Fatigue / severity
Velocity-based indicators help trend increasing mechanical stress and overall machine condition.
Permanent machine-condition monitoring for rotating assets, from established single-axis VVB monitoring to the newer VVB3 three-axis platform with surface temperature, onboard indicators and deeper analysis over IO-Link.

VVB sensors are intended for permanent monitoring of industrial machinery. The newer VVB3 generation expands the concept with three-axis acquisition, onboard processing, history and optional advanced analysis.
Velocity-based indicators help trend increasing mechanical stress and overall machine condition.
Peak acceleration supports detection of impacts, cavitation and transient mechanical events.
Acceleration-based values and surface temperature can indicate lubrication or friction-related deterioration.
VVB3 variants add unbalance analysis, raw waveform access and, on DataScience variants, BearingScout™ bearing analysis.
ifm positions the VVB platform primarily for rotating machines with continuous or partially continuous operation and a drive shaft.
Monitor developing unbalance, looseness, misalignment, friction, bearing deterioration and temperature trends near the bearing seat.
Combine general vibration trends with impact and friction indicators to detect changes associated with bearings, cavitation, pulsation and mechanical condition.
Suitable for distributed machine monitoring where an IO-Link infrastructure can carry condition values into the PLC and maintenance layer.

VVB3 acquires vibration in three axes and calculates machine-condition indicators locally. Onboard processing reduces the need to stream every raw data point continuously while raw waveform data remains available for deeper analysis.
The VVB family spans different generations and use cases. Three-axis capabilities apply to VVB3 models; do not generalise them to every VVB order number.

For straightforward permanent machine monitoring with factory-set machine optimisations.

Current Basic variants are designed for PLC integration with selectable x, y or z trend values.

For richer three-axis condition data and advanced bearing analysis in higher-level monitoring systems.
VVB0 and VVB3 specifications differ. The values here describe the current family routes and must not replace the individual ifm datasheet.
Choose the monitoring architecture according to machine complexity, required diagnosis depth and available control infrastructure.
| Requirement | Better route | Why |
|---|---|---|
| Simple analogue overall-vibration trend into PLC/VFD | VTV | 4–20 mA v-RMS is simpler when IO-Link and onboard diagnostics are unnecessary. |
| Permanent smart monitoring on simple rotating assets | VVB / VVB3 Best fit | Condition indicators are generated directly in the sensor and transmitted via IO-Link. |
| Multiple vibration points, frequency-selective diagnosis, complex machine kinematics | VSE + accelerometers | Programmable time/frequency-domain monitoring and multi-sensor architecture provide deeper diagnostic control. |