Bently Nevada 330101-00-20-10-02-05 – 3300 XL 5 mm Proximity Probe for Vibration and Shaft Position Monitoring

The 330101-00-20-10-02-05 is part of Bently Nevada’s 3300 XL 5 mm proximity sensing system, typically used with a matching 3300 XL Proximitor Sensor and an extension cable to measure radial vibration, shaft position, and thrust in critical rotating assets. From my experience, this probe is a dependable drop‑in for plants standardizing on 3300 XL hardware—gas and steam turbines, large compressors, and high‑speed pumps are the usual homes for it.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery time: in‑stock items ship in about 1 week; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express options: FedEx, UPS, DHL

Key Features

• 5 mm probe tip for tight spaces – Fits compact bearing housings and smaller journal diameters where the 8 mm probe is too large.
• Non-contact eddy-current measurement – Stable displacement signal for radial vibration and shaft position when paired with a 3300 XL Proximitor Sensor.
• Industrial temperature performance – Probe assemblies in this family typically handle high process temperatures common around turbine bearings.
• Mechanical robustness – Threaded mount with locknut; resists oil splash and machine vibration when installed to spec.
• System compatibility – Designed for the 3300 XL 5 mm system (probe + extension cable + Proximitor); supports standard 5 m or 8 m system lengths in most cases.
• Repeatable sensitivity – Typically 200 mV/mil (≈7.87 mV/µm) with the matching Proximitor and correct system length, which makes trending straightforward.

Technical Specifications

Application Fields

This probe is commonly specified for:

• Gas/steam turbine radial vibration and shaft relative position
• Large compressors and expanders for bearing condition trending
• Critical API pumps where tight clearances favor 5 mm probes
• Gearboxes and test stands needing stable, high‑bandwidth displacement signals

You might notice that teams choose the 5 mm variant when space is limited near the bearing pedestal, or where a smaller probe face gives better mechanical accessibility without sacrificing accuracy.

Advantages & Value

• Reliability in harsh areas – The 3300 XL line is widely trusted around hot bearings and oil‑rich environments.
• Compatibility – Pairs with 3300 XL Proximitor Sensors and existing plant wiring practices, reducing retrofit complexity.
• Cost control – Consistent sensitivity means faster commissioning and fewer nuisance trips, which in many cases saves outage hours.
• Technical support – We can help verify system length and target material assumptions to keep calibration true to spec.

Installation & Maintenance

• Mounting environment – Install in a rigid bracket or sleeve; cabinet wiring should maintain clean routing to the Proximitor; allow ventilation around the driver hardware.
• Wiring – Use the designated 3300 XL extension cable; avoid tight bends and protect from sharp edges or hot surfaces.
• Gapping – Set the initial gap using a feeler gauge to the recommended nominal gap for the 5 mm system; verify output with a Bently Nevada calibration fixture when available.
• Safety – Lock out the machine before probe adjustments; secure the locknut so the probe doesn’t walk under vibration.
• Routine care – Inspect connectors, clean oil residue, and check cable strain relief during outages; firmware updates apply to monitors, not the passive probe.

A maintenance lead from a combined‑cycle plant told us they typically re‑check probe gap during minor outages and catch small bracket shifts early—simple and it pays off in data quality.

Supporting Components (for a complete system)

• Bently Nevada 3300 XL Proximitor Sensor (5 mm system, matched to total system length)
• Bently Nevada 330102 series extension cable (5 mm system, length to match probe + system requirement)
• Mounting hardware such as probe sleeves, brackets, and locknuts sized for 1/4‑28 UNF or M8×1 threads

Quality & Certifications

• Manufacturer quality systems commonly align with ISO 9001
• CE and RoHS compliance for the probe family, in most cases
• Manufacturer’s standard product warranty: typically 1 year