Pancake type slip ring - Pancake-Schleifringe / Pancake Slip Rings by B-COMMAND - B-COMMAND GmbH - for robotics / for packaging / for military applications
Source Taidacent PCB Pancake Slip Ring Rotary Joint Electrical Connector Through Bore Slip Ring Electrical Rotary 3 6 12 Rings on m.alibaba.com
Pancake slip rings
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MX18102005-Pancake slip ring - MOFLON
Disc slip ring PCB separate ultra-thin conductive slip ring inner hole 12-50mm - | eBay
Pancake slip rings - SCN
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12 Circuits Flat Slip Ring with 60mm Hole Dia Transmitting 3A Current and Signal
Amazon.com: JINPAT 3 Circuits Separate Pancake Slip Ring Transferring Current and Signal for Military Use : Electronics
Disc slip ring PCB separate ultra-thin conductive slip ring inner hole 12-50mm - | eBay