21000-28-10-20-102-01-02 Bently Nevada Proximity Probe Housing Assemblies
Description
The Bently Nevada 21000-28-10-20-102-01-02 Proximity Probe Housing Assemblyis used in industrial vibration or position‑monitoring setups (e.g. shafts, rotors, bearings), where a durable external mount is needed
for proximity probes, especially in hazardous or exposed environments.The 21000 series “Proximity Probe Housing Assemblies” from Bently Nevada are all-metal external housings designed to mount
proximity probes (e.g. 3300 XL / NSv probes) outside machinery, bearing housings, or other equipment.The housing provides a sealed, robust enclosure that protects the probe and its
extension cable while allowing external access. This means you can adjust probe gap or replace
he probe or cable without disassembling the machine.
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Frequently Asked Questions of 21000-28-10-20-102-01-02
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Q: What does the part number “21000-28-10-20-102-01-02” mean?
The “21000” is the base model (aluminum housing). The suffix codes define options such as: type of probe installed (probe with connector, or not), probe type (e.g. 3300 XL 8 mm or 11 mm), cable length, standoff adapter length, probe penetration (sleeve) length, type of conduit fittings/threading,
etc. Hence “28” might correspond to a certain probe‑with‑connector type, “10” to a 1.0 m cable, “20–102” to standoff / sleeve / penetration
dimensions per Bently’s ordering schema. The final “01-02” typically defines fitting options
and mounting thread type.
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Q: Can this housing be used in hazardous / explosive environments?
Yes — the 21000 (and stainless version 24701) housings are available in versions approved by the Canadian Standards Association (CSA)
for explosion‑proof applications in hazardous areas. When properly ordered (with correct suffix options), they meet CSA Class
I / II / III (various groups) and enclosure Type 4 requirements.
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Q: What temperature and environment can it handle?
With commonly used probes (3300 XL 8 mm or 11 mm), the housing can operate from –51 °C to +177 °C (–60 °F to +351 °F). It is
constructed of metal and uses O‑rings for sealing, plus threaded ports for conduit — giving good protection against
environmental factors (dust, moisture, mechanical damage) when properly installed.
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Inquiry now: miya@mvme.cn
Bently Nevada Hot Series:
3300 XL Proximity Probe
3300 Proximitor Sensor
3500 Power Supply
1900/65A
3500/42 Monitor Module
The 990 Vibration Transmitter
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