Description
Stainless steel double universal joint, Ø 6,5 mm, for metal shafts is a robust connecting element engineered to compensate for angular or axial misalignment between a stirrer unit and the stirring shaft. Featuring an outer diameter of 6,5 mm and a maximum torque capacity of 3,4 Nm, it delivers reliable torque transmission while protecting the drive train from offset-induced loads. Manufactured from stainless steel, the joint is intended for use with metal shafts in laboratory and technical stirring applications where durability and corrosion resistance are required. The double Cardan design accommodates both angular and axial deviation, supporting stable operation in setups that cannot guarantee perfect alignment. Offered as a single piece with a net weight of 0,142 kg, this coupling component from manufacturer Rettberg fits stirrer coupling and quick-connect configurations. It is well suited to metal-shaft mixing systems that need a compact, high-torque flexible link between motor and shaft without compromising mechanical integrity under continuous use.
This article is part of Stirring shafts, propellers & impellers, in Stirring, shaking & mixing.
Key features
- Pack size: 1 pc
- Outer diameter: 6,5 mm
- Material: Stainless steel
- Max. torque: 3,4 Nm
- Product type: Connecting element
- Technical Information Sheet:
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Questions about Stirrer coupling clamp, Ø 6,5 mm, double universal joint, stainless steel,
What is this article?
Stirrer coupling clamp, Ø 6,5 mm, double universal joint, stainless steel, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Stirring shafts, propellers & impellers, inside Stirring, shaking & mixing, in Instruments de laboratoire.
A shaft, a propeller or an impeller is the wetted end of an overhead stirrer. The diameter and the pitch decide whether the liquid turns over. The material, stainless steel or PTFE, decides what the liquid may be. The chuck size has to match the stirrer.
Stirring keeps a mixture uniform or helps a solid dissolve. A magnetic stirrer spins a bar inside a closed vessel. An overhead stirrer drives a shaft when the liquid is viscous or the volume is large. A vortex mixer agitates a tube. A shaker moves a whole rack or a plate. The shape of the impeller and the speed decide whether the liquid turns over or merely spins. The vessels being stirred are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stirring, shaking & mixing. The sub-category is Stirring shafts, propellers & impellers. The catalogue is Instruments de laboratoire.
Shelves beside this one are Magnetic stirring bars, Magnetic stirrers, Stirring & mixing accessories, Homogenisers & dispersers, Shakers, rockers & rotators, Overhead stirrers and Vortex mixers.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.