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- Bently Nevada
- 330881-28-08-070-03-02
- PROXPAC XL Proximity Transducer Assembly
- USA
- 8 mm × 70 mm
- 0.27kg
- Xiamen, China
- New & In Stock
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330881-28-08-070-03-02 Technical Overview, Specifications, Applications, Advantages and Model Reference Guide
Product Overview
The 330881-28-08-070-03-02 is a precision industrial proximity probe designed for continuous monitoring of shaft vibration and displacement in rotating machinery. It is used in condition monitoring and machinery protection systems where stable, accurate, and real-time measurement of rotor behavior is required.
This probe is based on eddy current non-contact measurement technology. It detects the distance between the probe tip and a conductive metal surface without physical contact, allowing it to measure shaft position, radial vibration, axial displacement, and eccentricity with high accuracy.
Because there is no mechanical contact, the probe avoids wear and maintains stable performance over long operational periods. It is suitable for continuous operation in harsh industrial environments where reliability is critical.
The 070 mm probe length configuration provides a balanced installation option, making it suitable for medium-depth mounting requirements in rotating machinery systems.
Brand
Bently Nevada
This product belongs to a globally recognized industrial monitoring technology brand specializing in machinery protection, vibration analysis, rotor dynamics, and predictive maintenance systems.
Its solutions are widely used in critical industries such as power generation, oil and gas, petrochemical processing, mining, steel production, and marine engineering.
The brand is known for producing high-reliability measurement systems designed for continuous operation under demanding environmental and mechanical conditions.
Product Series
3300 XL 8 mm Proximity Transducer System
The 330881-28-08-070-03-02 is part of the 3300 XL 8 mm proximity transducer system, a widely adopted industrial measurement platform for shaft displacement monitoring.
This system includes proximity probes, extension cables, and signal conditioning modules designed to function together as a complete measurement chain.
It is known for excellent linearity, high measurement accuracy, strong electromagnetic interference resistance, and long-term stability.
The series is commonly used in machinery protection systems for monitoring vibration, shaft movement, and mechanical condition of rotating equipment in real time.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 330881-28-08-070-03-02 |
| Product Type | Proximity Probe |
| Series | 3300 XL 8 mm |
| Measurement Principle | Eddy Current Non-Contact Measurement |
| Probe Diameter | 8 mm |
| Probe Length | 70 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 × 70 mm |
| Weight (kg) | Approximately 0.27 kg |
Product Features
The 330881-28-08-070-03-02 provides reliable non-contact measurement of shaft displacement in rotating machinery.
Its eddy current sensing principle ensures accurate detection of small shaft movement variations, enabling early detection of mechanical faults such as imbalance, misalignment, looseness, or bearing wear.
The 70 mm probe length provides a balanced installation depth suitable for a wide range of machinery configurations.
The stainless-steel housing ensures durability and resistance to harsh industrial conditions such as vibration, oil exposure, dust, and temperature changes.
The probe delivers stable long-term performance with minimal maintenance requirements.
Its fast dynamic response allows real-time monitoring of 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 metal target approaches, eddy currents are induced in the surface material.
These eddy currents modify the electromagnetic impedance of the probe system. The change is converted into an electrical signal proportional to the distance between probe and shaft surface.
This non-contact method eliminates mechanical wear and ensures long-term stable operation.
Typical Applications
The 330881-28-08-070-03-02 is widely used in rotating machinery monitoring systems across multiple industries.
Typical applications include:
- Gas turbines
- Steam turbines
- Hydro turbines
- Centrifugal compressors
- Industrial pumps
- Electric motors
- Generators
- Gearboxes
- Fans and blowers
- Petrochemical compressors
- Refinery equipment
- Offshore platforms
- Power plants
- Steel production systems
- Cement plants
- Mining machinery
- Paper mills
- Chemical processing systems
- Marine propulsion systems
- Medium-size rotating machinery installations
It is particularly suitable for applications requiring balanced probe length and installation flexibility.
Product Advantages
The 330881-28-08-070-03-02 offers stable, high-precision measurement performance in demanding industrial environments.
Its non-contact design eliminates mechanical wear, improving durability and reducing maintenance requirements.
The probe provides high repeatability and accuracy, ensuring reliable condition monitoring data.
Its rugged stainless-steel structure ensures resistance to vibration, oil, dust, and harsh environmental conditions.
Strong electromagnetic interference resistance ensures stable operation in electrically noisy environments.
Fast response capability allows early detection of mechanical abnormalities.
Long service life reduces downtime and replacement costs.
Recommended Models (Same Series / Related)
| Model | Product Type | Probe Diameter | Length | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 330881-28-08-038-08-02 | Proximity Probe | 8 mm | 38 mm | 8 × 38 mm | 0.22 kg |
| 330881-28-08-050-08-02 | Proximity Probe | 8 mm | 50 mm | 8 × 50 mm | 0.24 kg |
| 330881-28-08-060-00-02 | Proximity Probe | 8 mm | 60 mm | 8 × 60 mm | 0.26 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 |
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 330881-28-08-070-03-02 is a reliable 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 durability without mechanical wear, making it ideal for predictive maintenance and machinery protection systems.
With its balanced 70 mm design, strong environmental resistance, and fast response characteristics, it is widely used in turbines, compressors, pumps, motors, and other critical rotating machinery applications where stable monitoring is essential.