New Chem-Vac™ PTFE stirrer bearing provides a vacuum tight flake-free seal

Two versions of the bearing are available, the standard series for 2 L and smaller vessel capacities and the stabilizer series that incorporates a PEEK®/PTFE stabilizing bushing that is molded to the lower portion of the inner joint. The stabilizer greatly reduces stirrer shaft whip on larger vessels. The bearing consists of a PTFE standard taper body, glass filled polypropylene screw cap, PEEK® Compression spring, PEEK®/PTFE sleeve and a glass filled polypropylene loosening nut. The polymer blend sleeve provides a long lasting seal for use up to 500 rpm. Loosening nut above the standard taper inner joint allows easy and quick removal. PTFE Stirrer sharfts are not recommended for use with this bearing.