Taidacent Through Bore Electrical Slip Ring Rotate Conductive Energization Collector Ring Brushes Hollow Shaft Slip Ring (6 Wire Inner Hole 5mm X OD 22mm): Amazon.com: Tools & Home Improvement
ID12.7mm 6-Channel, 10A, Through-bore Slip Ring - Roda Electric
H25119 Series Through Bore Slip Ring - Senring
How To Install And Use Through-Hole Slip Ring? - Grand
Through-bore slip rings for your application - LTN Servotechnik GmbH
Through Bore Slip Ring, 25.4/38.1/40/50/60/80 mm Hole Diameter | ATO.com
Slip ring hollow shaft through bore rotating miniature electrical connector - RobotDigg
Sibley Company - Through Bore Slip Rings
Through Bore Slip Ring For Test Rigs & Production | Rotary Systems, Inc.
Through bore slip rings
Senring SNM012-12P 12-Channel 10A Through-bore Slip Ring - Voltshop