BOLA Magnetic Stirrer Heads (G-MRK), PTFEGlossaryPTFE Polytetrafluoroethylene /compoundGlossarycompound Mixture of at least two sorted basic materials added with fillers, reinforcements or other additives to make these basic materials suitable for certain applications. BOLA for example uses compounds for modifying mechanical properties, for matching colours or for flame protection. , Glass

Material: PTFEGlossaryPTFE Polytetrafluoroethylene /compoundGlossarycompound Mixture of at least two sorted basic materials added with fillers, reinforcements or other additives to make these basic materials suitable for certain applications. BOLA for example uses compounds for modifying mechanical properties, for matching colours or for flame protection. 

Material: Glass

Temperature resistance: from -200°C to +250°C

Chemical resistance: +++ universal

Product description
Perfect combination of drive shaft with ball bearings, rotor and lower bearing made of PTFEGlossaryPTFE Polytetrafluoroethylene /PEEKGlossaryPEEK Polyetheretherketone and a conductor made of borosilicate glass. Requires little space due to compact construction. No leakage or memory effects due to non-porous, welded rotor. This rotor holds the stirrer shaft by means of three stud screws which are fixed in the counterbores of the stirrer shaft. This provides optimum power transmission and a safe fixing. The 6 mm square can be fixed into the stirrer coupling or into the agitator.

Product advantages
» powerful transmission
for ground joint size 19/26: 15 Ncm
for ground joint size 29/32 and 45/40: 50 Ncm
» no grease required
» all products which are exposed to the medium do not contain any metals
» high speed of up to max. 1.500 rpm
» high working temperatures up to +250°C are possible
» excellent chemical resistance
» safe to run dry
» long durability
» space-saving drive shaft O.D.'s
for ground joint size 19/26: 28 mm
for ground joint size 29/32 and 45/40: 38 mm