Product Details
The Bently Nevada 21000-16-10-00-066-03-02, also cataloged as the 21000 Proximity Probe Housing Assembly, operates as a dedicated hardware component for mechanical environmental sealing and rigid penetration positioning of proximity transducers within machinery protection platforms.
Suffix Breakdown & Model Matrix
| Option Field | Code | Configuration Detail |
|---|---|---|
| Probe Option | 16 | 3300 XL 8 mm probe with connector |
| Probe Cable Length | 10 | 1.0 m (39 in) lead length |
| Standoff Adapter | 00 | No standoff adapter |
| Probe Penetration | 066 | 6.6 in penetration length |
| Fittings Option | 03 | One 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, one cable seal grip with multi-size grommets |
| Mounting Thread | 02 | 3/4-14 NPT outer mounting thread |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 21000-16-10-00-066-03-02 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | Shipping weight: 2.0 kg |
| Dimensions | 6.6 in penetration length, 3/4-14 NPT mounting thread |
| Operating Temp | -51 deg C to +177 deg C (-60 deg F to +351 deg F) (Probe environment) |
| Power Consumption | Passive mechanical housing assembly |
| Internal Probe Type | 3300 XL 8 mm proximity probe |
| Probe Cable Length | 1.0 m (39 in) |
| Cable Seal Grommets | 1/8 to 3/16 in, 1/4 to 5/16 in, 5/16 to 3/8 in |
Gap Voltage Validation and Cross-Talk Suppression
The 21000 series housing enclosure maintains physical alignment of the 3300 XL 8 mm probe tip relative to the target shaft surface. Mechanical position setting is validated during installation by reading DC gap voltage at the connected Proximitor Sensor terminals. Establishing a center-gap target voltage of -10 VDC ensures the probe tip maintains a calibrated offset (typically 1.27 mm / 50 mils on AISI 4140 steel) within its linear output spectrum. Metallic sleeve shielding provided by the penetration tube isolates the high-frequency radio-frequency field, providing effective cross-talk suppression against adjacent signal lines and machine housing components.
Frequently Asked Questions
Q: How is environmental sealing achieved for various extension cable diameters within the 03 fitting option?
A: Option 03 provides a cable seal grip equipped with interchangeable elastomeric grommets designed to seal cable outer diameters of 1/8 to 3/16 in, 1/4 to 5/16 in, and 5/16 to 3/8 in against ingress.
Q: What mounting thread connection is required for this specific assembly configuration?
A: The assembly incorporates Option 02, which provides a standard 3/4-14 NPT male thread connection for direct attachment to machine casing bosses or standoff adapters.
Field Installation Guidelines
- Apply thread sealant to the 3/4-14 NPT outer mounting threads and engage a minimum of 5 full turns into the tapped machine casing port.
- Carefully guide the 3300 XL 8 mm probe sleeve through the housing body, avoiding contact between the probe tip and internal metallic walls.
- Adjust the internal probe penetration length until the probe tip reaches the target location inside the bearing housing.
- Verify mechanical gap positioning by monitoring the Proximitor output with a DC multimeter until the target -10 VDC gap bias voltage is achieved.
- Select the correct grommet size corresponding to the extension cable outer diameter, seat it inside the cable seal grip, and torque the sealing nut to compress the seal without crushing the coaxial cable core.
- Connect the 1.0 m probe cable ClickLoc connector to the extension cable, applying silicone insulator boots to keep the coaxial outer conductor isolated from ground.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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