



Product Overview
The Bently Nevada 21000-00-00-00-060-04-02 Proximity Probe Housing Assembly is an all-metal external mounting enclosure designed for Bently Nevada proximity probe installations. Manufactured from a lightweight aluminum housing with a stainless-steel probe sleeve, it provides reliable environmental protection while allowing convenient probe adjustment and maintenance without dismantling the monitored equipment.
This configuration is supplied without a probe, without a probe cable, without a standoff adapter, features a 6.0 in. (152 mm) probe penetration, includes one 3/4-14 NPT plug (Option 04), and uses a 3/4-14 NPT mounting thread (Option 02). The assembly complies with API 670 installation practices for externally mounted proximity probe housings.
Technical Specifications
| Specification | Description |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 21000-00-00-00-060-04-02 |
| Product Type | Proximity Probe Housing Assembly |
| Housing Series | 21000 |
| Housing Material | Aluminum |
| Probe Sleeve Material | 304 Stainless Steel |
| Probe Included | No |
| Probe Cable Included | No |
| Standoff Adapter | None |
| Probe Penetration | 6.0 in. (152 mm) |
| Fittings Option | 04 – One 3/4-14 NPT Plug |
| Mounting Thread | 02 – 3/4-14 NPT |
| Threaded Conduit Ports | Yes |
| O-Ring Sealing | Yes |
| Dome Cover | Threaded Aluminum Cover |
| Compatible Probes | 3300 XL 8 mm, 3300 XL 11 mm, 3300 XL NSv (ordered separately) |
| Typical Operating Temperature* | -51°C to +177°C (-60°F to +351°F) (depends on installed probe) |
| Typical Housing Weight | Approx. 1.1 kg (without fittings) |
| Shipping Weight | Approx. 1.5 kg |
| Country of Origin | USA |
Typical Applications
The 21000-00-00-00-060-04-02 is designed for external mounting of proximity probes in machinery vibration monitoring installations.
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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Fans and blowers
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Electric generators
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Rotating machinery maintenance projects
Its external mounting design allows technicians to inspect, adjust, or replace probes without opening the machine casing, reducing maintenance time.
Technical FAQs
1. What is the Bently Nevada 21000-00-00-00-060-04-02?
It is an external Proximity Probe Housing Assembly designed for mounting compatible Bently Nevada proximity probes.
2. Is a proximity probe included?
No. This configuration is supplied without a probe (Option A:00).
3. Is a probe cable included?
No. Option B:00 specifies that no probe cable is supplied.
4. What does the "060" option indicate?
It specifies a 6.0-inch (152 mm) probe penetration.
5. What does Option "04" represent?
Option 04 includes one 3/4-14 NPT plug.
6. What mounting thread is provided?
Option 02 specifies a 3/4-14 NPT mounting thread.
7. Which probe families are compatible?
The housing supports compatible 3300 XL 8 mm, 3300 XL 11 mm, and 3300 XL NSv reverse-mount proximity probes.
8. What material is used for the housing?
The housing body is manufactured from aluminum, while the probe sleeve is 304 stainless steel.
9. What is the approximate product weight?
The housing weighs approximately 1.1 kg without fittings.
10. Does this assembly simplify maintenance?
Yes. The external housing design allows probe inspection and replacement without dismantling the monitored machine.