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Home>TSI>Bently Nevada 21000-28-05-00-061-03-02 21000-28-05-00-070-01-02 Proximity Probe Housing Assemblies

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Bently Nevada 21000-28-05-00-061-03-02 21000-28-05-00-070-01-02 Proximity Probe Housing Assemblies

Bently Nevada 21000-28-05-00-061-03-02 21000-28-05-00-070-01-02 Proximity Probe Housing Assemblies

Item NO.: 21000-28-05-00-061-03-02 21000-28-05-00-070-01-02
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Detail

  • Product NameBently Nevada 21000-28-05-00-061-03-02 21000-28-05-00-070-01-02 Proximity Probe Housing Assemblies
  • Item NO.21000-28-05-00-061-03-02 21000-28-05-00-070-01-02
  • Weight1.1000 kg = 2.4251 lb = 38.8014 oz
  • CategoryTSI
  • BrandBently Nevada
  • Creation Time2025-10-13
  • Bently Nevada Proximity Probe Housing Assemblies
21000-28-05-00-070-01-02
Bently Nevada · 21000 Series · Probe Housing Assembly

Bently Nevada 21000-28-05-00-070-01-02 Proximity Probe Housing Assembly

The Bently Nevada 21000-28-05-00-070-01-02 is a 21000 Series aluminum proximity probe housing assembly configured with a 3300 XL 8 mm probe, 0.5 m probe cable, no standoff adapter, 7.0 in probe penetration, one explosion-proof fitting plus one plug, and a 3/4-14 NPT mounting thread.

Mechanical Probe Protection

Product Profile

The Bently Nevada 21000-28-05-00-070-01-02 belongs to the 21000 family of externally mounted proximity probe housing assemblies. The 21000 housing uses an aluminum body with a 304 stainless-steel sleeve and is designed to support and protect the probe assembly at the machine interface.

The ordering code defines the probe family, cable length, standoff arrangement, probe penetration, conduit fittings and mounting thread. This allows the housing to be configured around the mechanical requirements of a specific rotating-machine installation.

Baker Hughes Official Data

Technical Data

Manufacturer Bently Nevada, a Baker Hughes company
Part Number 21000-28-05-00-070-01-02
Product Family 21000 Proximity Probe Housing Assembly
Housing Body Material Aluminum
Sleeve Material 304 stainless steel
Probe Option Code 28 3300 XL 8 mm probe, selectable hazardous-area approvals
Probe Cable Length Code 05 0.5 m (20 in)
Standoff Adapter Code 00 No standoff adapter
Probe Penetration Code 070 7.0 in (177.8 mm)
Fittings Code 01 One 3/4-14 NPT explosion-proof fitting and one 3/4-14 NPT plug
Mounting Thread Code 02 3/4-14 NPT
3300 XL 8 mm Probe Temperature -51°C to +177°C (-60°F to +351°F), operating and storage
Probe Penetration Adjustment Range ±0.5 in (13 mm)
Mechanical Function

System Role

Probe Protection
Provides a rigid housing around the externally mounted proximity probe and its connection point.
Mechanical Positioning
Supports controlled placement of the reverse-mount probe relative to the machine target through the housing sleeve and penetration adjustment.
Conduit Interface
Provides threaded conduit/fitting connections for routing and protecting the probe cable.
Maintenance Access
Allows the probe assembly to be accessed and serviced without treating the housing body as part of the measurement electronics.
Installation Matching

Compatibility

The 21000-28-05-00-070-01-02 configuration is built around a 3300 XL 8 mm probe. Before replacement, verify the machine mounting thread, required penetration, target position, conduit arrangement and probe-system electrical length. Baker Hughes also states that sleeve lengths greater than 304 mm (12 in) require additional sleeve support to reduce vibration. Hazardous-area probe approval does not automatically make a standard 21000 housing CSA explosion-proof; that housing certification applies to CA21000 / CA24701 configurations under the manufacturer's specified conditions.
Typical Rotating-Machine Use

Applications

Turbomachinery Monitoring
External probe mounting for shaft vibration and position measurements on turbines, compressors and similar rotating equipment.
Bearing Housing Installations
Used where the proximity probe must be supported and protected outside the machine casing or bearing housing.
Harsh Industrial Environments
The metal housing and conduit fittings protect the probe connection from mechanical and environmental exposure.
API 670 Installations
Baker Hughes states that the 21000 and 24701 housings are fully compliant with API 670 requirements for externally mounted proximity probe housings.
Buyer & Installation Questions

Frequently Asked Questions

1. What probe is supplied in 21000-28-05-00-070-01-02?
Option 28 specifies a 3300 XL 8 mm probe with selectable hazardous-area approvals.
2. What does the 05 code mean in 21000-28-05-00-070-01-02?
It specifies a 0.5 m (20 in) probe cable length.
3. Does 21000-28-05-00-070-01-02 include a standoff adapter?
No. Option 00 specifies no standoff adapter.
4. What fitting and mounting thread are included with 21000-28-05-00-070-01-02?
Option 01 specifies one 3/4-14 NPT explosion-proof fitting and one 3/4-14 NPT plug; option 02 specifies a 3/4-14 NPT mounting thread.
5. Is the standard 21000 housing itself CSA explosion-proof?
Not automatically. Baker Hughes states that only CA21000 / CA24701 housings are CSA-certified as explosion-proof when ordered with the specified fitting options. Hazardous-area probe approvals and housing explosion-proof certification are separate considerations.
Probe Housing Inquiry
Need 21000-28-05-00-070-01-02?
Send us the complete ordering code, quantity and installation requirement for availability, quotation and shipping support.
Industrial Monitoring Parts Support

About IndustryParts

IndustryParts supports maintenance teams, rotating-equipment engineers and system integrators sourcing machinery-monitoring and automation components. Our coverage includes proximity systems, vibration-monitoring hardware, PLC/DCS modules, drives, industrial I/O and communication products.

For mechanically configured probe assemblies, the complete ordering code matters. We assist with model checking, sourcing, quotation preparation, order coordination and international shipping.

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