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- Bently Nevada
- 24701-28-05-00-070-04-02
- 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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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 24701-28-05-00-070-04-02 is a proximity probe housing assembly used to mount and position a compatible proximity probe at a defined measurement point on rotating machinery. It forms the mechanical interface between the machine structure and the sensing element used for shaft monitoring.
A proximity measurement depends on maintaining a consistent relationship between the probe and the monitored shaft or target surface. The housing assembly holds the probe in its intended position so that shaft movement can be detected without the mounting arrangement itself becoming a source of unwanted movement.
This type of housing is suited to machinery monitoring installations involving turbines, compressors, generators, motors, pumps, and other rotating equipment. It can support measurement arrangements for radial vibration, shaft displacement, axial movement, or other position-related monitoring functions when matched with the appropriate probe and monitoring system.
During maintenance, the housing assembly should be considered part of the measurement point rather than simply a mechanical accessory. Changes in housing position, mounting condition, or mechanical integrity can alter the probe geometry and affect the resulting monitoring signal.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 24701-28-05-00-070-04-02 |
| 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 proximity probe housing assembly
- Provides mechanical support for a compatible proximity probe
- Establishes a fixed mounting point for shaft monitoring
- Supports proximity probe installations on rotating machinery
- Suitable for vibration, displacement, and shaft-position monitoring arrangements
- Forms part of the mechanical measurement interface
- Applicable to turbine, compressor, generator, motor, and pump monitoring systems
- Useful for maintenance and replacement of existing probe housing assemblies
Working Principle
The 24701-28-05-00-070-04-02 does not measure vibration or process the probe signal itself. Its function is to hold the compatible proximity probe at the required location relative to the monitored shaft or target.
Machine Shaft / Target → Housing Assembly → Proximity Probe → Signal Conditioning → Machinery Monitoring System → Alarm / Protection
As the shaft rotates, changes in its position relative to the probe are detected by the proximity sensing element. The associated electronics condition the probe output and send measurement information to the machinery monitoring system for evaluation.
The housing maintains the physical geometry required by this measurement chain. If it shifts because of loose mounting, mechanical damage, deformation, or installation error, the probe position can change independently of the actual shaft movement. Such a change may appear as an abnormal measurement and should be considered during troubleshooting.
Role in a Machinery Protection Control Architecture
The 24701-28-05-00-070-04-02 occupies the mechanical installation layer of a proximity-based machinery protection system. It establishes the mounting relationship required before the probe signal enters the electronic monitoring chain.
Rotating Machinery → 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 support and probe positioning |
| Proximity Probe | Detects changes in target-to-probe distance |
| Proximity Electronics | Conditions the sensing signal |
| Monitoring System | Evaluates shaft position, displacement, or vibration 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 position and movement monitoring |
| Large Motors | Radial or axial shaft monitoring |
| Pumps | Probe mounting for rotating equipment monitoring |
| Industrial Turbomachinery | Mechanical interface for continuous shaft monitoring |
| Power Generation Equipment | Mounting support for rotating machinery protection probes |
Installation and Maintenance
- Verify that the 24701-28-05-00-070-04-02 matches the intended probe and machinery mounting arrangement.
- Isolate the monitored machinery and follow applicable safety procedures before performing installation work.
- Inspect the housing for cracks, deformation, corrosion, or other physical damage.
- Check the mounting surface for contamination, wear, or damage that could affect mechanical stability.
- Confirm the housing orientation against the original installation arrangement.
- Install the compatible proximity probe carefully and avoid excessive force on the sensing element.
- Verify that the probe is properly secured within the housing.
- Check the probe-to-target relationship after completing the mechanical installation.
- Inspect probe cables for abrasion, excessive tension, and unsuitable routing.
- Check the housing for looseness or movement if the monitoring signal becomes unstable.
- Compare the resulting proximity signal with expected machine behavior during commissioning.
- After replacement, verify the housing, probe, signal-conditioning electronics, and monitoring system as one complete measurement chain.
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 electrical output from the proximity probe |
| 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
- Supports consistent probe positioning at the machinery measurement point
- Helps maintain the intended probe-to-target relationship during operation
- Suitable for continuous rotating machinery monitoring systems
- Applicable to critical turbine, compressor, generator, motor, and pump installations
- Useful for maintenance and replacement of compatible 24701 Series housing assemblies
Technical FAQs
What makes the housing assembly part of the measurement chain?
Although the housing does not process an electrical signal, it determines the physical position of the proximity probe. Its mechanical condition therefore affects the geometry on which the proximity measurement depends.
What could cause the housing to introduce a false change in the monitoring signal?
Looseness, mechanical displacement, deformation, or incorrect mounting can move the probe relative to the target. The monitoring system may then detect a signal change caused by probe movement rather than actual shaft movement.
Should the housing be replaced whenever a proximity probe is replaced?
Not necessarily. The housing can normally remain in service when its mechanical condition, mounting integrity, and compatibility with the replacement probe are satisfactory. It should nevertheless be inspected whenever the probe is serviced.
How should a replacement housing be commissioned?
Confirm the mechanical mounting arrangement first, then install and secure the compatible probe. Verify the probe-to-target relationship, inspect the cable connection, and check the resulting signal through the complete machinery monitoring system before returning the machine to service.