Pillar 2 of 8 · ultrasonic diagnostics
Acoustic Bearing Lubrication Monitoring in Kazakhstan
📸 Photo: an operator wearing PPE holds a LUBExpert unit while lubricating an electric motor bearing at an industrial plant
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Acoustic bearing lubrication monitoring — the second of 8 pillars of ultrasonic diagnostics — uses a high-frequency acoustic signal (20–100 kHz) to precisely determine a bearing’s lubrication needs. According to SDT data, fewer than 40% of bearings reach their rated life because of incorrect lubrication: over-greasing or under-greasing. The patented LUBExpert system solves this problem, turning lubrication from a scheduled procedure into a scientifically grounded, condition-based process.
LUBExpert connects to a bearing via a magnetic ultrasonic sensor and analyzes the friction acoustic signal in real time. As the operator adds grease, the instrument shows the signal trend and recommends stopping at the optimal moment — before over-lubrication sets in. A built-in database of more than 10,000 bearing types automatically calculates the correct grease quantity for SKF, FAG, NSK and other manufacturers.
KEG TRK is the official supplier of SDT Ultrasound Solutions in Kazakhstan. We supply LUBExpert, LUBExpert ON-GUARD and LubeChecker to enterprises in Almaty, Astana, Atyrau, Pavlodar, Shymkent, Kyzylorda and across Kazakhstan, providing staff training in the acoustic lubrication methodology, an official warranty and service support.
Applications of acoustic bearing lubrication monitoring
One instrument — full control of your lubrication program, from manual to automatic.
Acoustic lubrication in Guided mode
LUBExpert walks the operator through every step: selects the bearing from the database, calculates the grease quantity, tracks the signal in real time, and shows when to stop. Ideal for launching a program.
Free mode for experts
Free Mode gives experienced operators full control over lubrication parameters. Flexible threshold settings, manual data entry, and support for non-standard equipment — with no template constraints.
Bearing database
A built-in database of thousands of bearings automatically calculates lubrication parameters for SKF, FAG, NSK and other manufacturers. Every bearing’s history is stored on the device.
Automation — LUBExpert ON-GUARD
A stationary, condition-based automatic lubrication system powered by the LUBrain algorithm. Up to 8 channels, a web server, and MODBUS TCP for SCADA integration. Runs unattended 24/7.
How acoustic bearing lubrication monitoring works
Three simple steps from connecting the sensor to documenting the result.
Connect the sensor to the bearing
Attach the LUBExpert magnetic sensor to the bearing housing. The instrument reads the baseline acoustic signal level — the reference point for this bearing.
Add grease in small increments
Apply grease in small amounts while watching the real-time readings. LUBExpert displays the signal level: a drop means improvement, a rise signals the onset of over-lubrication.
Get the result and document it
The instrument automatically records the lubrication result (GOOD/BAD/SUSPECT) and stores the data. Sync with UAS3 software to manage the program and generate reports.
Benefits of acoustic bearing lubrication monitoring
Measurable results for industrial plants in Kazakhstan.
Prevents over-lubrication
Excess grease builds up pressure, causes overheating, damages seals, and accelerates grease degradation. LUBExpert shows the exact moment to stop.
Eliminates under-lubrication
Insufficient lubrication is the leading cause of bearing failure. The system guarantees the correct amount is applied, even on hard-to-reach equipment.
Extends service life 3–5×
Correct, condition-based lubrication (instead of a fixed schedule) extends bearing life by 3–5 times. A single instrument pays for itself after preventing just 2–3 failures.
Saves 30–50% on lubricant
Eliminating excess grease application reduces lubricant consumption. Plants typically report savings of 30 to 50% on grease every year.
Automatic reporting
Every lubrication session is automatically logged: bearing, date, operator, grease quantity, and result (GOOD / BAD / SUSPECT) — ready for audits and KPI tracking.
Fast onboarding
Guided Mode’s step-by-step instructions let you launch an acoustic lubrication program after just one day of training — no ultrasonic diagnostics expertise required.
Want to optimize your plant’s lubrication program?
Our specialists will provide a free assessment of your current program and recommend the optimal LUBExpert solution.
Request a consultationInstruments for acoustic bearing lubrication monitoring
From the portable LUBExpert to the automatic ON-GUARD system — choose the right fit for your task.
LUBExpert
Portable systemThe patented acoustic bearing lubrication system. Guided and Free modes, a bearing database, and UAS3 synchronization.
Best for: Route-based lubrication programs, any fleet size
LUBExpert ON-GUARD
Automatic 24/7A stationary, condition-based lubrication system. LUBrain algorithm, 8 channels, web server, MODBUS TCP.
Best for: Critical equipment, hard-to-reach points
LubeChecker
SpecializedA specialized detector for lubrication quality control. Simple, reliable, and operator-friendly.
Best for: Basic lubrication control, low-cost solution
SDT340
Multi-sensorA multi-sensor platform with LUBExpert support. Ultrasound + vibration + infrared in one instrument.
Best for: Comprehensive diagnostics plus acoustic lubrication
Explore other pillars of ultrasonic inspection
The SDT methodology covers 8 application areas — one instrument handles every task.
Frequently asked questions about acoustic bearing lubrication monitoring
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