Bently Nevada 330173-05-10-10-02-00 Proximity Probe — Product Description, Technical Specifications, Applications, and Related Models

1. Product Overview

The Bently Nevada 330173-05-10-10-02-00 is a model designation within the 3300-series proximity probe product family, used in machinery condition monitoring and shaft-displacement measurement applications. Proximity probes are commonly installed near rotating shafts to detect changes in the gap between the probe tip and the target surface. When used with a compatible extension cable and proximity sensor, they form part of a non-contact measurement system for monitoring shaft vibration and relative shaft position.

This type of sensor is particularly useful for rotating machinery that requires continuous condition monitoring, including turbines, compressors, pumps, motors, and other critical industrial equipment. It enables maintenance personnel to observe changes in shaft motion and identify abnormal operating conditions before they develop into more serious equipment problems.

Model identification note: The complete suffix is important because it can specify probe dimensions, cable length, connector style, and other configuration details. The exact meaning of every field in 330173-05-10-10-02-00 should be confirmed against the applicable ordering-code specification before purchasing or replacing the probe. The dimensions and weight below are therefore identified as estimates or items requiring confirmation where an exact configuration-specific value cannot be established confidently.

2. Technical Specifications

3. Model Number Interpretation

The model number can be divided into several configuration fields. These fields are important when selecting a replacement probe because even products from the same family may differ in mounting dimensions, cable length, or installation requirements.

The model code identifies a probe with a 50 mm unthreaded section, a 100 mm overall case-length option, a 1.0 m cable-length option, and a miniature coaxial connector. The unarmored design is generally suited to installations where the cable does not require additional mechanical armor.

The final approval field is also important. The -00 configuration should not automatically be treated as approved for every hazardous area. Where the probe will be installed in a classified location, confirm the required approvals for the complete measurement system.

4. Product Introduction

The Bently Nevada 3300 5 mm proximity probe is a non-contact sensor designed to measure the distance between the probe tip and a conductive target. In rotating machinery applications, the target is often the surface of a shaft. As the shaft moves relative to the probe, the electrical characteristics of the sensing system change, allowing the connected monitoring equipment to measure the movement.

Unlike a contact sensor, the probe does not need to touch the rotating shaft during normal operation. This makes it suitable for continuous measurement in equipment that operates at high speed, under changing loads, or for extended periods between maintenance shutdowns.

The 330173 model uses an M8 × 1 threaded mounting configuration. This compact metric thread can be useful where installation space is limited and the machinery housing has been designed for this mounting format. Its unarmored construction also provides a flexible installation option when the cable can be adequately protected and routed away from moving parts, sharp edges, excessive heat, and sources of electrical interference.

The probe is not normally intended to operate as a completely independent measuring instrument. It is part of a compatible proximity transducer system, which typically includes an extension cable and a proximity sensor. The components must be electrically and mechanically compatible to achieve the specified measurement performance.

In practice, the probe is installed with a defined clearance from the target surface. The signal from the complete system can then be used by machinery protection or condition-monitoring equipment to track changes in shaft position and vibration. A properly installed system helps maintenance teams establish normal operating conditions and recognize deviations that may require further investigation.

5. Main Technical Characteristics

5.1 Non-contact measurement

The probe measures a target without physical contact. This reduces wear at the sensing interface and makes the device suitable for continuous observation of rotating machinery.

The absence of normal mechanical contact does not eliminate the need for correct installation. The probe must be mounted securely, with sufficient clearance from the shaft and with the correct target material and measurement-system configuration.

5.2 Compact metric mounting

The M8 × 1 threaded configuration is intended for compatible mounting points. Before installation, the user should check the available thread depth, probe clearance, mounting bracket arrangement, and the actual dimensions shown on the installation drawing.

The stated 50 mm unthreaded-length option and 100 mm overall case-length option describe different dimensional aspects of the probe assembly. They should not be interpreted as interchangeable measurements.

5.3 Cable and connector configuration

The 1.0 m total-length option and miniature coaxial ClickLoc connector are significant when planning cable routing and connections. The cable must reach the intended connection point without excessive tension, sharp bends, or exposure to damaging temperatures.

The probe must be paired with the correct extension cable and proximity sensor. Mixing incompatible cable lengths or sensor types can affect calibration, sensitivity, and the accuracy of the overall measurement.

5.4 Materials and mechanical construction

The 3300 5 mm probe family uses a polymer sensing tip and a stainless-steel probe case. These materials support the compact sensor construction and industrial installation requirements.

The unarmored cable arrangement should be selected only where the installation provides adequate protection. If the cable will be exposed to abrasion, crushing, repeated movement, or other mechanical hazards, a suitable armored configuration or additional cable protection may be more appropriate.

5.5 Measurement performance

The usable linear range, sensitivity, and output characteristics depend on the complete compatible transducer system and its specified calibration. The 5 mm designation identifies the probe family; it should not be interpreted as a guaranteed 5 mm linear measurement range.

For critical machinery protection, the gap setting, target material, probe mounting, cable combination, and monitor configuration must be checked together. The system should be commissioned using the manufacturer’s specified procedure rather than relying only on the nominal probe dimensions.

6. Product Applications

6.1 Steam and gas turbines

Proximity probes can monitor relative shaft vibration and shaft position at designated bearing locations. Their measurements help maintenance teams identify changes in vibration behavior, shaft movement, or operating stability that may warrant further inspection.

6.2 Industrial compressors

In centrifugal compressors and similar machines, non-contact shaft measurement can support vibration monitoring, trend analysis, and the investigation of abnormal mechanical behavior. A suitable probe installation helps maintain consistent measurement during changing operating loads.

6.3 Pumps and motor-driven equipment

The probe can be used in compatible pump and motor installations to monitor shaft movement. Trend information may help identify developing issues associated with bearing condition, alignment, or changes in the rotating assembly, although diagnosis requires other operating data and engineering assessment.

6.4 Gearboxes and other rotating machinery

Where the target surface, mounting geometry, and measurement system are suitable, proximity sensing can contribute to shaft-motion monitoring in gearboxes and other rotating equipment.

6.5 Continuous condition-monitoring systems

Installed as part of a complete monitoring arrangement, the probe provides a signal that can be evaluated alongside other measurements, such as vibration, temperature, and operating speed. This helps maintenance personnel compare current behavior with established baseline conditions.

7. Product Advantages

Non-contact operation. The probe measures the target without normal physical contact, reducing wear at the measurement interface and supporting continuous monitoring of rotating shafts.

Compact installation format. The M8 × 1 mounting thread and compact sensing arrangement can accommodate installations where available space is limited, provided the mounting geometry is suitable.

Suitable for continuous measurement. When installed as part of a compatible system, the probe can provide ongoing shaft-motion data for machinery protection and condition-monitoring applications.

Useful for trend analysis. Measurements collected over time can help maintenance teams identify changes from normal operating conditions. Trend analysis is generally more informative than relying on a single reading.

Flexible integration. The probe can be incorporated into a compatible measurement chain with an extension cable and proximity sensor, allowing the resulting signal to be used by suitable monitoring equipment.

Reduced routine wear at the sensing point. Because the probe does not normally contact the shaft, there is no regular sliding contact between the sensing tip and the target surface. Correct clearance remains essential to prevent accidental contact.

Practical replacement planning. The model’s ordering code provides a structured way to identify its mounting and cable configuration. This makes it easier to compare replacement options, as long as the complete code and installation drawing are checked before substitution.

Support for preventive maintenance. Changes in shaft vibration or position can provide useful evidence when investigating equipment behavior. The probe contributes measurement data; it does not independently determine the root cause of a mechanical fault.

8. Brand and Product Series

The 3300 5 mm product family is intended for applications requiring non-contact shaft measurement. It is important to distinguish the probe itself from the complete transducer system. The probe, extension cable, proximity sensor, and monitoring channel must be matched to the intended application.

The specific model is best considered a component for a compatible machinery monitoring installation, rather than a stand-alone vibration analyzer.

9. Five Related Models in the Same Series

The following models are useful comparison candidates when selecting a replacement or a probe for a different mounting arrangement. Dimensions and weights are approximate where stated; the exact mechanical drawing and complete part number should take precedence.

How to choose among these related models

– For a similar M8 × 1 installation: Compare the case length and unthreaded length first. The mounting geometry must match the existing equipment.

– For a shorter or longer probe body: Select the appropriate case-length option only after checking the available clearance and mounting drawing.

– For mechanically exposed cable routing: Consider the armored variant if its dimensions and system compatibility suit the installation.

– For an existing imperial-thread mounting point: The 330171 family may be worth considering, but its 1/4-28 UNF thread is not interchangeable with M8 × 1.

– For a replacement purchase: Match the complete part number, cable configuration, connector, approval requirement, and compatible sensor. Similar model numbers do not automatically guarantee interchangeability.

Note: The comparison models above are suggested configuration candidates, not confirmation that every combination is an orderable standard part number. Confirm the full ordering code before procurement.

10. Five Popular Related Models from the Same Brand

The following products represent other commonly used components in industrial machinery monitoring. They include different probe families and system components, so they are not all direct substitutes for the 330173.

Important notes about these models

The 3300 XL 8 mm probe family is not a direct drop-in replacement for a 3300 5 mm probe. The sensing system, probe geometry, calibration characteristics, and associated electronics must be compatible with the application.

The 330180 is a proximity sensor component rather than a probe. Its purpose is to condition the probe signal as part of the measurement chain. The appropriate version depends on the probe family, required system length, installation method, and monitoring equipment.

The 330730 is an extension-cable model designation. Cable length, connector type, and compatibility must be checked against the exact code. An extension cable should not be selected solely on the basis of physical length.

The weights in this table are intentionally marked as requiring verification where reliable configuration-specific figures are unavailable. A shipping weight should not be treated as the net weight of the product.

11. Installation and Maintenance Considerations

11.1 Confirm the mounting dimensions

Before installing the 330173-05-10-10-02-00, verify the M8 × 1 thread, the 50 mm unthreaded-length option, the 100 mm case-length option, and the mounting clearance. Ensure the probe does not interfere with the rotating shaft during startup, shutdown, or changes in operating conditions.

11.2 Verify the complete transducer system

Confirm that the probe is paired with the correct extension cable and proximity sensor. An apparently suitable probe may still produce incorrect measurements if its cable or sensor is not compatible with the original system.

11.3 Protect the cable and connector

Route the unarmored cable away from moving machinery, sharp edges, hot surfaces, and sources of mechanical damage. Avoid excessive tension and tight bends. Keep the connector clean and secure, and inspect the cable jacket for cuts, crushing, or deterioration.

11.4 Set the measurement gap correctly

The initial probe gap is a critical installation parameter. Follow the specified gap-setting procedure for the complete measurement system, and verify the signal using the appropriate monitoring or test equipment. Do not determine the gap from the physical dimensions alone.

11.5 Inspect during maintenance

During planned shutdowns, inspect the mounting point, probe body, cable, connector, and surrounding target surface. Look for loose mounting, damaged insulation, contamination, corrosion, or signs of contact between the probe and the shaft.

11.6 Keep configuration records

Record the full model number, mounting dimensions, cable arrangement, sensor model, channel assignment, and baseline readings. These details can simplify future replacement work and reduce the risk of installing a component with the wrong configuration.

12. Purchasing and Replacement Checklist

Use this checklist before ordering the target model or a related alternative.

• Confirm the full model number: 330173-05-10-10-02-00.
• Confirm the M8 × 1 mounting thread.
• Confirm the 50 mm unthreaded-length option.
• Confirm the 100 mm case-length option.
• Confirm the 1.0 m cable-length option.
• Confirm the miniature coaxial ClickLoc connector.
• Verify the approval requirements for the installation area.
• Confirm compatibility with the existing extension cable and proximity sensor.
• Check the mechanical drawing and the actual overall dimensions.
• Obtain the net product weight in kilograms if required for shipping or inventory records.
• Confirm whether the replacement is intended for the original monitoring system or a new installation.

13. Summary

The Bently Nevada 330173-05-10-10-02-00 is a 3300 5 mm proximity probe configuration intended for non-contact shaft-motion measurement within a compatible machinery monitoring system. Its identified configuration includes an M8 × 1 mounting thread, a 50 mm unthreaded-length option, a 100 mm case-length option, a 1.0 m cable-length option, and a miniature coaxial ClickLoc connector.

Its principal benefits are non-contact measurement, compact threaded mounting, suitability for continuous monitoring, and integration with compatible machinery protection and condition-monitoring equipment. Typical applications include turbines, compressors, pumps, motors, and other rotating machinery.

When choosing a replacement, the most important considerations are not the model number alone, but also the mounting geometry, cable configuration, connector, compatible sensor, approval requirements, and calibration of the complete system. Exact dimensions and net weight should be taken from the configuration-specific drawing rather than estimated from a similar model.