



Product Overview
The Bently Nevada 21000-16-10-00-100-04-02 Proximity Probe Housing Assembly is a factory-configured external mounting assembly designed for use with the 3300 XL 8 mm reverse-mount proximity probe. It features a rugged aluminum housing, a precision 304 stainless steel probe sleeve, and an O-ring sealed threaded cover to provide reliable environmental protection and convenient access for probe inspection and replacement.
This configuration includes a 3300 XL 8 mm reverse-mount proximity probe (Option 16), a 1.0 m (39 in.) probe cable (Option 10), no standoff adapter (Option 00), a 10.0 in. (254 mm) probe penetration (Option 100), one 3/4-14 NPT plug (Option 04), and a 3/4-14 NPT mounting thread (Option 02). It is designed for permanent installation on rotating equipment requiring dependable shaft vibration and position measurement.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 21000-16-10-00-100-04-02 |
| Product Type | Proximity Probe Housing Assembly |
| Housing Series | 21000 |
| Included Probe | 3300 XL 8 mm Reverse-Mount Proximity Probe |
| Probe Cable Length | 1.0 m (39 in.) |
| Standoff Adapter | None |
| Probe Penetration | 10.0 in. (254 mm) |
| Fittings | One 3/4-14 NPT Plug |
| Mounting Thread | 3/4-14 NPT |
| Housing Material | Aluminum |
| Probe Sleeve Material | 304 Stainless Steel |
| Housing Cover | Threaded Aluminum Dome |
| Sealing Method | O-Ring Sealed |
| Compatible Extension Cable | 3300 XL Extension Cable |
| Compatible Sensor | 3300 XL 8 mm Proximitor Sensor |
| Operating Temperature* | -51°C to +177°C (-60°F to +351°F) |
| Housing Diameter | 83.3 mm (3.28 in.) |
| Probe Penetration Length | 254 mm (10.0 in.) |
| Approximate Product Weight | 1.1 kg |
| Approximate Shipping Weight | 2.0 kg |
| Country of Origin | USA |
Typical Applications
The 21000-16-10-00-100-04-02 is intended for external mounting of proximity probes on rotating equipment where reliable installation and straightforward maintenance are required.
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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Electric motors
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Gearboxes
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Generators
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Fans and blowers
Its 10.0-inch probe penetration provides additional installation flexibility for medium- to long-reach bearing housing applications while maintaining convenient external access for service.
Technical FAQs
1. Which probe is supplied with this assembly?
The assembly includes a 3300 XL 8 mm reverse-mount proximity probe.
2. What probe cable length is included?
A 1.0 m (39 in.) probe cable is factory installed.
3. Does this model include a standoff adapter?
No. Option 00 indicates that no standoff adapter is supplied.
4. What is the probe penetration length?
The probe penetration is 10.0 inches (254 mm), represented by option 100 in the model number.
5. Which conduit fitting is included?
Option 04 provides one 3/4-14 NPT plug.
6. What mounting thread is used?
The housing is supplied with a 3/4-14 NPT mounting thread.
7. What materials are used in the housing?
The housing body is aluminum, while the probe sleeve is manufactured from 304 stainless steel.
8. What is the approximate product weight?
The typical housing assembly weighs approximately 1.1 kg, excluding optional fittings.
9. Which accessories are compatible?
The assembly is compatible with 3300 XL Extension Cables and 3300 XL 8 mm Proximitor Sensors.
10. Is this assembly designed for permanent installation?
Yes. It is intended for continuous service on rotating machinery and allows convenient external access for maintenance and inspection.