Fast Quote About Us FAQ Contact Us
  • Please try to be as accurate as possible with your search.
  • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
  • We can't find any results for “”.
    SEE MORE
      SEE PRODUCTS IN SEARCH PAGE ()
      Fast Quote About Us FAQ Contact Us
      Get Repair Quote
      Name
      Company *
      Phone *
      Email *
      Address
      City
      State / Province / Region
      Zipcode
      Country
      Quantity *
      Part Number *
      Manufacturer
      Preferred Condition
      Additional Information
      Cancel
      Bently Nevada 21000-28-05-40-028-04-02
      Bently Nevada 21000-28-05-40-028-04-02
      · Product image is representative; revision or series may vary. Contact us to request a specific version.
      Get a Quote

      21000-28-05-40-028-04-02

      Proximity Probe Housing Assemblies
      In Stock
      Ships by Friday, August 7
      Fast Shipping Available

      Product Information:

      The 21000-28-05-40-028-04-02 is a Proximity Probe Housing Assembly manufactured by Bently Nevada for its 21000 series metal eddy current probes. This assembly is a complete mechanical integration containing a protective housing and an internal probe, conforming to API 670 standards for external mounting.

      It is specifically designed for large bearing housings in large steam turbines, centrifugal compressors, and centrifugal pumps, allowing maintenance personnel to adjust the probe gap or replace the internal probe directly from the outside of the machine without disassembling the housing.

      In actual industrial operation, this external housing assembly provides both mechanical and electrical protection. Its aluminum housing and 304 stainless steel sleeve provide perfect IP66/IP68 airtight protection, preventing leakage of high-pressure lubricating oil from the plant and blocking external splashes of water, dust, and highly corrosive gases from damaging the sensitive probe connectors.

      Warranty Policy
      We provide 1-year warranty for all remaining parts.
      The warranty period is 1-year warranty from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      Return Notice
      The warranty period is 1-year warranty from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
      Shipping Methods
      Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
      Parts Availability
      Moore Automated offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
      Expand All
      Collapse all

      Technical specifications for 21000-28-05-40-028-04-02

      • Manufacturer:
        Bently Nevada
      • Product Category:
        TSI System
      • Estimated shipping dimensions:
        67 x 1.5 x 10 cm
      • Weight:
        0.25 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Product Type:
        Proximity Probe Housing Assemblies
      • Category Series:
        21000, 24701, and 164818 Proximity Probe Housing Assemblies
      • Probe with Connector:
        3300 XL 8mm probe, selectable hazardous area approvals
      • Probe Cable Length:
        0.5 m (20 in)
      • Standoff Adapter (Option C Dimension):
        4.0 in (101.6 mm)
      • Probe Penetration (Option D Dimension):
        2.8 in (71.12 mm)
      • Fittings:
        One 3/4-14 NPT plug only
      • Mounting Thread:
        3/4-14 NPT
      • Operating and storage:
        -51°C to +177°C (-60°F to +351°F)
      • Material:
        Aluminum body with 304 stainless steel sleeve
      • Stock:
        100
      Ask for Quote

      Alternative Names

      21000 28 05 40 028 04 02 210002805400280402 2I000-28-05-40-028-04-02 21OOO-28-O5-4O-O28-O4-O2 21000-28-05-40-028-04-01 21000-28-05-40-028-04-04 21000-28-05-40-028-04-CN 21000-28-05-40-028-04-BR 21000-28-05-40-028-04-RU 21OOO-28-O5-4O-O28-O4-O1 21OOO-28-O5-4O-O28-O4-O4

      Information

      Overview Manuals General Info Ordering Information Industry Use Cases

      Features:

      • Proximity Probe Housing Assemblies
      • Aluminum body with 304 stainless steel sleeve
      • 21000, 24701, and 164818 Proximity Probe Housing Assemblies
      The 21000 and 24701 Proximity Probe Housing Assemblies are available with Canadian Standards Association (CSA) approvals. They are rated explosion proof for hazardous areas. Bently Nevada offers a probe support and oil seal (part number 37948-01) for long sleeves that must go through an inner bearing housing.

      To externally mount proximity probes, use one of these allmetal Proximity Probe Housing Assemblies: 21000 aluminum probe housing assembly; 24701 stainless steel probe housing assembly The 21000 and 24701 Proximity Probe Housing Assemblies consist of the following parts:A dome cover that screws into the body of the housing; Threaded ports for conduit connections; A probe sleeve of optional length; 0-rings; A reverse mount proximity probe; A thread seal; Optional conduit fittings; An optional standoff adapter.

      The 21000-28-05-40-028-04-02 Bently Nevada Proximity Probe Housing Assemblies may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
      Bently Nevada 21000-28-05-40-028-04-02 Proximity Probe Housing Assemblies Manuals(Datasheets), Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
      • Model: 21000-28-05-40-028-04-02
      • Warranty: One-year warranty
      • Condition: Brand new, original, in stock
      • Product Family: 21000, 24701, and 164818 Proximity Probe Housing Assemblies
      Proximity Probe Housing Assemblies
      21000-Axx-Bxx-Cxx-Dxxx-Exx-Fxx

      A: Probe with Connector
      00: Probe not required
      14: 420 nuclear
      16: 3300 XL 8mm probe
      26: 3300 XL NSv probe
      27: 3300 XL NSv probe, selectable hazardous area approvals
      28: 3300 XL 8mm probe, selectable hazardous area approvals
      29: 3300 XL 11mm probe
      30: 3300 XL 11mm probe, selectable hazardous area approvals
      31: 3300 XL NSv probe with connector protector
      32: 3300 XL NSv probe with connector protector, selectable hazardous area approvals
      33: 3300 XL 8mm probe with connector protector
      34: 3300 XL 8mm probe with connector protector, selectable hazardous area approvals
      35: 3300 XL 11mm probe with connector protector
      36: 3300 XL 11mm probe with connector protector, selectable hazardous area approvals
      37: 3300 XL 8mm probe, ETR, selectable hazardous area approvals (available for 21000 only)
       
      B: Probe Cable Length
      00: Probe cable not required
      05: 0.5 m (20 in)
      10: 1.0 m (39 in)
      12: 12.0 in
      18: 18.0 in
      24: 24.0 in
      30: 30.0 in
      36: 36.0 in
       
      C: Standoff Adapter (Option C Dimension)
      15: Minimum length 1.5 in (38 mm)
      75: Maximum length 7.5 in (191 mm)
      Examples
      1.5 in (38 mm) = 15
      No standoff adapter = 00
       
      D: Probe Penetration (Option D Dimension)
      10: Minimum length 1.0 in (25.4 mm)
      Examples
      3.7 in (94 mm) = 037
      22.4 in (569 mm) = 224
       
      E: Fittings
      00: Without fittings
      01: One 3/4-14 NPT explosion-proof fitting; One 3/4-14 NPT plug
      02: Two 3/4-14 NPT explosion-proof fittings
      03:One 3/4-14 NPT plug; One 3/4-14 to 1/2-14 NPT reducer; One cable seal grip with grommets for; the following cable sizes:
      • 1/8 to 3/16 inches
      • 1/4 to 5/16 inches
      • 5/16 to 3/8 inches
      04: One 3/4-14 NPT plug only
       
      F: Mounting Thread
      01: As cast without threads
      02: 3/4-14 NPT
      04: 1/2-14 BSP
      1.Oil and gas refineries: Installed on large centrifugal compressors and steam turbines to monitor shaft vibration and axial thrust.
      2.Power plants: Installed on critical steam turbine generator sets to track rotor dynamics and prevent catastrophic blade-stator contact.
      3.Petrochemical and chemical processing: High-speed pumps and gearboxes used to handle hazardous, volatile, or corrosive fluids.
      4.Heavy manufacturing: Large fan, blower, and cooling tower drives used in harsh environments.

      Manuals

      Technical notes

      The Bentley Nevada 21000-28-05-40-028-04-02 is an explosion-proof aluminum eddy current probe external mounting protective housing assembly that integrates a 3300 XL 8mm reverse-mount probe, enabling non-removable external gap adjustment. This assembly conforms to API 670 standards and features a 2.8-inch immersion depth, a 4.0-inch extension joint, and a 3/4-14 NPT interface, specifically designed for long-term safety monitoring of large rotating machinery such as compressors and steam turbines.

      • Product Lifecycle Stage

        Obsolete/Discontinued by OEM

        Moore Automated provides high-quality Bently Nevada replacement modules and spare parts for industrial automation systems. Our reliable solutions help reduce customer downtime, extend equipment life, and ensure reliable, continuous plant operation.

      Ask our team:

      Related Products

      Browsing history

      FAQ

      View All Faqs
      • What are the main operating functions of the 21000-28-05-40-028-04-02 in an industrial machinery monitoring system?
        The 21000-28-05-40-028-04-02 is an eddy current proximity probe assembly designed for high-precision, non-contact measurement of shaft vibration, radial displacement, axial position, and mechanical runout in critical rotating machinery. It is part of a calibrated proximity sensor system used for continuous condition monitoring and machinery protection.
      • How does the 21000-28-05-40-028-04-02 utilize eddy current sensing technology to achieve superior measurement accuracy?
        The 21000-28-05-40-028-04-02 employs high-frequency eddy current technology to generate an electromagnetic field at the probe tip, which interacts with the conductive target surface. Changes in the probe-target gap produce a proportional electrical signal, providing excellent linearity, repeatability, and dynamic response for precision shaft displacement measurement.
      • What is the probe thread specification for 21000-28-05-40-028-04-02?
        The 21000-28-05-40-028-04-02 features a 28mm threaded probe body, with a configuration code of 28. This thread construction ensures robust mechanical mounting, precise probe positioning, and long-term dimensional stability in high-vibration industrial applications.
      • What is the probe cable length for 21000-28-05-40-028-04-02?
        The 21000-28-05-40-028-04-02 includes an integrated coaxial cable approximately 5 meters (16.4 feet) long, corresponding to the 05 ordering option. This cable must be used with compatible extension cables and signal conditioners to achieve the factory-calibrated electrical system length.
      • How does the 21000-28-05-40-028-04-02 maintain excellent signal integrity under harsh electromagnetic environments?
        The 21000-28-05-40-028-04-02 utilizes precision-shielded coaxial cable, optimized conductor impedance, and strong electromagnetic compatibility (EMC) characteristics. These characteristics minimize electromagnetic interference (EMI), radio frequency interference (RFI), and signal attenuation, thus ensuring highly stable displacement measurements.
      Quantity
      Upload
      (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)
      Get a Quote
      For more information on how your data is processed and stored by Moore Automated please read our privacy policy.
      Top Collections Top Products
      Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, drives and servo motors, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
      Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.
      img0
      img0