The unique design of our Tru-Stir™ stirrer shaft coupling eliminates the need to use rubber hose or universal adapters to attach your stirrer shafts to overhead stir motors. Coupling incorporates a unique helical stainless steel spring permitting up to 1/4” of offset misalignment and 45° of angular misalignment. Coupling is rated for 24 in-lbs of torque without the backlash normally associated with common coil springs.
The Tool-Free Tru-Stir™ lower portion of coupling has an anodized aluminum compression nut that secures a 10mm diameter stirrer shaft via a neoprene insert. This unique design allows a Tool-Free connection between the stirrer shaft and coupling. Upper adapter is 5/16” diameter, which permits the coupling to be used with a standard Jacobs style 3-jaw chuck. Overall length of the coupling is 4-3/4”.
The Tru-Stir™ lower portion of coupling has a nylon adapter with a one piece collar for attachment to 10, 19, 25.4 and 30mm stir shafts. Upper adapters permit the coupling to be used with a standard Jacobs style 3-jaw chuck or motors having shaft diameters of 5/16”, 3/8”, 12mm, 1/2”, 5/8” or 3/4”. Adapter is also available for use with CG-2047 flexible shafts having 5/16” end fittings. Overall length of the coupling is 4”. Supplied complete with an allen wrench set.PLEASE NOTE: STIRRER SHAFT COUPLING TO FIT 25.4MM AND 30MM OD STIRRER SHAFTS HAVE A HEAVY DUTY HELICAL S.S. SPRING.