Bently Nevada 3300 XL 8 mm Reverse Mount Probes Parts

The reverse-mount variant of the 3300 XL 8 mm probe system addresses a specific installation problem: on some machines there is no external access to the probe bore, so the probe must be installed from the inside of the bearing housing before the shaft is fitted. The 330105, 330106 and 330195 references indexed here are that variant — electrically equivalent to the standard 8 mm probes but with a reverse-mount mechanical format.

Replacement planning follows the same rules as the standard system — probe, extension cable and proximitor must form a consistent calibrated chain — with the added practical point that a reverse-mount probe usually cannot be replaced without significant machine disassembly. The product pages document the option set from the original documentation, and the sourcing notes stress verifying case style before ordering.

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