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Bently Nevada 164952-01-01 Proximity Probe Sleeve

The Bently Nevada 164952-01-01, also cataloged as the 164952-01-01 Proximity Probe Sleeve, serves as the primary mechanical mounting adapter utilized to execute eddy current proximity probe positioning and gap establishment across Bently Nevada vibration monitoring platforms. It provides a fixed interface between machine casing penetration points and the installed proximity transducer assembly.

Suffix Breakdown & Model Matrix

No manufacturer-published decomposition of the “-01-01” suffix is defined in public technical documentation for this part number. Configuration interpretation is system-dependent and determined by probe housing geometry, thread standard selection, and seal arrangement defined at installation level.

Hardware Specifications

Parameter	Specification
Model	164952-01-01
Brand	Bently Nevada
Origin	USA
Weight	0.1kg
Operating Temp	-51 deg C to +177 deg C (application dependent seal material)
Power Consumption	Passive mechanical component
Product Type	Proximity Probe Sleeve / Mounting Adapter
Material	Stainless steel (typically 303 or 316 class)
Thread Interface	Industrial threaded housing interface (NPT or metric variants dependent on machine design)
Sealing Method	O-ring or compression sealing arrangement (configuration dependent)

Eddy-Current Probe Scaling and Gap Voltage Validation (Bently Nevada TSI Context)

Within Bently Nevada proximity measurement chains, the sleeve defines the mechanical reference axis used for eddy-current probe linearization. Probe standoff calibration is performed against a defined gap voltage transfer function, typically centered around negative DC bias regions (including -10 VDC nominal scaling references in system-level transducer output mapping). Mechanical misalignment introduced at the sleeve interface directly propagates into rotor dynamic measurement error, particularly affecting synchronous vibration and axial position tracking.

Cross-talk suppression is primarily governed by probe concentricity within the sleeve bore and shielding continuity between probe body and machine casing. Improper sleeve seating can introduce phase distortion in eddy-current signal return paths under high shaft rotational velocity conditions.

Frequently Asked Questions (FAQ)

Q: Does the 164952-01-01 support hot-swap probe replacement under pressure boundary conditions?
A: No. Probe removal requires system depressurization and mechanical isolation of the mounting interface to prevent seal compromise and signal drift.

Q: What is the electrical implication of sleeve misalignment on proximity probe output?
A: Misalignment introduces nonlinear variation in the eddy-current field, resulting in degraded gap voltage linearity and increased noise in vibration amplitude measurement.

Q: Can the sleeve affect back-end proximitor driver calibration stability?
A: Yes. Mechanical drift or thread relaxation alters the probe-to-target transfer curve, impacting calibrated output stability of the proximitor system.

Field Installation Guidelines

The sleeve shall be installed using verified thread engagement depth consistent with machine casing design specification. O-ring or sealing element must be inspected for compression uniformity prior to final torque locking. Probe axial insertion must maintain coaxial alignment with shaft target surface to preserve eddy-current field symmetry.

Cable routing from probe head should avoid high electromagnetic interference zones and maintain separation from high-voltage conductors. Grounding continuity between machine casing and monitoring system reference ground must be verified to prevent signal offset due to potential difference accumulation.

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