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Charlotte Stonestreet
Managing Editor |
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Stainless steel shaft couplings
12 June 2026
STAINLESS shaft couplings are used in the food, pharmaceutical, and medical technology sectors because they are corrosion-resistant, easy to clean, and hygienic. Their smooth, stainless surface prevents the accumulation of dirt and germs, meeting stringent hygiene requirements.
JAKOB Antriebstechnik now offers various stainless steel couplings as standard product series: the KG-VA, KGH-VA, and MKG-VA metal bellows couplings; the WD-VA and WDB spacer coupling series; the EKM-VA elastomer coupling; and the SKVA-N and SKVA-K safety couplings (including variants).
Both the KGH-VA metal bellows coupling and the WD-VA series feature a split-hub design that facilitates easy installation. This construction allows for simple mounting and dismounting, even in confined spaces. The fixed hub halves are simply placed onto the shaft and bolted to the loose split-hub sections. This saves time – especially with fixed shaft ends – by eliminating the need for the complex disassembly of drive or output units. Thanks to their stainless steel construction, these couplings are also ideally suited for use in the food industry.
The KG-VA series is suitable for temperatures up to 350°C and is designed for shaft diameters ranging from 10 to 90 mm and torques from 30 to 1000Nm. The KGH-VA series is wear-free and maintenance-free; it is also rated for temperatures up to 350°C and covers shaft diameters from 7 to 85mm and torques from 10 to 1200Nm. It is available in variable overall lengths with either 2- or 4-convolution bellows. The MKG-VA is a miniature metal bellows coupling featuring a clamping hub; available with either a two- or four-convolution bellows, it can transmit up to 15 Nm of torque and operate at temperatures up to 350°C.
A new addition to the product range is the EKM-VA elastomer coupling, capable of transmitting torques up to 500Nm and operating at temperatures up to 90°C. It features an easy-to-install clamping hub.
The WD-VA spacer coupling is available in variable lengths of up to 3m and ensures backlash-free torque transmission. It is also suitable for temperatures up to 350°C and accommodates shaft diameters ranging from 7 to 85mm, with torque capacities between 10 and 1200Nm.
The SKVA-N and SKVA-K series safety couplings are designed for indirect drives, while the SKVA-EK and SKVA-KG series are intended for direct drives. They are suitable for use in the food processing and medical technology sectors, where exceptionally high hygiene standards are required. The non-elastomer series offer superior heat resistance, making them ideal for applications in ovens or refrigeration systems.
