Bently Nevada 330186-02 3300 XL Shaft Micrometer

Manufacturer: Bently Nevada
Product No.: 330186-02
Country of origin:United States
Product Type: Proximity Probe Calibrators
Payment: T/T, Western Union
Weight: 320g
Shipping port: Xiamen
Warranty: 12 months

Description

Optimizing proximity probe calibration and verification in the field, the Bently Nevada 330186-02 serves as a high-precision shaft micrometer within the 3300 XL series family. This precision mechanical instrument enables technicians to physically adjust and measure the gap between a proximity probe tip and a target button to verify the transducer system's voltage-to-gap calibration curve. Outfitted with a high-accuracy metric spindle, this calibration kit ensures that machinery protection systems are matched to exact physical clearances before commissioning.

Features

Precision metric micrometer spindle calibrated for fine mechanical adjustments.
Robust heavy-duty frame designed to minimize thermal expansion and deflection during field testing.
Removable target assembly allowing for the simulation of specific machinery shaft metallurgy.
Integral mounting collar designed to rigidly secure standard 3300 XL 5 mm and 8 mm proximity probes.

Applications

Transducer linearity and scale factor verification in Turbine Supervisory Instrumentation (TSI) packages.
Pre-commissioning calibration checks for critical rotating machinery vibration monitors.
Loop checks and calibration of radial vibration and axial thrust position monitoring channels.
Field validation of proximity sensor outputs under controlled gap steps.

Technical Specifications

Parameter	Specification Value
Manufacturer	Bently Nevada
Part Number / SKU	330186-02
Series	3300 XL
Scale Units	Metric micrometer units (0 to 25 mm)
Spindle Resolution	0.01 mm
Target Material (Standard)	AISI 4140 steel (unless customized)
Probe Size Compatibility	Standard 5 mm and 8 mm proximity probes
Net Weight	2.8 kg (6.2 lbs)
Shipping Weight (Calculated)	4.0 kg (8.8 lbs)

Empirical Engineering Insights

Alternative Models & Compatibility

While the 330186-02 features a metric configuration (0-25 mm), English-scale variants (330186-01, calibrated in mils) are deployed where plant standards dictate imperial measurements. This spindle assembly can be used to calibrate legacy 3300 series proximity probes alongside 3300 XL series equivalents, provided correct adapter sleeves are utilized.

Application Pitfalls & Engineering Notes

Always ensure that the target button attached to the micrometer face matches the metallurgical compound of the target shaft under monitoring. Standard systems assume AISI 4140 steel. Calibrating a proximity system configured for 4140 steel against an incorrect target material block will distort the average scale factor (ASF), rendering the machine protection measurements inaccurate.

Commissioning & Calibration Tips

Before logging voltage readings, cycle the micrometer spindle across its full range three times to displace any grease or debris. Ensure the proximity sensor driver or Proximitor is powered up and stabilized for at least 15 minutes before collecting data points to prevent thermal drift from skewing the calibration curves.

Installation & Calibration Guidelines

CRITICAL SAFETY WARNING: Ensure that the machine is completely shut down, locked out, and all associated overspeed or high-vibration trip logic is bypassed before executing proximity probe physical checks or removal. Unbypassed loops will initiate an emergency shutdown (ESD) sequence during manual calibration.

Mount the micrometer frame securely to a stable, vibration-free work surface or directly onto the machine housing using the designated mounting adapter.

Carefully insert the proximity probe into the micrometer collar until the probe tip lightly contacts the target face at the zeroed micrometer position, then tighten the collar lock nut.

Retract the micrometer in incremental steps (such as 0.25 mm increments), logging the corresponding VDC output from the Proximitor sensor at each mechanical index to construct the calibration profile.

Key Features:

#3300 XL #Proximity Probe Calibrators

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

What is the measurement range of the 330186-02 shaft micrometer?

The 330186-02 is configured for metric measurements, supporting a mechanical calibration range of 0 to 25 mm in 0.01 mm spindle increments.

Does this micrometer come with standard target materials?

Yes, the standard unit features a target button manufactured from AISI 4140 steel, which is the standard reference material for Bently Nevada proximity sensors.

Which probe sizes are compatible with the 330186-02 adapter collar?

It is designed to hold standard 5 mm and 8 mm proximity probes. For non-standard or larger probes, specific adapter bushings may be required.

Why is a shaft micrometer preferred over other calibration methods?

It provides a rigid, micro-adjustable mechanical environment that eliminates hand-tremor and axial alignment errors during transducer verification.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin

Bently Nevada 330186-02 3300 XL Shaft Micrometer