MDC2578 Slip Ring: Number of rings:2,4,6,8,10,12,24 Rated current: 5A Interior Diameter:25mm Slip ... structure.A slip ring is also calleda rotary electrical interface,collector,swivel,or a rotary joint. A slip ring can improve system ... not require lubrication and produce virtually no wear debris.Applications:Rotary index tables,machining centers etc industrial machineryCable reelst,est equipment ...