Taidacent Hollow Slip Ring Rotary Electrical Contact 2/4/6/12 Wires Collector Ring Conductive Electric Motor Slip Ring Rotating Connector (6 Wires 10A Inner Hole 12.7mm OD 54mm) - - Amazon.com
Taidacent Through Bore Electrical Slip Ring Rotary Electrical Contact 6/12/18/24 Wire Rotate Conductive Energization Collector Ring Brushes Hollow Shaft (6 Wires Inner Hole 7mm Outer Diameter 33mm) : Amazon.in: Jewellery