Types and Usage of the Slip Rings - The Engineering Projects
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ROTOCON M | End-of-Shaft Slip Ring Alternatives (4 Contacts)
Rotary Energy Supply Systems - Slip ring alternatives | igus® UK blog
Meridian Laboratory - ROTOCON Brushless Slip Rings often outlast conventional brushed slip rings between 5 & 25x without the need for maintenance, adjustment, or downtime. . . https://www.meridianlab.com/products/rotocon-m-multi-channel-end-shaft-slip ...
Slip ring substitute promises no wear for life of turbine