Single-row deep groove radial ball bearings are the most common type of miniature ball bearings. It has a wide range of suitable applications. The raceway grooves on both inner and outer rings have circular arcs of slightly larger radius than that of the balls. In addition to radial loads, axial loads can be applied in either direction. Because of their low torque, they offer high-speed operation with low power loss.

A flat Miniature cable assembly comprising a plurality of parallel coaxial cables disposed in coplanar configuration, each cable being self-contained and with a center conductor, dielectric material around the conductor and a shield of conductive material around the dielectric material, a plurality of drain wires disposed between alternate pairs of adjacent coaxial cables, the drain wires having conductive contact with the shields of the pair of adjacent cables, and a sheath of insulating material encasing the cables and the drain wires with portions thereof on opposite sides of the cables bonded together by way of the spaces between the cables where the drain wires are omitted and at the sides of the outermost cables.

Miniature Coaxial Cables is used to transmit high frequency energy and signals with low loss, with reflection less matching. Characteristic Impedance and Attenuation are important concepts for such transmission. Characteristic Impedance is determined by the ratio of dielectric OD to conductor diameter. It consists of a core conductor, surrounded by pure PTFE dielectric (solid or foamed or air-spaced), covered with a metal shield, and finally encased in an overall jacket. The shield provides the return path and the confinement for RF energy, and is generally grounded. Transmission through coaxial cables is called an unbalanced transmission because the centre conductor and the shield are not reversible.