Bently Nevada 21022 Modules - 21022-28-05-017-03

Technical Dossier

Product Details And Specifications

Bently Nevada 21022 Series Technical Notes

The Evolution of 21022 Architecture

The 21022 housing assembly line was developed as part of Bently Nevada's systematic standardization of proximity probe field hardware during the late 1980s and 1990s. Early variants were designed for direct integration with the 3300 series monitors, which used analog signal conditioning and required precise probe gap calibration within a defined linear range. As the industry transitioned to the 3500 series digital rack platform in the mid-1990s, the 21022 mechanical form factor was retained, ensuring backward compatibility with existing conduit and mounting infrastructure — a deliberate design decision that reduced retrofit costs for end users.

The part numbering convention encodes critical configuration data: probe tip diameter (5mm or 8mm), cable length, connector type, and housing material (standard or high-temperature alloy). Later revisions introduced improved thread-locking mechanisms and corrosion-resistant coatings for offshore and high-humidity environments. As of 2026, the 21022 series is in the mature/end-of-life phase of its product lifecycle. Bently Nevada (now a Baker Hughes company) has transitioned new installations toward the 3500/42M and 3500/45 position monitor modules paired with current-generation probe assemblies. However, the installed base of 21022-compatible systems remains extensive, and long-term maintenance support for these assemblies is a primary operational requirement for asset-intensive industries.

21022 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced configurations within the Bently Nevada 21022 Dual Axial Probe Housing Assembly series. Each entry reflects a distinct mechanical or electrical configuration:

21022-28-05-017-03: Dual axial probe housing, 8mm tip, 5m cable, standard connector, carbon steel body
21022-28-05-010-03: Dual axial housing, 8mm tip, 1m cable, standard connector, field-trim configuration
21022-28-05-025-03: Dual axial housing, 8mm tip, 2.5m cable, standard connector, mid-range cable run
21022-28-05-050-03: Dual axial housing, 8mm tip, 5m cable, armored cable variant, high-vibration zones
21022-28-08-017-03: Dual axial housing, 8mm tip, 8m cable, standard connector, extended conduit runs
21022-28-10-017-03: Dual axial housing, 8mm tip, 10m cable, standard connector, remote monitor cabinets
21022-28-05-017-02: Dual axial housing, 8mm tip, 5m cable, alternate connector type, legacy rack interface
21022-28-05-017-01: Dual axial housing, 8mm tip, 5m cable, MIL-spec connector, defense/nuclear applications
21022-05-05-017-03: Dual axial housing, 5mm tip, 5m cable, standard connector, compact machinery
21022-05-05-010-03: Dual axial housing, 5mm tip, 1m cable, standard connector, short-run installations
21022-05-05-025-03: Dual axial housing, 5mm tip, 2.5m cable, standard connector, mid-range configuration
21022-05-08-017-03: Dual axial housing, 5mm tip, 8m cable, standard connector, extended field wiring
21022-05-10-017-03: Dual axial housing, 5mm tip, 10m cable, standard connector, long-distance signal runs
21022-28-05-017-HT: Dual axial housing, 8mm tip, 5m cable, high-temperature alloy body, furnace/kiln proximity
21022-28-05-017-SS: Dual axial housing, 8mm tip, 5m cable, stainless steel body, corrosive/offshore environments
21022-28-05-017-EX: Dual axial housing, 8mm tip, 5m cable, ATEX/IECEx certified, Zone 1 hazardous areas
21022-28-05-017-03-R: Factory-reconditioned dual axial housing, 8mm tip, 5m cable, tested to OEM specification