Typical Issues Identified

  • Bearing overheating and lubrication issues

  • Excessive friction and drag

  • Misalignment indicators (couplings / drive systems)

  • Motor casing and drive system heat patterns

  • Hot spots on pumps, gearboxes and rotating equipment

  • Abnormal heating due to blocked airflow or loading issues

How It Works

① Scope & schedule

Tell me the site address, the purpose of the inspection and approximately how many assets need checking. Let me know about any concerns, such as bearing noise, overheating, vibration etc. I’ll confirm scope, pricing, and availability. 

② Inspect & capture evidence

I'll inspect the nominated mechanical equipment while it is running under normal load where practicable. I'll capture thermal and visual images and assess any unusual heat patterns.

③ Report & prioritise

You’ll receive a clear report with thermal and visual images, asset details, priority ratings, and practical recommendations to help prioritise maintenance, reduce unplanned downtime, and support ongoing equipment reliability.

Thermal image of pumps in an Auckland mechanical plant room

What You Receive

You’ll receive a mechanical thermographic report showing what equipment was assessed, what was found and what needs attention, including:

  • Site details, inspection scope and equipment operating conditions

  • Thermal and visual images with analysis for each finding

  • Colour-coded priority ratings so you can see what matters first

  • Practical recommendations and suggested maintenance steps

  • Repair record sections for documenting corrective work

  • An asset identification list suitable for maintenance planning

Each identified anomaly is documented on its own report page, so your maintenance team can locate the equipment, understand the temperature pattern and plan further investigation or corrective work.

If no abnormal heating is identified, the report still provides a formal record of the equipment inspected and can be retained as a reference for future condition-monitoring inspections. Reports are generally supplied within two business days.

Example mechanical thermal imaging report page in Auckland

FAQs

How much does a mechanical thermal imaging inspection cost?

Pricing depends on the number of assets being inspected, site complexity, reporting requirements, and travel. Many smaller sites can be inspected from $325 + GST, while larger facilities and ongoing maintenance programmes typically require a tailored quotation. Pricing can also be tailored for multi-site portfolios and ongoing inspection programmes. Contact Auckland Thermography for an upfront, no-obligation quote.

How long does mechanical thermography take?

Time depends on the number of assets, access and site conditions. Small sites can often be completed in as little as 1-2 hours, while larger or complex sites may require a full day or staged visits.

How often should an inspection be done?

Many sites schedule mechanical thermal imaging annually or alongside predictive maintenance programmes, depending on asset criticality, operating hours, environment, and breakdown risk. High-duty or critical plant may benefit from more frequent checks.

Do machines need to be running during the inspection?

Yes - thermal imaging is most useful when equipment is operating under normal load. Low load can reduce how meaningful the results are.

Will the inspection require equipment shutdowns?

Not usually. Most inspections are completed with equipment operating normally, however shutdowns may be required if safe access can’t be achieved or guards need to be removed (site dependent).

Can thermal imaging detect bearing failures?

Sometimes. A bearing problem may produce noticeable heat, often after the fault has developed. Thermal imaging works best alongside other checks, such as vibration analysis and lubrication inspection.

Do you provide a report suitable for insurers?

Yes – reports include thermal and visual images, findings, and priority ratings to support maintenance planning and insurer documentation.

What happens after you find a hotspot?

Findings are prioritised and reported with practical recommendations. Repairs are typically completed by your preferred maintenance technician, and a follow-up scan can confirm resolution if required.

What areas can’t be inspected?

Assets may be excluded where access is restricted, surfaces are not visible, safety requirements can’t be met, or mechanical load is too low to provide meaningful results.

Can you include an asset register in the report?

Yes - reports include an asset list with locations, IDs and status/priority ratings to support maintenance planning.

Need a Mechanical Thermal Imaging Inspection?

Tell me your site address, equipment details, and preferred timeframe. I’ll confirm scope, pricing, and availability.