Stirrer head for PTFE-jacketed stirrer shafts from BOLA. Consisting of capsuled drive shaft (st. steel) with ball bearings, rotor and lower bearing made of PTFE / PEEK and a hollow shaft made of borosilicate glass. Compact construction. No leakage or memory effects due to non-porous, welded rotor. Compression fittings for safe fixing of stirrer shaft and good power transmission. Joint-Cone with nut (Safe-Lab) for easy locking and unlocking of the ground joint. Square size 6 mm for accepting an agitator or a stirrer coupling. - Gastight stirrer head for very good vacuum. - Stirrer shaft's height adjustable, approx. 40 mm. - Also suitable for shortened stirrer shafts. - Powerful transmission of up to 90 Ncm. - Good chemical resistance. - All products which are exposed to the medium do not contain any metals. - No grease required / save to run dry. - Drive shaft fixed. - High durability. - Easy disassembly of all parts for cleaning. Stirrer head for PTFE-jacketed stirrer shafts from BOLA. Consisting of capsuled drive shaft (st. steel) with ball bearings, rotor and lower bearing made of PTFE / PEEK and a hollow shaft made of borosilicate glass. Compact construction. No leakage or memory effects due to non-porous, welded rotor. Compression fittings for safe fixing of stirrer shaft and good power transmission. Joint-Cone with nut (Safe-Lab) for easy locking and unlocking of the ground joint. Square size 6 mm for accepting an agitator or a stirrer coupling. - Gastight stirrer head for very good vacuum. - Stirrer shaft's height adjustable, approx. 40 mm. - Also suitable for shortened stirrer shafts. - Powerful transmission of up to 90 Ncm. - Good chemical resistance. - All products which are exposed to the medium do not contain any metals. - No grease required / save to run dry. - Drive shaft fixed. - High durability. - Easy disassembly of all parts for cleaning.