Robust Vibration Monitoring with the Bently Nevada 24701-28-05-00-070-04-01
Industrial rotating machinery demands precise, reliable vibration monitoring to prevent catastrophic failures. The Bently Nevada 24701-28-05-00-070-04-01 proximity probe housing assembly delivers exactly that, combining rugged stainless steel construction with proven 3300 XL 8mm probe technology. This assembly is engineered for harsh environments where accuracy and durability are non-negotiable.
Technical Specifications Breakdown
Key parameters for the 24701-28-05-00-070-04-01 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Model | 24701 - Proximity Probe Housing Assemblies |
| Probe Option | 28 - 3300 XL 8mm, with approval option |
| Probe Cable Length | 05 = 20 in (0.5 m) |
| Probe Penetration | 070 - 0.7 in |
| Fittings Option | 04 = One 3/4-14 NPT plug only |
| Mounting Thread Option | 01 = As cast without threads |
| Body Material | 303 stainless steel |
| Sleeve Material | 304 stainless steel |
| Weight (typical, without fittings) | 1.8 kg (4.1 lb) |
| Maximum (C) + (D) Dimension | 13.5 in (34.3 mm) |
Industry Applications: Solving Real-World Vibration Challenges
In petrochemical plants, the 24701-28-05-00-070-04-01 is commonly used on centrifugal compressors and large pumps. The 0.7 in probe penetration and 0.5 m cable length allow precise positioning within tight bearing housings, while the 303/304 stainless steel construction resists corrosive atmospheres. For power generation turbines, this assembly provides stable, accurate shaft displacement readings even under high thermal stress. The optional 3/4-14 NPT plug simplifies conduit connections in retrofit installations.
Installation and Setup Guidance
Proper installation begins with verifying the mounting thread option: this unit is configured as cast without threads (option 01), so the housing body must be secured using alternative methods such as compression fittings or custom brackets. Ensure the probe sleeve length matches the required gap to the target surface. The maximum (C)+(D) dimension of 13.5 in (34.3 mm) must be respected to avoid mechanical interference. Always use the included O-rings and thread seal to maintain environmental integrity.
Maintenance and Reliability
Periodic inspection of the dome cover and conduit ports is recommended to prevent moisture ingress. The stainless steel body and sleeve offer corrosion resistance, but in extreme environments, check for pitting or galling on threaded connections. The reverse mount proximity probe should be tested annually for signal integrity. No disassembly of the probe itself is required during routine maintenance.
Compatibility and Integration
This housing assembly is designed for Bently Nevada 3300 XL 8mm proximity probes with approval option. The 0.5 m probe cable length is suitable for close-coupled installations; for longer distances, consult AutoDCSTech for compatible extension cables.
Selection Guide and Purchasing Advice
When selecting the 24701-28-05-00-070-04-01, verify that the probe penetration (0.7 in) and cable length (0.5 m) match your machine's geometry. The absence of mounting threads (option 01) means you must plan for alternative fastening. AutoDCSTech stocks this assembly as new and original in factory packing, backed by a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Troubleshooting and Common Issues
If the housing fails to seal, check the O-rings and thread seal for damage. Inconsistent probe readings may indicate incorrect probe penetration depth or interference from adjacent metal. The visible probe part number and serial number are not visible on this assembly, so record the probe details separately before installation. For persistent signal noise, verify that the conduit fittings (one 3/4-14 NPT plug) are properly tightened.


Availability & Condition at AutoDCSTech
| Part Number | 24701-28-05-00-070-04-01 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
