Product Overview
When a turbine or compressor goes down, every hour of downtime hurts. The Bently Nevada 146055-50-02-05 is a 3300 ceramic capped reverse mount probe built to keep your machinery protection system online. It ships new and original in factory packing, so you can get the right spare without the wait.
This probe is part of the trusted 3300 series. It uses a 3/8-24 UNF thread and a 5.0 meter (16.4 feet) integral cable with a miniature ClickLoc coaxial connector and standard cable. The ceramic cap protects the probe tip in harsh oil, gas, and industrial environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 3300 Ceramic Capped Reverse Mount Probe |
| Part Number | 146055-50-02-05 |
| Probe Case Thread | 3/8-24 UNF |
| Total Length | 5.0 m (16.4 ft) |
| Connector Type | Miniature ClickLoc coaxial, standard cable |
| Agency Approval | Multiple Approvals |
| Probe Tip Material | Alumina ceramic (Al2O3) |
| Probe Case Material | AISI 304 stainless steel |
| Operating Temperature | -51°C to +177°C (-60°F to +351°F) |
| Pressure Rating | 34 Bar (500 psi) nitrogen |
| Nominal DC Resistance | 8.73 ± 0.70 ohms |
Why the 146055-50-02-05 Fits Your System
The 5.0 meter length is designed for use with the 5 m Proximitor Sensor only. That match keeps your measurement accurate and your installation simple. The probe’s linear range runs from 0.25 to 1.78 mm (10 to 70 mils), giving you reliable position data across the working range.
The alumina ceramic tip resists wear and harsh chemicals. The AISI 304 stainless steel case stands up to the vibration and temperature swings common in oil and gas service. With a pressure rating of 34 Bar (500 psi) nitrogen, this probe handles demanding seal applications.
Applications in Oil, Gas, and Industry
Turbine and Compressor Monitoring
Reverse mount probes fit where space is tight. You can install the 146055-50-02-05 on steam turbines, gas turbines, and centrifugal compressors to measure shaft vibration and axial position. The ceramic cap helps the probe survive the high temperatures and contaminants found in these machines.
Pump and Motor Protection
In refinery and petrochemical plants, this probe watches for shaft movement that signals bearing wear. Early detection lets your team plan maintenance instead of reacting to a failure. That is practical ROI: fewer unplanned outages and longer equipment life.
Integration with 3300 Systems
The probe works as part of a 3300 5 mm system. It pairs with the 5 m Proximitor Sensor, extension cable, and monitor. If you are upgrading an older system or replacing a damaged probe, this model keeps your architecture consistent.
Installation and Setup
Mount the probe using the 3/8-24 UNF thread. The maximum thread engagement is 0.563 in. Make sure the target is AISI 4140 steel for the specified performance. The system accuracy and interchangeability specifications apply only when all components are 3300 XL parts and the target is AISI 4140 steel.
Route the integral cable away from high-voltage sources and sharp edges. The miniature ClickLoc connector makes a secure, quick connection. For best results, follow the manufacturer’s installation instructions for your specific machine.
Maintenance and Reliability
Inspect the probe tip and cable periodically for damage. Check the connector for tightness and corrosion. Because the ceramic cap protects the tip, you can expect long service life in abrasive environments. Keep spare probes on hand to avoid long lead times when a failure occurs. Fast dispatch, worldwide means you get spares when you need them.
Selection Guide
Before you order, confirm your system uses a 5 m Proximitor Sensor. Verify the thread size and cable length match your mounting point. If you are unsure, our team offers hands-on technical selection help. Contact Oil AutoTech today for pricing and availability.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
