Description
BOLA lower bearing SG-MRK is a dedicated wear part for magnetic stirrer couplings that use a 6 mm shaft and ground joint NS 19/26. The bearing seats the lower end of the stirrer shaft, guiding rotation and reducing friction inside the coupling housing during continuous laboratory operation. It is manufactured from a PTFE-PEEK compound that offers broad chemical resistance together with the dimensional stability required for precise shaft alignment. The component matches BOLA magnetic stirrer couplings SG-MRK with NS 19/26 for shaft diameter 6 mm (article C 512-08) and is supplied as a single piece from manufacturer Bohlender. Net weight is 0,0083 kg. Typical use cases include small-scale synthesis, reaction screening and educational laboratories where compact NS 19/26 glassware is combined with magnetic drive. Replacing the lower bearing restores smooth running characteristics, limits shaft play and helps protect the coupling magnets and seals from uneven load. The PTFE-PEEK construction is compatible with many organic solvents and aqueous media commonly encountered in research and quality-control environments, making the bearing a practical maintenance item for SG-MRK installations.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Lower bearing SG-MRK
- Shaft diameter: 6 mm
- Ground joint: NS 19/26
- Material: PTFE-PEEK compound
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Questions about BOLA Lower Bearing SG-MRK, Ø 6 mm NS 19/26 for BOLA Magnetic Stirrer Heads (SG-M
What is this article?
BOLA Lower Bearing SG-MRK, Ø 6 mm NS 19/26 for BOLA Magnetic Stirrer Heads (SG-M is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Stirring & mixing accessories, inside Stirring, shaking & mixing, in Lab instruments.
Stirring accessories are the bosses, the retort clamps and the spare knobs that hold an overhead stirrer over the vessel. The stand has to carry the motor's mass, not only the flask's.
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 & mixing accessories. The catalogue is Lab instruments.
Shelves beside this one are Magnetic stirring bars, Stirring shafts, propellers & impellers, Magnetic stirrers, 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.
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Luminix Health distributes this article from the heart of Europe. Delivery across the EU, two to five days if in stock. 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
