



Product Overview
The Bently Nevada 21000-16-05-00-115-03-02 Proximity Probe Housing Assembly is a factory-configured external mounting assembly designed for use with the 3300 XL 8 mm reverse-mount proximity probe. Built with a durable aluminum housing and a precision-machined 304 stainless steel probe sleeve, it provides dependable mechanical protection while allowing quick access for probe inspection, adjustment, and replacement.
This configuration includes a 3300 XL 8 mm reverse-mount probe, a 0.5 m (20 in.) probe cable, no standoff adapter, an 11.5 in. (292 mm) probe penetration, a complete conduit fitting package, and a 3/4-14 NPT mounting thread. It is well suited for continuous machinery monitoring applications requiring reliable external probe installation.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 21000-16-05-00-115-03-02 |
| Product Type | Proximity Probe Housing Assembly |
| Housing Series | 21000 |
| Included Probe | 3300 XL 8 mm Reverse-Mount Proximity Probe |
| Probe Cable Length | 0.5 m (20 in.) |
| Standoff Adapter | None |
| Probe Penetration | 11.5 in. (292 mm) |
| Housing Material | Aluminum |
| Probe Sleeve Material | 304 Stainless Steel |
| Fittings | One 3/4-14 NPT Plug, One 3/4-14 to 1/2-14 NPT Reducer, One Cable Seal Grip with Grommets |
| Mounting Thread | 3/4-14 NPT |
| Housing Cover | Threaded Aluminum Dome |
| Sealing Method | O-Ring Sealed |
| Compatible Extension Cable | 3300 XL Extension Cable |
| Compatible Proximitor | 3300 XL Proximitor Sensor |
| Operating Temperature* | -51°C to +177°C (-60°F to +351°F) |
| Dimensions | Probe Penetration: 292 mm (11.5 in.) |
| Approximate Weight | 1.1 kg |
| Shipping Weight | Approx. 2.5 kg |
| Country of Origin | USA |
Typical Applications
The 21000-16-05-00-115-03-02 is designed for external installation of proximity probes on rotating equipment requiring dependable monitoring and convenient maintenance access.
Typical applications include:
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Steam turbines
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Gas turbines
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Centrifugal compressors
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Pumps
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Gearboxes
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Electric generators
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Fans and blowers
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Rotating machinery maintenance and retrofit projects
Its 11.5-inch probe penetration provides additional installation flexibility for medium-depth bearing housings while maintaining easy service access.
Technical FAQs
1. What probe is included with this assembly?
A genuine 3300 XL 8 mm reverse-mount proximity probe is included.
2. What is the supplied probe cable length?
The assembly includes a 0.5 m (20 in.) probe cable.
3. Does this model include a standoff adapter?
No. This configuration is supplied without a standoff adapter.
4. What is the probe penetration length?
The probe penetration is 11.5 inches (292 mm).
5. What fittings are included?
The assembly includes one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and one cable seal grip with grommets.
6. What mounting thread is used?
The housing uses a 3/4-14 NPT mounting thread.
7. What materials are used in the housing?
The housing features an aluminum body with a 304 stainless steel probe sleeve.
8. What is the approximate product weight?
The typical product weight is 1.1 kg, with an approximate shipping weight of 2.5 kg.
9. Which extension cables are compatible?
The assembly is compatible with 3300 XL Extension Cables.
10. Is this assembly suitable for continuous monitoring installations?
Yes. It is designed for permanent installation on rotating machinery and provides convenient external access for routine maintenance.