330171-00-20-10-02-05 | Bently Nevada 5mm Probe 1/4-28 UNF

Product Overview

The Bently Nevada 330171-00-20-10-02-05 is a precision 5mm proximity probe designed for reliable vibration and position monitoring in critical rotating machinery. As part of the 3300 series, this probe uses eddy-current technology to measure shaft vibration and displacement with exceptional accuracy. Its robust construction and multiple agency approvals make it a trusted choice for industrial applications where downtime is costly.

With a 1/4-28 UNF thread and a 1.0-meter cable, this probe integrates seamlessly into existing monitoring systems. The miniature coaxial ClickLoc connector ensures a secure, quick connection, reducing installation time and maintenance effort. By choosing the 330171-00-20-10-02-05, you invest in long-term reliability that minimizes unplanned outages and extends equipment life.

Technical Specifications

Key parameters of the 330171-00-20-10-02-05 include:

Probe Tip Material: Polyphenylene sulfide (PPS) – offers excellent chemical resistance and thermal stability.

Probe Case Material: AISI 304 stainless steel – provides corrosion resistance and mechanical strength.

Thread Size: 1/4-28 UNF, with a maximum thread engagement of 0.375 inches, ensuring secure mounting.

Total Length: 1.0 meter (3.3 feet), ideal for standard machine train installations.

Connector: Miniature coaxial ClickLoc, standard cable – simplifies installation and reduces signal loss.

Weight: 0.323 kg – lightweight yet durable.

Agency Approvals: Multiple – suitable for various global regulatory environments.

These specifications directly impact cost efficiency. For instance, the PPS tip and SST case reduce the need for frequent replacements, lowering total cost of ownership. The ClickLoc connector cuts installation time, saving labor costs. The 1.0-meter length minimizes cable waste, making it a cost-effective choice for new builds or retrofits.

Industry Applications

The 330171-00-20-10-02-05 excels in industries where machinery health is critical:

Power Generation: Monitor turbine shaft vibration to prevent catastrophic failures. The probe's high accuracy allows early detection of bearing wear, avoiding costly outages.

Oil & Gas: In compressors and pumps, this probe provides real-time data that supports predictive maintenance, reducing unplanned downtime and repair expenses.

Manufacturing: For large motors and gearboxes, the probe helps maintain product quality by ensuring stable operation, minimizing scrap and rework costs.

In each scenario, the probe's reliability translates into lower maintenance costs and higher production availability, directly improving your bottom line.

Installation & Setup Guidance

Proper installation is key to maximizing probe performance and longevity. Follow these guidelines:

Drill and tap the mounting hole using a #3 or larger tap drill for the 1/4-28 thread. Ensure the hole depth allows the maximum thread engagement of 0.375 inches.

Apply the recommended probe case torque of 5.1 N·m (45 in·lb), with a maximum of 7.3 N·m (65 in·lb). Over-tightening can damage the probe or distort readings.

Maintain a minimum cable bend radius of 25.4 mm (1.0 in) to prevent cable damage and signal degradation.

When connecting the ClickLoc connector, use the recommended torque of 0.565 N·m (0.42 ft·lbf) maximum to ensure a secure yet non-damaging fit.

Correct installation not only ensures accurate measurements but also prevents premature failure, saving replacement and labor costs.

Maintenance & Reliability

Routine inspection of the probe and cable is essential for sustained performance. Check for physical damage, especially at the cable entry points, and verify that the probe tip is clean and free of debris. The probe operates reliably within a temperature range of -35°C to +177°C, but avoid exposing it to temperatures below -34°C, which can stress the pressure seal.

Regularly test the system's sensitivity and output resistance to ensure it remains within specification. Early detection of drift or degradation helps avoid unexpected failures, reducing the total cost of ownership. By investing in preventive maintenance, you extend the probe's service life and maximize return on investment.

Selection Guide & Purchasing Advice

When selecting a replacement or new probe, verify the following:

Confirm the thread type (1/4-28 UNF) matches your mounting configuration.

Check the total length (1.0 meter) and connector type (ClickLoc) to ensure compatibility with your extension cable and monitor.

Review agency approvals to meet your site's regulatory requirements.

BluePLC Industrial offers genuine Bently Nevada parts with competitive pricing and fast delivery. Contact us to confirm availability and lead times. Our team can help you verify that the 330171-00-20-10-02-05 meets your specific application needs, ensuring you get the right part the first time, saving both time and money.

For complete technical specifications and to place an order, please contact BluePLC Industrial.