{"product_id":"21000-28-05-00-092-03-02-bently-nevada-21000-series-proximity-probe-housing","title":"21000-28-05-00-092-03-02 Bently Nevada 21000 Series Proximity Probe Housing","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 21000-28-05-00-092-03-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a specialized mechanical interface assembly designed for the precise mounting of eddy-current proximity transducers. This housing assembly provides the necessary rigid environment to protect transducers from harsh industrial conditions while maintaining the consistent gap alignment required for accurate rotor dynamics monitoring. By isolating the transducer from machine-induced structural vibration, this assembly ensures that the electrical signals provided to the monitoring rack are representative of actual shaft displacement.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e21000-28-05-00-092-03-02\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Series\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e21000 Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.82 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e38.0 * 10.0 * 10.0 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHousing Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e303\/304 Stainless Steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProbe Compatibility\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Thread\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3\/4-14 NPT\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConduit Interface\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1\/2-14 NPT (Suffix 03)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTotal Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e92 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-51 deg C to +177 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eModel Configuration Explanation\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e21000-28-05-00-092-03-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodel string defines the physical parameters of the housing:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e21000\u003c\/strong\u003e: Base series for Bently Nevada proximity probe housings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e28\u003c\/strong\u003e: Compatibility with 8 mm diameter proximity probes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e05\u003c\/strong\u003e: Mounting thread interface (3\/4-14 NPT for standard machine port integration).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e00\u003c\/strong\u003e: Configuration indicating no additional intermediate extensions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e092\u003c\/strong\u003e: Overall housing assembly length of 92 mm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e03\u003c\/strong\u003e: Conduit fitting specification for industrial wiring protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e02\u003c\/strong\u003e: Material and coating specification optimized for high-temperature and chemical resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cp\u003eThe 21000 series housing assembly is utilized in critical turbomachinery environments:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGas and Steam Turbines:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupporting probes monitoring radial shaft vibration in bearing housings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial Gearboxes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProtecting sensors in high-vibration, oil-mist environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCentrifugal Pumps:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProviding a secure, pressure-tight seal for monitoring shaft axial position.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTest Stand Instrumentation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnabling quick, reliable replacement of transducers during machine development cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis housing is mechanically engineered to accommodate all standard Bently Nevada 8 mm proximity probes. The internal thread design is matched to standard 8 mm probe thread pitches, allowing for precise adjustment of the probe gap. It is intended for use with Bently Nevada Proximitor sensors, where the rigid mounting provided by the 21000 series is necessary to prevent signal noise (cross-talk or resonance) from interfering with the transducer's calibrated linear range.\u003c\/p\u003e\n\u003ch2\u003eInstallation Guidelines\u003c\/h2\u003e\n\u003cp\u003eInstallation must be performed to ensure the transducer remains stable and shielded:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePreparation: Inspect machine ports for thread integrity; ensure no debris is present that could misalign the housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSealing: Apply an industry-standard thread sealant (compatible with process fluids and temperatures) to the 3\/4-14 NPT mounting threads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMounting: Thread the assembly into the port, ensuring the housing remains perpendicular to the shaft centerline to maintain uniform gap sensitivity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAlignment: Perform a mechanical gap check using a depth micrometer once the probe is inserted into the housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSecuring: Utilize the provided jam nuts to lock the housing position. Over-torquing should be avoided to prevent thread deformation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGrounding: Confirm that the stainless steel housing is in electrical contact with the machine frame to ensure proper system shielding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Advantages\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Temperature Performance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned to maintain structural rigidity and seal integrity up to 177 deg C.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe stainless steel alloy provides a durable barrier against oxidation and harsh lubrication chemistries.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNoise Mitigation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReduces measurement errors caused by mechanical resonance through robust, low-deflection material characteristics.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Maintenance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStandardized dimensions facilitate rapid replacement during scheduled machine outages.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOrdering Information\u003c\/h2\u003e\n\u003cp\u003eThe 21000-28-05-00-092-03-02 housing kit includes the following components:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eOne (1) 92 mm stainless steel housing assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated conduit fitting (Suffix 03).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstallation locking nuts and washers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProtective O-rings for port sealing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNote: Confirm the specific probe length matches the housing's internal reach requirement before final installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eCan this housing be used in high-pressure oil cavities?\u003c\/p\u003e\n\u003cp\u003eYes, provided that the 3\/4-14 NPT threads are installed with a suitable high-pressure rated sealant or thread compound.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the primary purpose of the 92 mm length?\u003c\/p\u003e\n\u003cp\u003eThe 92 mm length is a standard compact housing dimension designed for shallow-depth machine ports where minimal stick-out is required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this housing require specialized grounding?\u003c\/p\u003e\n\u003cp\u003eThe housing must be installed to create a metal-to-metal contact with the machine chassis, ensuring the transducer shield is properly grounded.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow do I ensure the probe tip does not vibrate within the housing?\u003c\/p\u003e\n\u003cp\u003eThe internal threads of the 21000 series are precision-machined to ensure a tight fit with the probe body; secure the probe using the provided lock nuts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the housing material resistant to synthetic lubricants?\u003c\/p\u003e\n\u003cp\u003eYes, the stainless steel used in this assembly is compatible with most standard turbine and synthetic lubrication oils.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does this assembly affect transducer calibration?\u003c\/p\u003e\n\u003cp\u003eThe housing is a passive component; however, rigid mounting prevents vibration-induced \"jitter,\" which is essential for accurate factory-calibrated signal response.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat should I do if the threads are damaged during installation?\u003c\/p\u003e\n\u003cp\u003eIf threads are cross-threaded or damaged, the housing assembly must be replaced to ensure the pressure seal and structural rigidity are maintained.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAre there different conduit fitting options?\u003c\/p\u003e\n\u003cp\u003eYes, the 21000 series offers various conduit fitting types; this specific model includes the 03 option, matching standard industrial cable conduit requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45518839742637,"sku":"21000-28-05-00-092-03-02","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-21000-28-05-00-092-03-02-proximity-probe-housing-assemblies-15drluajoet.jpg?v=1766980177","url":"https:\/\/www.maxwellplc.com\/products\/21000-28-05-00-092-03-02-bently-nevada-21000-series-proximity-probe-housing","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}