Bently Nevada 24701-28-05-XX-014-04-XX MOD: 323933-40-02 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 1.4 in penetration.
Product Profile
Bently Nevada 24701-28-05-XX-014-04-XX MOD: 323933-40-02 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 014 defines 1.4 in (35.6 mm), fittings option 04 defines one 3/4-14 npt plug only, and the modification record is retained as 323933-40-02.
Technical Data
System Role
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).
Compatibility & 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.
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.
FAQ
Q01Why must the 014 block in 24701-28-05-XX-014-04-XX MOD: 323933-40-02 be checked against the similar 015 execution?+
It specifies 1.4 in rather than 1.5 in penetration, so the target reach and available adjustment differ even though other fields are similar.
Q02May 24701-28-05-XX-014-04-XX MOD: 323933-40-02 require a machine-case counterbore?+
Yes. The manufacturer notes that its 1.0 to 2.0 in penetration range may need a counterbore to reduce side-view or rear-view effects.
Q03What does MOD 323933-40-02 establish for 24701-28-05-XX-014-04-XX MOD: 323933-40-02?+
It identifies the submitted modification record only. Its detailed construction must be confirmed from the controlled documentation, not inferred from the number.
Q04Which fitting is supplied with 24701-28-05-XX-014-04-XX MOD: 323933-40-02?+
Option 04 provides one 3/4-14 NPT plug only; no reducer or cable seal grip is defined by this option.
Q05How can commissioning 24701-28-05-XX-014-04-XX MOD: 323933-40-02 avoid probe-tip contact?+
Set the probe electrically, preserve mechanical clearance, rotate or operate the machine only under the approved procedure, then confirm stable gap and dynamic response.
