High-vacuum stirrer bearing

The ACE “ultra vacuum” stirrer bearing, about $800 (compared to the $100-ish standard vacuum stirrer fitting) is only rated to -0.6 Torr.

What types of vacuum stirrer bearings are used in systems SBD systems such as the BR, and what are they rated to?

Best your going to come by is magnetic drive.

1 Like

Ferrofluidic seal is a nice keyword for this search :wink:


1 Like

What type of coupling is used on say, a pope, VTA, or br?