1.Product Name:Through bore slip ring 2.Rated Current:10A,15A,20A etc  ok to follow customer's requirement . 3.Voltage:0-380VAC/240VDC 4.Nos of wires:6P 5.RPM:0-300RPM as standard 6.Specifcation:ID12mm,OD54mm 7.Outer shell material:Alumninum 8.inside material:precious metal 9.the professional engineers will make the models perfect follow your requirement. 10.OEM/ODM welcome  11.Rings:Copper alloy with full hard gold plating 12.Aluminum die-casting 13.Stainless steel 304 14.Direction Rotation:CW-CCW 15.Temperature Range:-30/80