Progressive Engineers manufactures Brushless Slip Rings. Progressive Engineers offers various types of packaging test equipment, solder paste and epoxies, silicones and urethane formulations. The Brushless Slip Rings are used to transfer electrical signal from stationary source to rotating objects without any distortion & loss of signal. These rings are ideal to be used in the place of Slip Ring. These slip rings are well known for their high reliability and high performance. These rings include a housing and plurality of annular spaces, which is disposed in the housing. These are spaced apart along a common longitudinal axis. Further, a cageless assembly of electrically conducive spherical balls is freely rotably disposed in each of the spaces.