Precision ground glass stirring shafts, 10mm OD, button type, PTFE coating permits higher stirring speeds with Trubore bearings. If used unlubricated, 500 rpm max with water-cooled 8040 bearing. Compatible with 8036, 8038, 8039, 8043, 8047, 8051, 8055 and 13443 bearings. Button type shafts accept...