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24701-28-10-00-090-04-02 | Bently Nevada 8mm Proximity Probe Housing
Introduction to the Bently Nevada 24701-28-10-00-090-04-02
When machinery vibration threatens uptime, the 24701-28-10-00-090-04-02 provides a robust solution. This Bently Nevada proximity probe housing assembly is engineered for reliable measurement in demanding industrial environments.
It is part of the 24701 series, designed to house a 3300 XL 8mm proximity probe. The assembly includes a dome cover, threaded ports, a probe sleeve, O-rings, a reverse mount probe, and a thread seal. This ensures complete protection for the sensing element.

Key Features and Technical Specifications
- Probe Option: 3300 XL 8mm with approval option
- Probe Cable Length: 1 meter (39 inches)
- Probe Penetration: 9 inches
- Fittings: One 3/4-14 NPT plug only
- Mounting Thread: 3/4-14 NPT
- Material: 303 stainless steel body with 304 stainless steel sleeve
- Weight: 1.8 kg (4.1 lb) typical without fittings
- Maximum (C)+(D) with visible probe: 17.0 in (43.18 mm)
- Maximum (C)+(D) Dimension: 29.2 in (74.2 mm)
The 8mm probe option is a distinctive feature, offering a compact sensing solution for tight spaces. This size is commonly used in rotating machinery monitoring, providing accurate displacement measurements.
Applications and Use Cases
In turbomachinery, the 24701-28-10-00-090-04-02 is ideal for measuring shaft vibration and position. It is also suitable for compressors, pumps, and motors where reliable proximity sensing is critical.
Furthermore, its stainless steel construction ensures durability in harsh environments, including high-temperature or corrosive areas. Consequently, this housing assembly is a versatile choice for predictive maintenance programs.

Installation and Setup
When installing the housing assembly, ensure the mounting thread is properly aligned with the machine port. The 3/4-14 NPT thread provides a secure fit, and the included plug seals unused openings.
For optimal performance, position the probe so that the target surface is within the recommended gap. Refer to the Bently Nevada manual for detailed gap settings, as they vary by application.
Maintenance and Reliability
Regular inspection of the housing assembly is recommended to verify the integrity of O-rings and seals. This helps prevent contamination and ensures consistent measurement accuracy.
Because the assembly is made of stainless steel, it resists corrosion and wear, extending service life. Consequently, maintenance intervals can be longer, reducing downtime and overall costs.
Compatibility and Integration
The housing assembly is designed for use with Bently Nevada 3300 XL 8mm proximity probes. It integrates seamlessly with Bently Nevada monitoring systems, such as 3500 series racks.
For new installations, verify compatibility with existing cabling and connectors. The 1-meter cable length is suitable for close mounting, but longer runs may require extension cables.
Troubleshooting Common Issues
If readings are erratic, check the probe cable for damage or loose connections. Also, ensure the probe tip is clean and free of debris.
Another common issue is incorrect gap setting, which can cause false alarms. Therefore, always calibrate the system according to the manufacturer's instructions.
Frequently Asked Questions
What is the probe cable length?
The probe cable length is 1 meter (39 inches).
What is the mounting thread size?
The mounting thread option is 3/4-14 NPT.
What materials are used in the housing?
The body is 303 stainless steel, and the sleeve is 304 stainless steel.
Is a standoff adapter included?
No, the standoff adapter option is 00, meaning none is included.
Product Support and Availability
The 24701-28-10-00-090-04-02 is available from Petro Auto Tech, an industrial automation parts supplier. It is new and original in factory packing, with a 12-month warranty.
Contact Petro Auto Tech for current availability and lead times. Their team can assist with technical questions and order processing.
| Part Number | 24701-28-10-00-090-04-02 |
| Condition | In Stock |
| Stock Status | In Stock (Ready to Ship) |
| Weight | 0.5 kg |
| Warranty | 12 Month |
Shipping
Shipping Port: Xiamen
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Warranty
All products come with a 1-year warranty against manufacturing defects. We guarantee 100% new and original products sourced directly from authorized manufacturers.
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