
Bently Nevada 31000-16-05-00-65-03-02 | 3300 XL Probe Assembly with Fittings Kit
Product Introduction
The Bently Nevada 31000-16-05-00-65-03-02 is a complete proximity probe housing assembly. Specifically, this unit includes a factory-installed 3300 XL 8mm proximity probe with a 0.5-meter cable. The housing assembly enables external access to the probe and extension cable. Consequently, engineers can adjust the probe gap or replace the sensor without disassembling the machine. This feature significantly reduces maintenance downtime.
We design this housing for extreme industrial environments. The main housing body uses glass-reinforced polyphenylene sulfide (PPS) thermoplastic with conductive fibers. This material offers excellent corrosion resistance. Furthermore, the sleeve and retaining chain utilize AISI 304 stainless steel, while external screws are AISI 303 stainless steel for maximum durability.
Core Value
The Bently Nevada 31000-16-05-00-65-03-02 delivers three primary benefits. Firstly, it provides robust environmental protection. The housing achieves IP66 and NEMA Type 4X ratings, ensuring dust-tight and hose-down water protection. This feature is critical for protecting sensitive sensors in harsh conditions.
Secondly, the assembly offers comprehensive mounting flexibility. The model suffix '03' includes a complete fittings kit. This kit contains two plugs, one 3/4-14 NPT fitting, one 3/4-14 to 1/2-14 NPT stainless steel reducer, and an adjustable cable seal grip with three interchangeable grommets for various cable sizes. This setup allows seamless integration with most conduit systems.
Thirdly, this configuration supports hazardous area compliance. The conductive housing dissipates electrostatic charges as per CENELEC EN50014. Moreover, it has a wide operating temperature range from -51°C to +105°C (-60°F to +221°F) and withstands significant impact forces.
Technical Insights
Understanding the model number suffix helps engineers select the correct part. The Bently Nevada 31000-16-05-00-65-03-02 decodes as follows:
31000: Base series for Proximity Probe Housing Assemblies.
16: Specifies the standard 3300 XL 8mm probe (without multiple approvals).
05: Indicates a probe cable length of 0.5 meters (20 inches).
00: Denotes no standoff adapter (direct mount configuration).
65: Refers to a probe penetration depth of 6.5 inches (165 mm).
03: Represents the fittings kit option with plugs, reducer, and cable seal grip.
02: Specifies the mounting thread as standard 3/4-14 NPT.
The mechanical load capacity is also significant. Specifically, the housing supports 912 N (205 lb) when a load is placed 38 mm from the unsupported end. This robust design ensures stable probe positioning, which is essential for accurate vibration and position measurements.
Installation & Maintenance
Proper installation of the Bently Nevada 31000-16-05-00-65-03-02 ensures reliable operation. Follow these key steps:
Torque Specification: Tighten the retaining nut to 29.4 N·m (260 in·lb) to achieve an optimal seal.
O-Ring Check: Ensure the Neoprene O-ring is properly seated before mounting to maintain the IP66 seal.
Grounding: Verify the grounding liner is installed to comply with electrostatic safety standards (CENELEC EN50014).
Cable Management: Avoid sharp bends near the 3/4-14 NPT fitting to maximize cable life.
For maintenance, follow these guidelines:
Regular Inspections: Periodically check for signs of wear, corrosion, or contamination.
Cleaning: Use non-abrasive materials to clean the housing surface and sensor face.
Seal Inspection: Inspect the O-ring and seals for cracking or damage during routine maintenance to preserve the housing's environmental rating.

Buyer's Guide FAQ
Q1: What is the difference between probe option '16' and '28'?
A: Option '16' is the standard 3300 XL 8mm probe. Option '28' is the same probe but with multiple approvals (CSA/ATEX/IECEx) for hazardous locations. Choose based on your area classification requirements.
Q2: Is the probe pre-installed in this housing?
A: Yes. The Bently Nevada 31000-16-05-00-65-03-02 includes a factory-installed 3300 XL 8mm probe (option '16'), and it is ready to use out of the box.
Q3: What is the maximum probe penetration for the 31000 series?
A: The 31000 series supports probe penetration up to 30 inches, depending on cable length limits. This model offers a 6.5-inch penetration depth.
Q4: Can this housing withstand internal pressure?
A: No. The housing is certified for NEMA 4X and IP66 for external water protection but is not designed to resist internal or external pressure. For pressurized applications, contact the custom design department.
Q5: What does the fittings kit (option '03') include?
A: Option '03' includes two plugs, one 3/4-14 NPT fitting, one 3/4-14 to 1/2-14 NPT stainless steel reducer, and a cable seal grip with three interchangeable grommets for cable sizes ranging from 1/8 inch to 3/8 inch.











