The Bently Nevada 330706-005-046-10-02-00 is an 11 mm reverse mount proximity probe from the 3300 XL series. It forms part of a non-contacting transducer system used to measure relative shaft displacement and vibration in rotating machinery. This probe is specifically engineered for applications requiring extended linear range and high accuracy, such as thrust position monitoring and differential expansion measurement.
Unlike standard forward-mount probes, the reverse mount design allows installation from the rear of the mounting boss. This configuration simplifies routing in confined spaces and improves accessibility during maintenance. The probe operates with a matched 3300 XL extension cable and proximitor to deliver a calibrated output signal.
Key Technical Specifications
- Model Number: 330706-005-046-10-02-00
- Product Type: 3300 XL 11 mm Reverse Mount Proximity Probe
- Manufacturer: Bently Nevada (a Baker Hughes company)
- System Compatibility: 3300 XL Proximity Transducer System
- Static Sensitivity: 3.94 V/mm (100 mV/mil) ±5%
- Linear Range: 4.0 mm (160 mils) typical
- Probe Tip Diameter: 11 mm
- Mounting Style: Reverse (rear-access) threaded mount
- Thread Specification: M14 × 1.5 (standard for 11 mm probes)
- Cable Length: Integrated 4.6 m (15 ft) polyurethane-jacketed extension cable
- Operating Temperature: –40°C to +177°C at probe tip
- Weight: 0.1 kg
- Dimensions: 116 mm length × 14 mm diameter (probe body); overall length includes cable
- Certifications: CSA, ATEX (for hazardous locations, when used with approved前置器)
- Country of Origin: USA
- Status: Active product, not discontinued
- Minimum Order Quantity: 1 unit
- HS Code: 8537101190
Typical Applications
This probe is widely used in steam and gas turbines, centrifugal compressors, and large motors equipped with fluid-film bearings. It supports critical measurements including thrust collar position, shaft axial movement, differential expansion, and Keyphasor® reference signals. Its robust design ensures stable performance in high-temperature and high-vibration environments common in power plants and petrochemical facilities.
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