Bently Nevada 146055-20-02-05 3300 Ceramic Capped Reverse Mount Probe

What Is the Bently Nevada 146055-20-02-05?

When your rotating machinery experiences unexpected vibration, the Bently Nevada 146055-20-02-05 provides precise, reliable measurement. This 3300 Ceramic Capped Reverse Mount Probe is engineered for demanding industrial environments where accurate proximity sensing is critical. Part of the trusted 3300 series, this probe delivers consistent performance for vibration and position monitoring on turbines, compressors, and pumps.

Technical Specifications Breakdown

The 146055-20-02-05 features a total length of 2.0 meters (6.6 feet), as indicated by the -20 option in the ordering code. It uses 3/8-24 UNF threads for secure mounting, with a maximum thread engagement of 0.563 inches. The probe case is made from AISI 304 stainless steel, ensuring durability in corrosive environments. The probe tip is alumina ceramic (Al2O3), providing excellent wear resistance. The connector is a miniature ClickLoc coaxial type with standard cable, and the unit carries multiple agency approvals (option -05). The nominal DC resistance from center conductor to outer conductor is 7.88 ± 0.50 ohms for the 2.0-meter probe length.

Industry Applications

This probe excels in vibration monitoring for critical rotating equipment. In steam turbines, the 146055-20-02-05 measures shaft displacement and eccentricity, helping operators avoid catastrophic failures. For centrifugal compressors, it provides real-time data on rotor position and vibration amplitude. The reverse mount design allows installation in tight spaces where standard probes cannot fit, making it ideal for retrofit projects and new installations alike.

Installation & Setup Guidance

Proper installation ensures accurate readings. Mount the probe with 3/8-24 UNF threads into a suitable bore, ensuring the tip is clean and free of debris. The linear range begins at approximately 0.25 mm (10 mils) from the target and extends to 1.78 mm (70 mils). Use the supplied miniature ClickLoc coaxial connector for a secure cable connection. For optimal performance, pair this probe with a compatible Bently Nevada Proximitor sensor and extension cable. Always follow the manufacturer's guidelines for gap setting and target material (AISI 4140 steel recommended).

Maintenance & Reliability

Routine inspection of the probe tip and cable is recommended. Check for physical damage, contamination, or wear on the ceramic tip. The probe operates reliably in temperatures from -51°C to +177°C and is rated to seal 34 Bar (500 psi) nitrogen. For high-pressure applications, contact Bently Nevada for modifications. Regular calibration checks ensure measurement accuracy over time.

Selection Guide & Purchasing Advice

When selecting the 146055-20-02-05, verify the total length (2.0 meters) and connector type match your system requirements. This probe is available in lengths of 0.5, 1, 2, 5, or 9 meters. BluePLC Industrial offers this model as new and original in factory packing with a 12-month warranty. For complete technical specifications, please contact BluePLC Industrial.