ROTOCON MM-Series High Speed Slip Rings | Miniature Slip Rings
Taidacent Small Slip Ring Conductive Ring Miniature Rotating Conductive Slip Ring 2 4 6 8 10 12 24 Road Cap Slip Ring (8 Wire 1A OD 6.5mm Plastic) - - Amazon.com
Slip ring hollow shaft through bore rotating miniature electrical connector - RobotDigg
Senring SNM022A-02 2-Channel 10A Capsule Slip Ring - Voltshop
H0522 miniature through hole slip ring|Miniature slip ring - Senring
Super miniature slip rings Sensor Control Nordic AB