Bently Nevada 24701-28-05-XX-117-03-XX MOD: 323933-00-02 Modified Stainless-Steel Proximity Probe Housing Assembly
A modified 24701 housing assembly with a 3300 XL 8 mm approval-option probe, 0.5 m (20 in) cable and 11.7 in penetration.
Overview
Bently Nevada 24701-28-05-XX-117-03-XX MOD: 323933-00-02 is a modified 24701 stainless-steel proximity probe housing assembly. Option 28 identifies a 3300 XL 8 mm probe with selectable hazardous-area approvals, while cable option 05 identifies a 0.5 m (20 in) probe cable.
The submitted standoff and final mounting-thread positions remain XX and are intentionally unresolved. Penetration 117 defines 11.7 in (297.2 mm), fittings option 03 defines one 3/4-14 npt plug, one 3/4-14 to 1/2-14 npt reducer and one cable seal grip with three grommet ranges, and the modification record is retained as 323933-00-02.
Engineering Data
Functions
The stainless-steel housing combines a threaded dome cover, conduit ports, probe sleeve, O-rings, thread seal and reverse-mount 3300 XL 8 mm probe.
The full ordering string controls cable length, optional standoff, penetration, fittings and mounting-thread selection as one mechanical identity.
The protected housing supports external probe mounting while preserving access for adjustment and service.
A sleeve support is required whenever the selected standoff plus probe-penetration dimension exceeds 300 mm (12 in).
Applications
- Externally mounted radial-vibration or shaft-position measurement on rotating machinery.
- Protected probe access on bearing housings where conduit entry and sleeve geometry must be controlled.
- Like-for-like replacement of a documented modified 24701 housing execution.
- Hazardous-area installations only after the complete probe approval option and site drawing have been verified.
Lifecycle & Service
- Record the complete 24701 code, MOD reference, installed standoff, penetration and mounting thread before removal.
- Measure the available machine-case depth and calculate the actual standoff-plus-penetration dimension before ordering.
- Keep the probe lead longer than the sleeve and add approved sleeve support when the 300 mm threshold is exceeded.
- After installation, verify probe gap, cable routing, housing sealing, channel response and the approved alarm or trip test.
FAQ
Why is sleeve support for 24701-28-05-XX-117-03-XX MOD: 323933-00-02 not decided from 11.7 in alone?
The requirement is based on standoff plus penetration. Because the standoff in 24701-28-05-XX-117-03-XX MOD: 323933-00-02 is XX, the combined dimension must be measured before the support decision is closed.
What does fittings option 03 add to 24701-28-05-XX-117-03-XX MOD: 323933-00-02?
It adds a 3/4-14 NPT plug, a 3/4-14 to 1/2-14 NPT reducer and a cable seal grip with grommets for three cable-size ranges.
Can the 0.5 m cable on 24701-28-05-XX-117-03-XX MOD: 323933-00-02 support any standoff and penetration combination?
No. The 24701 table limits the maximum combined C plus D dimension for the 0.5 m probe cable to 343 mm (13.5 in).
Which dimensions must be checked before ordering 24701-28-05-XX-117-03-XX MOD: 323933-00-02?
Confirm the unresolved standoff, the 11.7 in penetration, mounting thread, machine-case depth, target location and the cable path inside the housing.
How is MOD 323933-00-02 handled when replacing 24701-28-05-XX-117-03-XX MOD: 323933-00-02?
Retain the MOD reference as part of this exact supply identity and compare it with the installed label and controlled order record; do not treat it as interchangeable with another MOD.
