Bently Nevada 330901‑00‑40‑10‑11‑05 3300 NSv Proximity Probe
The Bently Nevada 330901‑00‑40‑10‑11‑05, part of the 3300 NSv series, is a miniature proximity probe designed for restricted clearance applications and small shaft vibration monitoring. It is widely used in fluid‑film bearing machinery where reverse mount or side/rearview restrictions prevent the use of standard probes.
Part Number Breakdown
The configuration options are defined as follows:
330901: 3300 NSv Probe, 1/4‑28 UNF thread, without armor
00: Unthreaded length option (0.0 in)
40: Overall case length option (4.0 in / 100 mm)
10: Total cable length option (1.0 metre / 39 in)
11: Connector and cable type option — miniature coaxial ClickLoc connector with protector, standard cable
05: Agency approval option — multiple certifications including CSA and explosion‑proof approvals
Technical Specifications
Parameter
Specification
Application
Tight spaces, small targets, reverse mount, side/rearview restrictions
Measurement
Static (position) and dynamic (vibration)
Thread Size
1/4‑28 UNF
Case Material
Stainless steel (AISI304)
Tip Material
Polyphenylene sulfide (PPS)
Cable Type
Standard coaxial cable with ClickLoc connector
Temperature Range
–34 °C to +177 °C (–30 °F to +351 °F)
Functional Description
The 330901‑00‑40‑10‑11‑05 probe uses eddy‑current technology to measure shaft displacement and vibration. Its extended case length (4.0 in) allows installation in deeper counterbores, while the miniature ClickLoc connector ensures secure attachment. The probe delivers a linear signal compatible with Bently Nevada monitoring systems, enabling accurate diagnostics of machine health.
Key Applications
Compressors: Centrifugal air, refrigeration, and process gas compressors
Restricted Clearances: Reverse mount or side/rearview installations
Small Targets: Radial vibration measurement on shafts under 51 mm (2 in)
