Product Overview
Downtime on a turbine or compressor train rarely waits for a purchase order. The Bently Nevada 146055-05-02-00 is a 3300 Ceramic Capped Reverse Mount Probe built for maintenance teams who need a reliable radial vibration or position measurement point back in service quickly. This unit ships new and original in factory packing, with a 0.5 meter (1.6 feet) total length and a 3/8-24 UNF case thread for reverse mount installations.
Key Parameters That Matter on the Floor
The ceramic cap is the first thing a maintenance engineer notices. The probe tip uses alumina ceramic (Al2O3), which resists wear and impact in tight machine housings. The case is AISI 304 stainless steel, so it holds up in humid, oily or mildly corrosive plant environments.
| Specification | Value |
|---|---|
| Part Number | 146055-05-02-00 |
| Model | 3300 Ceramic Capped Reverse Mount Probe |
| Total Length | 0.5 m (1.6 ft) |
| Probe Case Thread | 3/8-24 UNF |
| Connector Type | Miniature ClickLoc coaxial, standard cable |
| Agency Approval | Not required |
| Probe Tip Material | Alumina ceramic (Al2O3) |
| Probe Case Material | AISI 304 stainless steel |
| Cable Type | 75 Ω coaxial, FEP insulated |
| Operating Temperature | -51°C to +177°C (-60°F to +351°F) |
| Pressure Rating | Sealed to 34 Bar (500 psi) nitrogen |
| Nominal DC Resistance | 7.45 ± 0.50 ohms |
Reliability Where It Counts
The 146055-05-02-00 handles a wide operating and storage range of -51°C to +177°C (-60°F to +351°F), covering most oil, gas and heavy industrial applications without extra protection. The probe seals to 34 Bar (500 psi) nitrogen, giving maintenance planners confidence in high-pressure service. For higher-pressure duties, Bently Nevada offers modifications through their custom design department.
From a service perspective, the reverse mount design and 3/8-24 UNF thread simplify installation in bearing housings where access is limited. The 0.5 meter length suits short-run routing to a junction box or extension cable, reducing cable management headaches during a turnaround.
Integration and System Fit
This probe is part of the 3300 5 mm system family, which includes the Proximitor Sensor, extension cable and probe. When you replace a probe, keep the system matched: performance characteristics apply to systems built solely from 3300 XL components. The miniature ClickLoc coaxial connector with standard cable is the interface point, so confirm your extension cable and Proximitor Sensor match before commissioning. If you are wiring into a plant network or monitoring rack, check with Oil AutoTech about the correct cables and connection modules for your setup.
Maintenance Notes
Inspect the ceramic tip and cable jacket at each scheduled outage. Look for chipped ceramic, abrasion on the FEP-insulated cable, and secure connector seating. Because the probe is a passive measurement element, most faults show up as signal drift or loss at the monitor, not as visible damage. Keep spare probes on the shelf: a ready-to-ship spare shortens any unplanned vibration trip.
Selection Checklist
Before ordering, verify the total length you need (0.5, 1, 2, 5 or 9 meters are available in this series), the connector type, and whether your installation requires agency approval. This unit is supplied without agency approval. Confirm the case thread matches your mounting adapter. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Contact Oil AutoTech today for pricing and availability.
