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- Bently Nevada
- 24701-28-05-00-035-03-02
- Proximity Probe Housing Assembly
- USA
- 78.2 mm
- 1.8 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
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- 24-Hour Service
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Bently Nevada 24701-28-05-00-035-03-02 is a proximity probe housing assembly used to secure and position a compatible proximity probe at a defined measurement location on rotating machinery. It forms the mechanical connection between the machine structure and the probe used for shaft monitoring.
A proximity probe installation depends on maintaining a fixed relationship between the sensing tip and the monitored shaft or target. The housing assembly helps maintain this relationship during machine operation, including conditions where vibration and rotational forces are present.
The assembly can be used in machinery monitoring arrangements for turbines, compressors, generators, motors, pumps, and other rotating equipment. It is particularly relevant to installations where shaft displacement, radial movement, axial position, or vibration-related behavior is monitored through a proximity sensing system.
During troubleshooting, the housing should not be overlooked. A mechanically loose or displaced housing can change the probe position and produce an abnormal measurement signal that may initially appear to be a sensor or monitoring-electronics fault.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 24701-28-05-00-035-03-02 |
| Product Family | 24701 Series |
| Product Type | Proximity Probe Housing Assembly |
| Primary Function | Mechanical mounting and positioning of a proximity probe |
| System Role | Proximity probe mechanical interface |
| Typical Application | Rotating machinery monitoring and protection |
| Housing Body Diameter | 78.2 mm |
| Weight | 1.8 kg |
Product Features
- 24701 Series housing assembly for proximity probe installations
- Provides mechanical support for a compatible proximity probe
- Maintains a defined probe position at the monitoring point
- Suitable for rotating machinery vibration and displacement monitoring
- Supports installations involving shaft-position measurement
- Forms part of the mechanical interface in machinery protection systems
- Applicable to turbine, compressor, generator, motor, and pump installations
- Useful for probe mounting maintenance and replacement work
Working Principle
The 24701-28-05-00-035-03-02 functions as the mechanical positioning element of a proximity measurement installation. It holds the compatible probe at the required location so that the sensing tip can maintain its intended relationship with the monitored shaft or target.
Rotating Shaft / Target → Housing Assembly → Proximity Probe → Signal Conditioning → Machinery Monitoring System → Alarm / Protection
During operation, movement of the shaft changes its distance from the proximity probe. The probe detects this change and sends the corresponding electrical signal through the associated signal-conditioning equipment to the machinery monitoring system.
The housing does not perform sensing or signal processing. Its contribution is mechanical stability. If the assembly moves because of looseness, incorrect mounting, deformation, or external mechanical forces, the probe position can change and introduce an apparent change in the measurement.
Role in a Machinery Protection Control Architecture
The 24701-28-05-00-035-03-02 occupies the mechanical mounting layer of the machinery protection chain. It establishes the physical installation point for the proximity probe before the signal enters the electronic monitoring system.
Machine Shaft → Probe Housing Assembly → Proximity Probe → Proximity Electronics → Monitoring System → Alarm / Trip
| System Element | Function |
|---|---|
| Rotating Machinery | Produces shaft movement or displacement to be monitored |
| Housing Assembly | Provides mechanical mounting and probe positioning |
| Proximity Probe | Detects changes in target-to-probe distance |
| Proximity Electronics | Conditions the probe output for the monitoring system |
| Monitoring System | Evaluates shaft displacement and vibration-related information |
| Protection System | Generates configured alarms or protective machine actions |
Industrial Applications
| Application | Typical Use |
|---|---|
| Steam Turbines | Fixed mounting for shaft proximity monitoring |
| Gas Turbines | Probe installation within machinery protection systems |
| Compressors | Mechanical support for shaft displacement measurement |
| Generators | Rotor movement and position monitoring |
| Large Motors | Radial or axial shaft movement monitoring |
| Pumps | Proximity probe installation for condition monitoring |
| Industrial Turbomachinery | Mechanical interface for continuous shaft monitoring |
| Power Generation Equipment | Probe mounting for rotating equipment protection |
Installation and Maintenance
- Confirm that the 24701-28-05-00-035-03-02 matches the intended proximity probe installation.
- Isolate the monitored machinery and follow applicable safety procedures before service.
- Inspect the housing for cracks, deformation, corrosion, or other physical damage.
- Check the mounting surface for contamination or damage that could affect mechanical stability.
- Confirm the housing orientation against the existing machinery installation arrangement.
- Install the compatible proximity probe carefully without applying excessive force.
- Verify that the probe is properly retained and mechanically secure.
- Check the probe position relative to the monitored shaft or target after installation.
- Inspect probe cables for abrasion, excessive tension, or unsuitable routing.
- Investigate housing looseness or movement if the proximity signal becomes unstable.
- Compare the monitoring signal with expected machine conditions during commissioning.
- After replacement, verify the complete probe, mounting, signal-conditioning, and monitoring chain before returning the machinery to normal operation.
Compatible System Components
| Component | Function |
|---|---|
| Bently Nevada Proximity Probe | Detects shaft displacement or vibration-related movement |
| Proximity Probe Extension Cable | Carries the probe signal to associated electronics |
| Proximity Signal Conditioner | Conditions the proximity probe signal |
| Machinery Monitoring Module | Receives and evaluates proximity measurement information |
| Vibration Monitoring System | Processes rotating machinery condition information |
| Alarm / Protection System | Generates configured alarm or shutdown responses |
| Rotating Shaft | Provides the monitored mechanical target |
| Probe Mounting Hardware | Secures the housing and associated probe installation |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Bently Nevada 24701 Series | Proximity Probe Housing Assembly | Probe mechanical installation |
| Bently Nevada 7200 Series | Proximity Probe | Shaft displacement and vibration monitoring |
| Bently Nevada 3300 XL Series | Proximity Probe System | Continuous machinery monitoring |
| Bently Nevada 3300 XL Proximity Transducer System | Proximity Measurement System | Shaft vibration and position measurement |
| Bently Nevada 3300 Monitoring System | Machinery Monitoring System | Vibration and protection monitoring |
| Bently Nevada 3500 Series | Machinery Monitoring System | Machinery protection and condition monitoring |
Key Advantages
- Provides a dedicated mechanical interface for proximity probe installation
- Maintains probe positioning at a defined machinery measurement point
- Supports stable mechanical conditions for shaft monitoring
- Suitable for continuous rotating machinery protection applications
- Compatible with a range of machinery monitoring arrangements when correctly matched
- Useful for maintenance and replacement of existing probe housing assemblies
Technical FAQs
Why is mechanical stability important for a proximity probe housing?
The housing determines where the probe is physically located relative to the monitored target. Even a small unintended movement can change the probe-to-target relationship and appear as a change in shaft position or vibration.
Does the 24701-28-05-00-035-03-02 process the proximity signal?
No. The housing is a mechanical component. The actual sensing function is performed by the compatible proximity probe, while signal conditioning and monitoring are handled by the associated electronics.
What should be checked after replacing the housing assembly?
Verify the mechanical mounting, probe retention, orientation, probe-to-target relationship, cable routing, and resulting monitoring signal. The complete measurement channel should be checked before the machine returns to normal operation.
Can an existing probe always be reused with a replacement housing?
Not necessarily. The probe and housing must be mechanically compatible with the specific installation. Probe configuration, mounting arrangement, orientation, and target location should be confirmed before reusing the existing probe.