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- Bently Nevada
- 330881-28-07-038-08-02
- PROXPAC XL Proximity Transducer Assembly
- USA
- 8 mm
- 0.22kg
- Xiamen, China
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330881-28-07-038-08-02 Technical Overview, Specifications, Applications, Advantages and Related Model Reference
Product Overview
The 330881-28-07-038-08-02 is a precision non-contact proximity probe used for continuous monitoring of shaft vibration and displacement in rotating machinery. It is designed for industrial environments where high accuracy, long-term stability, and reliable condition monitoring are required.
This probe operates using eddy current sensing technology, enabling it to measure the distance between the probe tip and a conductive metal target without physical contact. This allows accurate detection of shaft position, radial vibration, axial movement, and eccentricity.
Because the measurement is non-contact, the probe eliminates mechanical wear and maintains consistent performance over long operating periods. It is widely used in machinery protection systems to support predictive maintenance strategies and prevent unexpected equipment failures.
The 038 mm probe length version is particularly suitable for compact installation environments where shorter probe depth is required, making it ideal for tight mechanical configurations.
Brand
Bently Nevada
The brand is globally recognized for industrial machinery protection, vibration monitoring, and predictive maintenance systems.
Its technologies are widely applied in critical industries such as power generation, oil and gas, petrochemical processing, mining, steel production, and marine engineering.
The brand focuses on delivering high-reliability measurement solutions designed for continuous operation in harsh industrial environments.
Product Series
3300 XL 8 mm Proximity Transducer Series
The 330881-28-07-038-08-02 belongs to the 3300 XL 8 mm proximity transducer system, a widely used industrial measurement platform for shaft displacement monitoring.
The system consists of proximity probes, extension cables, and signal conditioning modules designed to work together as a complete measurement chain.
It is known for excellent linearity, strong EMI resistance, high stability, and long-term reliability under continuous industrial operation.
The series is commonly used in machinery protection systems to monitor vibration, shaft movement, and mechanical condition of rotating equipment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 330881-28-07-038-08-02 |
| Product Type | Proximity Probe |
| Series | 3300 XL 8 mm |
| Measurement Principle | Eddy Current Non-Contact Measurement |
| Probe Diameter | 8 mm |
| Probe Length | 38 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 Operation |
| Dimensions | 8 mm × 38 mm |
| Weight (kg) | Approximately 0.22 kg |
Product Features
The 330881-28-07-038-08-02 provides high-precision measurement of shaft movement in rotating machinery using a non-contact sensing method.
Its eddy current technology ensures accurate detection of small displacement changes, making it suitable for early fault detection in industrial equipment.
The short probe length design allows installation in compact or restricted mechanical spaces where longer probes cannot be used.
The stainless-steel housing enhances durability and protects the probe from harsh environmental conditions such as oil exposure, vibration, and temperature variations.
Its fast dynamic response allows real-time monitoring of shaft behavior, which is essential for machinery protection systems.
The probe provides stable long-term performance with minimal maintenance requirements.
Working Principle
The probe works based on eddy current induction.
A high-frequency electromagnetic field is generated at the probe tip. When a conductive metal target approaches, eddy currents are induced in the material.
These eddy currents modify the impedance of the probe system. The change is converted into an electrical signal proportional to the distance between probe and shaft surface.
Because there is no physical contact, the system avoids wear and ensures stable long-term operation.
Typical Applications
The 330881-28-07-038-08-02 is used in rotating machinery monitoring systems across multiple industries.
Typical applications include:
- Gas turbines
- Steam turbines
- Hydro turbines
- Compressors
- Industrial pumps
- Electric motors
- Generators
- Gearboxes
- Fans and blowers
- Petrochemical equipment
- Refinery machinery
- Offshore platforms
- Power plants
- Steel production systems
- Cement plants
- Mining machinery
- Paper mills
- Chemical processing systems
- Marine propulsion systems
- Small rotating machinery assemblies
It is especially suitable for compact installations requiring short probe length configurations.
Product Advantages
The 330881-28-07-038-08-02 offers reliable and stable measurement performance in demanding industrial environments.
Its non-contact design eliminates mechanical wear, significantly improving long-term durability.
The probe provides high measurement accuracy and repeatability, ensuring reliable monitoring data.
The compact design allows installation in restricted spaces without performance loss.
Strong resistance to vibration, oil, dust, and electromagnetic interference ensures stable operation in harsh environments.
Fast response capability enables early detection of mechanical faults.
Long service life reduces maintenance and replacement frequency.
Recommended Models (Same Series / Related)
| Model | Product Type | Probe Diameter | Length | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 330881-28-07-038-08-02 | Proximity Probe | 8 mm | 38 mm | 8 × 38 mm | 0.22 kg |
| 330881-28-07-050-08-02 | Proximity Probe | 8 mm | 50 mm | 8 × 50 mm | 0.25 kg |
| 330881-28-07-105-00-02 | Proximity Probe | 8 mm | 105 mm | 8 × 105 mm | 0.30 kg |
| 330881-28-07-120-03-02 | Proximity Probe | 8 mm | 120 mm | 8 × 120 mm | 0.31 kg |
| 330881-28-07-145-00-02 | 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 | Data Communication 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 330881-28-07-038-08-02 is a compact high-precision proximity probe designed for shaft displacement and vibration monitoring in rotating machinery. As part of the 3300 XL 8 mm series, it delivers stable, accurate, and reliable measurement performance in industrial environments.
Its eddy current non-contact technology ensures long-term stability without mechanical wear, making it suitable for continuous monitoring and predictive maintenance applications.
With its short probe design, strong environmental resistance, and fast response capability, it is widely used in turbines, compressors, pumps, motors, and other rotating machinery where installation space is limited but measurement reliability is critical.