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- Bently Nevada
- 24701-28-05-05-064-03-02
- 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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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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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Bently Nevada 24701-28-05-05-064-03-02 is a proximity probe housing assembly used to mount and position a compatible proximity probe at a fixed measurement point on rotating machinery. It forms the mechanical interface that keeps the sensing element correctly located relative to the monitored shaft or target surface.
In a machinery monitoring installation, the probe must maintain its position while the shaft rotates and the surrounding equipment experiences normal mechanical vibration. The housing provides the mechanical support needed to keep the probe installation consistent throughout operation.
The assembly is suited to proximity-based monitoring arrangements used on turbines, compressors, generators, motors, pumps, and other rotating equipment. Depending on the associated probe and monitoring system, the measurement point may be used to observe shaft vibration, radial displacement, axial movement, or shaft position.
For maintenance work, the housing should be inspected whenever a probe is replaced, a measurement point has been disturbed, or the monitoring signal changes unexpectedly. Mechanical movement at the housing can affect the measurement even when the probe and monitoring electronics are operating correctly.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 24701-28-05-05-064-03-02 |
| 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 proximity probe housing assembly
- Provides mechanical support for a compatible proximity probe
- Maintains probe positioning at a defined machinery measurement point
- Suitable for rotating machinery monitoring installations
- Supports shaft vibration and displacement measurement arrangements
- Forms part of the mechanical interface of a machinery protection system
- Applicable to turbines, compressors, generators, motors, and pumps
- Useful for probe installation, inspection, and replacement activities
Working Principle
The 24701-28-05-05-064-03-02 functions as a mechanical support component within a proximity measurement channel. The compatible probe is installed through the housing and positioned toward the monitored shaft or target.
Rotating Shaft / Target → Housing Assembly → Proximity Probe → Signal Conditioning → Monitoring System → Alarm / Protection
When the shaft moves relative to the stationary probe, the proximity sensor detects the resulting change in target distance. The associated electronics condition the sensor output before the monitoring system evaluates the measurement for machinery condition, alarm, or protection functions.
The housing itself does not sense vibration or process electrical signals. Its role is to preserve the physical position of the probe. Mechanical looseness, deformation, or movement of the housing can therefore alter the probe-to-target relationship and introduce unwanted changes into the monitoring signal.
Role in a Machinery Protection Control Architecture
The 24701-28-05-05-064-03-02 occupies the mechanical mounting stage of a proximity-based machinery protection architecture. It establishes the physical relationship between the machine structure and the proximity probe before the measurement enters the electronic monitoring chain.
Machine Structure → 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 probe measurement signal |
| Monitoring System | Evaluates shaft position, vibration, or displacement data |
| Protection System | Generates configured alarms or protective machine actions |
Industrial Applications
| Application | Typical Use |
|---|---|
| Steam Turbines | Fixed probe mounting for shaft monitoring |
| Gas Turbines | Mechanical support for machinery protection probes |
| Compressors | Shaft displacement and vibration measurement |
| Generators | Rotor movement and position monitoring |
| Large Motors | Radial or axial shaft monitoring |
| Pumps | Proximity probe mounting for condition monitoring |
| Industrial Turbomachinery | Mechanical interface for continuous shaft monitoring |
| Power Generation Equipment | Probe mounting within rotating machinery protection |
Installation and Maintenance
- Verify that the 24701-28-05-05-064-03-02 matches the intended probe and machinery mounting arrangement.
- Isolate the monitored machinery and follow applicable safety procedures before performing mechanical work.
- Inspect the housing for cracks, deformation, corrosion, or other physical damage.
- Check the mounting surface for contamination, wear, or damage that could affect installation stability.
- Confirm the housing orientation against the existing machinery measurement-point arrangement.
- Install the compatible proximity probe carefully and avoid excessive mechanical force.
- Verify that the probe is securely retained within the housing.
- Check the probe-to-target relationship after completing the housing installation.
- Inspect probe cables for abrasion, excessive tension, or unsuitable routing.
- Investigate housing looseness or displacement if the proximity signal becomes unstable.
- Compare the resulting monitoring signal with expected machine behavior during commissioning.
- After replacement, verify the housing, probe, signal-conditioning electronics, and monitoring system as a 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 preserve the intended probe-to-target relationship during operation
- Suitable for continuous rotating machinery monitoring installations
- Applicable to critical turbine, compressor, generator, motor, and pump systems
- Useful for maintenance and replacement of compatible 24701 Series housing assemblies
Technical FAQs
What is the role of the 24701-28-05-05-064-03-02 in a proximity monitoring system?
It provides the mechanical mounting and positioning interface for a compatible proximity probe. The housing does not perform the sensing or signal-processing functions handled by the probe and associated electronics.
Why can a mechanically loose housing cause an abnormal proximity signal?
If the housing moves, the probe moves with it relative to the monitored shaft or target. The monitoring system may then register a change caused by probe position rather than an actual change in shaft movement.
When should the housing assembly be inspected?
Inspection is appropriate during probe replacement, scheduled machinery maintenance, or troubleshooting of unexpected proximity readings. Particular attention should be given to mounting integrity if work has recently been performed around the measurement point.
What should be verified before installing a replacement housing?
Confirm the housing configuration against the existing machinery installation and compatible probe. The mounting arrangement, probe position, orientation, mechanical security, and resulting monitoring signal should all be verified before returning the machine to normal operation.