Magnetically coupled substrate roller

摘要

A magnetically coupled roller assembly (15) is provided. A magnet (25) of the roller assembly couples to a magnet (27) of a drive assembly (35). The roller and driver assemblies are separated by a chamber wall and magnetically coupled therethrough. A shaft (23) of the roller assembly (15) is positioned in a pocket (31)formed in the chamber wall, and the roller and driver magnets (25, 27) may be axially offset so as to "pull" the roller toward the interior of the pocket.