Bearing Monitoring

Bearing Monitoring: Accelerometer + Edge Computing Data Logger

What is the biggest fear for factory production lines? Sudden bearing failure that forces the entire line to shut down, causing repair costs to skyrocket and order deliveries to be delayed. In workshops that operate unmanned year-round, with high noise levels and harsh operating conditions, manual inspections are particularly challenging. Today, we’d like to share a specialized online bearing monitoring solution that uses low-cost vibration sensors to detect even the slightest signs of bearing damage in real time, providing early fault warnings and putting an end to unexpected downtime once and for all!

I.Workshop Challenges: Traditional inspections cannot keep pace with the rate of equipment wear and tear

Many production workshops have complex environments: they are extremely noisy, have strong odors, and production lines are often left unattended for long periods. Relying on manual periodic inspections has three major drawbacks:

1. It is difficult to detect subtle early-stage wear in bearings with the naked eye or by ear; by the time abnormal noises become noticeable, the bearings are already severely damaged;

2. Sudden bearing failures can bring production lines to a complete standstill, resulting in cumulative losses from downtime, emergency repair labor costs, and replacement part costs;

3. Manual inspections are time-consuming and labor-intensive, and they cannot provide 24-hour, uninterrupted, real-time monitoring of equipment status.

To address these challenges, we use low-frequency, high-sensitivity accelerometers to detect micrometer-level changes in bearing vibration, issuing alerts at the earliest stages of a potential failure to minimize downtime losses at the source.

II. Core Hardware: Accurate Detection of Faint Vibration Signals from Bearings

1. Core Sensor: Low-frequency, high-sensitivity piezoelectric accelerometer

Based on on-site measurement data, the operating frequency of the production line bearings is 16.6 Hz, with a maximum amplitude of only 0.03 g. Ordinary sensors struggle to detect such faint vibrations, making this solution a perfect fit for on-site operating conditions:

Ultra-high sensitivity, with a resolution as low as 0.0001 g, accurately detects even minor bearing wear and internal ball damage;

Ultra-wide low-frequency range: 0.1–1000 Hz (±1 dB), fully covering the 16.6 Hz operating frequency of field bearings;

Field Testing: When the equipment is operating normally, the waveform remains stable; after simulating a bearing impact, the waveform immediately exhibits noticeable fluctuations, making the fault signal clearly visible;

Durable Industrial Design: 304 stainless steel housing, wide operating temperature range of -40°C to +120°C, 500g shock resistance, suitable for harsh factory environments; built-in IEPE amplification allows operation when paired with a data logger’s constant current source, ensuring simple and stable installation.

2. Supporting data collection terminals:GN9004A Four-Channel Edge Computing Data Logger

Vibration signals captured by the sensors are processed and analyzed in real time by the edge data logger, eliminating the need for manual data export: 4-channel synchronous acquisition, parallel sampling at up to 128 kHz per channel, bandwidth DC–12 kHz, with sampling performance far exceeding on-site requirements; It features built-in IEPE constant-current excitation for direct connection to vibration sensors, supports ±5 V voltage input, and employs 16-bit high-precision analog-to-digital conversion, with a measurement error of <0.5%;Ultra-Fast Response: Detection and response time for impacts and abnormal vibrations is less than 5 ms, triggering an alarm immediately upon detection of an anomaly; Industrial-Grade Communication: Powered by 24V DC, with Ethernet output, and supports industrial protocols for integration with shop floor PLCs, allowing real-time bearing data to be viewed remotely from the office; High Expandability: Features a built-in RS485 expansion port and 4 digital input/output channels, enabling integration with audible and visual alarms and shop floor control systems.

3. Complete set of accessories, suitable for workshop installation conditions

Given the on-site conditions—which include minimal moisture, low dust levels, and curved equipment mounting surfaces—all accompanying components were custom-designed to meet these specific requirements: Curved magnetic mounting plate: Fits snugly against the curved bearing housing, ensuring a secure hold and lossless transmission of vibration signals; L-shaped sensor connector: Fits tightly against the outer wall of the bearing, taking up no additional equipment space and allowing for neat wiring; Two-core shielded cable: Resists workshop noise interference, ensures stable transmission of vibration signals, and can be cut to length as needed.

III. Standard Complete Configuration, Ready for Immediate Use

Single-Point Standard Monitoring Kit, Ready for Deployment Right Out of the Box: 4 low-frequency vibration sensors + 1 four-channel edge data logger + 4 matching curved magnetic mounts + several two-conductor shielded cables

IV. Core Advantages of the Comprehensive Solution: Tangible Cost Savings and Efficiency Gains for Factories

24-Hour Unattended Monitoring

Without the need for frequent on-site inspections by workers, the equipment continuously collects vibration data online, allowing office staff to remotely monitor bearing operating conditions in real time. Early fault warnings help prevent unexpected downtime by detecting subtle vibrations caused by early bearing wear, pitting, or ball damage, and triggering alerts in advance. This enables scheduled maintenance without disrupting production schedules.

Designed for harsh workshop conditions

Operates reliably in high-noise, odor-prone, and wide-temperature environments; is shock- and interference-resistant; and requires only standard cables to meet operational needs.

Industrial-Grade Data Interoperability

The data collector connects directly to the shop floor PLC, and the data is integrated into the factory’s existing control system, eliminating the need to build a complex platform and keeping implementation costs low.

Significantly reduce overall production costs

Reduce losses from emergency shutdowns, lower the cost of consumables associated with frequent bearing replacements, and save on labor costs for routine inspections.

V. Applicable Scenarios

Online health monitoring of various types of long-term unattended automated production lines, fans, drive rollers, motor bearings, and rotating components of heavy-duty machining equipment; particularly suitable for early fault diagnosis in equipment with low-frequency, low-amplitude vibrations.

Yangzhou Xiyuan Electronic Technology Co.,Ltd.

#77 Yeqiao Road, Liandong U Valley slender West Lake Innovation port, building 10-2,Hanjiang District, Yangzhou,Jiangsu,China

Mobie Phone: +86 180-5105-8377

Tel: +86 514-82885589

Whatsapp:+86 182-6066-6867

Email: sale1@yzxyt.com

Fax: +86 514-82885089