330908-21-35-10-02-00 3300 NSv Proximity Probes

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330908-21-35-10-02-00
Minimum Order Quantity:	1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 330908-21-35-10-02-00 is a sophisticated, high-precision eddy current sensor belonging to the esteemed 3300 NSv Proximity Probes family by Bently Nevada. This specific 3300 NSv Proximity Probe is engineered to meet the rigorous demands of industrial vibration monitoring, particularly in scenarios where space is at a premium or target diameters are exceptionally small. As a premier non-contacting transducer, the 330908-21-35-10-02-00 excels at converting the microscopic physical gap between its probe tip and a rotating conductive target into a highly accurate, linear voltage signal. Within the 3300 NSv Proximity Probes series, this model is distinguished by its 2.1-inch unthreaded length and a 3.5-inch overall case length, providing a versatile mounting profile for a variety of industrial bearing housings.

One of the standout features of the 3300 NSv Proximity Probes is their specialized "Narrow Sideview" design. The 330908-21-35-10-02-00 is specifically optimized for applications where the probe must be installed in tight counterbores or restricted internal geometries. Unlike standard 8 mm probes, these 3300 NSv Proximity Probes exhibit minimal side-wall interference, ensuring that the radial vibration and axial position data remain pure and unaffected by surrounding metal structures. This makes the 330908-21-35-10-02-00 an indispensable 3300 NSv Proximity Probe for high-speed turbo-expanders, centrifugal compressors, and small-diameter shafts (less than 51 mm or 2 inches).

Applications

The 330908-21-35-10-02-00 is primarily deployed for radial vibration and axial (thrust) position monitoring in small-bore rotating equipment. Its unique 2.1-inch unthreaded section allows for flexible adjustment and precise gap setting within complex bearing housings. In high-speed centrifugal air compressors and refrigeration units where internal clearances are extremely tight, these 3300 NSv Proximity Probes provide stable and accurate displacement data without being compromised by the proximity of the surrounding metal counterbore walls.

This probe is highly effective for monitoring vibration on small-diameter shafts (typically under 51 mm or 2 inches) found in turbo-expanders and precision process pumps. Standard proximity sensors often lose linearity on such curved surfaces, but the 330908-21-35-10-02-00 is factory-tuned to maintain high accuracy on high-curvature targets. By delivering high-resolution dynamic motion data, it supports advanced predictive maintenance strategies, enabling operators to identify bearing wear or shaft instability at the earliest possible stage.

In demanding petrochemical and power generation environments, the 330908-21-35-10-02-00 serves as a reliable Keyphasor sensor for speed sensing and phase reference. Its robust construction resists the aggressive oils and solvents common in process gas compressors. With a recommended 1.0 mm (40 mils) gap setting and a stable 1.5 mm linear range, it captures once-per-turn timing pulses from shaft notches or keys even under significant thermal fluctuations, providing essential data for vibration phase analysis and zero-speed detection.

Specifications

Competitive Advantage

1. Specialized Narrow Sideview Capability

The most significant edge of the 330908-21-35-10-02-00 is its ability to operate in extremely tight mounting spaces. While standard probes suffer from signal distortion due to "side-view" interference from the mounting hole walls, the 3300 NSv Proximity Probes are designed to ignore the surrounding metal. This allows for accurate measurement in geometries where other sensors physically cannot function.

2. Patented Mechanical Integrity (TipLoc & CableLoc)

Featuring Bently Nevada's patented TipLoc probe-tip molding and CableLoc cable retention, this probe offers industry-leading durability. The probe tip remains permanently bonded to the body under severe vibration, and the cable interface can withstand up to 220 N of pull strength. This prevents common failure points at the connection and tip, ensuring long-term structural integrity in harsh industrial settings.

3. Seamless Retrofit and Global Compatibility

The 330908-21-35-10-02-00 is fully compatible with existing 3300 RAM extension cables and Proximitor sensors. This "drop-in" compatibility allows plants to modernize their vibration monitoring systems without expensive re-engineering or replacing all field wiring. It preserves historical data continuity while providing the enhanced chemical and thermal resistance of the modern NSv series.