
Product Overview
The Bently Nevada 21000-28-10-00-045 is a Proximity Probe Housing Assembly compatible with the 3300 XL 8 mm proximity probe system. Part of the 21000 series, this housing provides mechanical support and environmental protection for proximity probes used in shaft displacement and vibration monitoring of rotating machinery.
It is commonly installed on turbines, compressors, pumps, and generators, where accurate probe alignment is crucial for reliable condition monitoring.
Technical Specifications
| Parameter |
Details |
| Manufacturer |
Bently Nevada |
| Model |
21000-28-10-00-045 |
| Product Type |
Proximity Probe Housing Assembly |
| Series |
21000 / 3300 XL compatible system |
| Probe Compatibility |
3300 XL 8 mm proximity probe |
| Housing Body Diameter |
83.3 mm |
| Weight |
1.1 kg |
| Mounting Type |
Industrial threaded housing assembly |
| Application |
Vibration and shaft displacement monitoring |
| Operating Environment |
Industrial rotating machinery (turbines, compressors, pumps) |
Function and Working Principle
The housing assembly ensures reliable probe operation by:
- Providing precise mechanical alignment with the rotating shaft.
- Maintaining a stable probe-to-shaft gap, essential for accurate eddy-current measurements.
- Protecting the probe and cabling from dust, oil, moisture, and mechanical impact.
- Reducing measurement errors caused by vibration or misalignment.
- Supporting modular installation and maintenance without disassembling the machinery.
It is a mechanical support component, not a sensor itself, but is essential for accurate monitoring.
Key Features
- Compatible with Bently Nevada 3300 XL proximity probe systems
- Rugged industrial housing for harsh operating environments
- Ensures stable and repeatable probe alignment
- Threaded housing allows secure mechanical mounting
- Corrosion-resistant and durable construction
- Lightweight (1.1 kg) for easy integration
Industrial Applications
- Gas and steam turbine vibration monitoring
- Compressor shaft displacement measurement
- Pump vibration and condition monitoring
- Industrial gearbox monitoring
- Power generation rotating machinery protection
- Machinery health monitoring in oil & gas plants
Installation Overview
- Mounted on machinery casing or bracket using threaded fittings
- Houses proximity probe aligned toward the rotating shaft
- Connected via sealed cable fittings to prevent environmental exposure
- Requires proper alignment for accurate measurement
- Supports easy maintenance and probe replacement
Compatible Systems
- Bently Nevada 3300 XL proximity probe systems
- Machinery protection and vibration monitoring systems
- Turbine supervisory instrumentation systems
- Industrial condition monitoring platforms
Alternative Models
| Model |
Description |
| 21000-28-10-00-041 |
Base version of this housing assembly |
| 21000-28-10-00-041-04-02 |
Variant with minor configuration differences |
| 21000-28-05-35-028-00-02 |
Extended penetration housing variant |
| 21000-28-05-30-024-03-02 |
Standard housing for 3300 XL probes |
| Other 21000 series variants |
Configurations for specific machinery setups |
Key Advantages
- Ensures accurate and stable probe positioning
- Protects sensitive 3300 XL proximity probes
- Designed for harsh industrial environments
- Modular installation allows maintenance without full disassembly
- Improves accuracy and reliability of machinery condition monitoring
- Standardized, lightweight design simplifies installation
Conclusion
The Bently Nevada 21000-28-10-00-045 Proximity Probe Housing Assembly is a critical mechanical component for vibration and shaft displacement monitoring. It ensures 3300 XL proximity probes operate with precision, stability, and protection, supporting reliable and continuous monitoring of industrial rotating machinery.