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- Bently Nevada
- 330881-28-08-120-00-02
- PROXPAC XL Proximity Transducer Assembly
- USA
- 8 mm × 120 mm
- 0.31kg
- Xiamen, China
- New & In Stock
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330881-28-08-120-00-02 Technical Overview, Specifications, Applications, Advantages and Model Reference Guide
Product Overview
The 330881-28-08-120-00-02 is a precision industrial proximity probe designed for continuous monitoring of shaft vibration and displacement in rotating machinery systems. It is widely used in condition monitoring and machinery protection applications where stable, accurate, and real-time measurement of rotor behavior is required.
The probe operates using eddy current non-contact sensing technology. It measures the distance between the probe tip and a conductive metal surface without physical contact, enabling accurate detection of shaft position, radial vibration, axial displacement, and eccentricity.
Because the measurement is non-contact, there is no mechanical wear between the probe and the target shaft. This ensures long-term stability, high reliability, and consistent measurement accuracy even in harsh industrial environments.
The 120 mm probe length configuration provides a versatile installation option suitable for medium-depth mounting requirements in a wide range of rotating machinery systems.
Brand
Bently Nevada
The product belongs to a globally recognized industrial monitoring technology brand specializing in machinery protection systems, vibration analysis, rotor dynamics, and predictive maintenance solutions.
Its technologies are widely applied in industries such as power generation, oil and gas, petrochemical processing, mining, steel manufacturing, marine engineering, and heavy industrial operations.
The brand is known for delivering high-reliability sensors designed for continuous operation in harsh industrial environments.
Product Series
3300 XL 8 mm Proximity Transducer System
The 330881-28-08-120-00-02 is part of the 3300 XL 8 mm proximity transducer system, a widely used industrial platform for shaft displacement monitoring.
This system includes proximity probes, extension cables, and signal conditioning modules that work together as a complete measurement chain.
The series is known for high accuracy, excellent linearity, strong electromagnetic interference resistance, and long-term stability in continuous operation.
It is widely used in machinery protection systems to monitor vibration, shaft movement, and mechanical condition of rotating equipment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 330881-28-08-120-00-02 |
| Product Type | Proximity Probe |
| Series | 3300 XL 8 mm |
| Measurement Principle | Eddy Current Non-Contact Measurement |
| Probe Diameter | 8 mm |
| Probe Length | 120 mm |
| Measurement Function | Shaft Vibration, Axial Position, Radial Displacement |
| Target Material | Conductive Metal Surface |
| Output Signal | Analog Displacement Signal |
| Sensitivity | High Precision |
| Linearity | Excellent |
| Repeatability | High Stability |
| Response Speed | Fast Dynamic Response |
| Housing Material | Stainless Steel |
| Cable Type | Factory Integrated |
| Connector Type | Industrial Standard |
| Mounting Method | Threaded Installation |
| Environmental Resistance | Oil, Dust, Moisture Resistant |
| Temperature Range | Industrial Operating Range |
| Vibration Resistance | High |
| Shock Resistance | High |
| EMI Resistance | Strong Immunity |
| Corrosion Resistance | Excellent |
| Maintenance Requirement | Low |
| Operation Mode | Continuous Monitoring |
| Service Life | Long-Term Industrial Use |
| Dimensions | 8 mm × 120 mm |
| Weight (kg) | Approximately 0.31 kg |
Product Features
The 330881-28-08-120-00-02 provides stable and accurate non-contact measurement of shaft displacement in rotating machinery.
Its eddy current sensing technology enables precise detection of small changes in shaft position, supporting early identification of mechanical faults such as imbalance, misalignment, looseness, or bearing wear.
The 120 mm probe length offers flexible installation for medium-depth mounting requirements in industrial machinery.
The stainless-steel housing ensures durability and resistance to vibration, oil, dust, and temperature variations.
The probe is designed for continuous operation and delivers stable long-term measurement performance with minimal maintenance needs.
Its fast response capability allows real-time monitoring of dynamic shaft behavior in high-speed rotating equipment.
Working Principle
The probe operates using eddy current induction technology.
A high-frequency electromagnetic field is generated at the probe tip. When a conductive rotating shaft enters this field, eddy currents are induced on the metal surface.
These eddy currents change the electromagnetic impedance of the probe system. The variation is converted into an electrical signal proportional to the distance between probe and shaft.
Since the system is non-contact, it eliminates mechanical wear and ensures stable long-term operation.
Typical Applications
The 330881-28-08-120-00-02 is widely used in rotating machinery monitoring systems across industrial sectors.
Typical applications include:
- Gas turbines
- Steam turbines
- Hydro turbines
- Centrifugal compressors
- Industrial pumps
- Electric motors
- Generators
- Gearboxes
- Fans and blowers
- Refinery machinery
- Petrochemical compressors
- Offshore platforms
- Power plants
- Steel production systems
- Cement plants
- Mining machinery
- Paper mills
- Chemical processing systems
- Marine propulsion systems
- Medium to large rotating machinery installations
It is especially suitable for applications requiring balanced probe depth and installation flexibility.
Product Advantages
The 330881-28-08-120-00-02 provides reliable long-term measurement performance in demanding industrial environments.
Its non-contact design eliminates mechanical wear, improving durability and reducing maintenance requirements.
The probe delivers high accuracy and repeatability, ensuring reliable condition monitoring data.
Its stainless-steel construction provides strong resistance to vibration, oil, dust, and harsh environments.
Strong electromagnetic interference resistance ensures stable operation in electrically noisy industrial settings.
Fast response time enables early detection of mechanical issues.
Long operational life reduces maintenance cost and system downtime.
Recommended Models (Same Series / Related)
| Model | Product Type | Probe Diameter | Length | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 330881-28-08-070-03-02 | Proximity Probe | 8 mm | 70 mm | 8 × 70 mm | 0.27 kg |
| 330881-28-08-105-00-02 | Proximity Probe | 8 mm | 105 mm | 8 × 105 mm | 0.30 kg |
| 330881-28-08-120-00-02 | Proximity Probe | 8 mm | 120 mm | 8 × 120 mm | 0.31 kg |
| 330881-28-08-140-03-02 | Proximity Probe | 8 mm | 140 mm | 8 × 140 mm | 0.33 kg |
| 330881-28-08-145-00-02 | Proximity Probe | 8 mm | 145 mm | 8 × 145 mm | 0.34 kg |
Popular Models from Same Brand
| Model | Product Type | Series | Function | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 3500/42M | Vibration Monitor Module | 3500 Series | Machinery Vibration Monitoring | Rack Module | 0.90 kg |
| 3500/22M | Communication Module | 3500 Series | System Data Interface | Rack Module | 0.75 kg |
| 3500/15 | Power Supply Module | 3500 Series | System Power Supply | Rack Module | 1.10 kg |
| 330180-90-00 | Proximitor Sensor | 3300 XL Series | Signal Conditioning | 120×80×40 mm | 0.50 kg |
| 330130-040-00-00 | Extension Cable | 3300 XL Series | Signal Transmission | 4 m Cable | 0.45 kg |
Summary
The 330881-28-08-120-00-02 is a high-performance proximity probe designed for continuous shaft vibration and displacement monitoring in rotating machinery. As part of the 3300 XL 8 mm series, it provides accurate, stable, and long-term measurement performance in industrial environments.
Its eddy current non-contact technology ensures long service life without mechanical wear, making it suitable for predictive maintenance and machinery protection applications.
With its balanced 120 mm design, strong environmental resistance, and fast dynamic response, it is widely used in turbines, compressors, pumps, motors, and other critical rotating machinery where reliable condition monitoring is essential.