Built for Secure Probe Installation and Long-Term Equipment Reliability
The Bently Nevada 21000-28-05-00-040-03-02 Proximity Probe Housing Assembly is a rugged external mounting solution designed to protect proximity probes used in critical machinery monitoring systems. Engineered to withstand harsh industrial environments, this housing assembly provides reliable mechanical protection while allowing convenient access for probe adjustment, calibration, and replacement without dismantling the monitored equipment.
Configured with a 3300 XL 8 mm reverse-mount proximity probe, a 0.5 m (20 in) integral cable, and a 4.0-inch probe penetration, this model is ideal for compact machinery installations where dependable vibration and shaft position measurements are essential. Its aluminum housing, stainless-steel probe sleeve, and industrial conduit fittings ensure long-lasting performance in continuous operation.
Technical Specifications
| Parameter | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 21000-28-05-00-040-03-02 |
| Product Type | Proximity Probe Housing Assembly |
| Compatible Probe | 3300 XL 8 mm Reverse-Mount Proximity Probe |
| Probe Cable Length | 0.5 m (20 in) |
| Probe Penetration | 4.0 in |
| Housing Material | Aluminum Body with 304 Stainless Steel Probe Sleeve |
| Fittings | One 3/4-14 NPT Plug, Reducer and Cable Seal Grip |
| Mounting Thread | 3/4-14 NPT |
| Application | Machinery Protection and Condition Monitoring |
| Dimensions | Approx. 245 × 72 × 72 mm |
| Weight | Approx. 1.60 kg |
Ideal Applications
The 21000-28-05-00-040-03-02 is widely installed on critical rotating assets requiring reliable proximity probe protection.
- Steam Turbines
- Gas Turbines
- Centrifugal Compressors
- Industrial Pumps
- Electric Motors
- Generators
- Fans and Blowers
- Refinery Equipment
- Petrochemical Plants
- Power Generation Facilities
Technical FAQs
1. What is the purpose of the 21000-28-05-00-040-03-02?
It securely mounts and protects a proximity probe while providing easy external access for maintenance and probe adjustment.
2. Which probe is supplied with this housing configuration?
It is configured for a 3300 XL 8 mm reverse-mount proximity probe with a 0.5 m (20 in) integral cable.
3. What does the 4.0-inch penetration specify?
The penetration value defines the probe sleeve insertion depth, allowing proper positioning inside bearing housings and machinery casings.
4. What materials are used in the housing?
The assembly features an aluminum housing body combined with a 304 stainless-steel probe sleeve for durability and corrosion resistance.
5. What mounting thread does this assembly use?
The housing is supplied with a 3/4-14 NPT mounting thread for secure installation on compatible equipment.
6. Is this assembly suitable for harsh industrial environments?
Yes. It is designed to protect the probe from vibration, moisture, dust, and other challenging operating conditions commonly found in heavy industries.
7. Can technicians replace the probe without dismantling the machine?
Yes. One of the key benefits of the housing assembly is that it allows probe replacement or gap adjustment externally, reducing maintenance time.
8. Which industries commonly install this housing assembly?
It is extensively used in oil & gas, petrochemical, power generation, mining, pulp & paper, marine, and general industrial machinery monitoring systems.
9. What are the dimensions and weight?
The housing assembly measures approximately 245 × 72 × 72 mm and weighs approximately 1.60 kg, making it suitable for compact machinery installations.
10. Why choose the 21000-28-05-00-040-03-02?
Its rugged construction, compact penetration depth, proven compatibility with Bently Nevada monitoring systems, and simplified maintenance make it an excellent solution for protecting critical rotating equipment.
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