An optical connector includes a plastic lens body having a CTE sufficient to withstand solder reflow. The first metallic case element includes at least two metallic case portions joined to each other by a first set of electrical insulators and also includes a lip. With this arrangement, it is possible to prevent forces in the axial direction of the rotary members from acting on the rolling elements, thereby preventing axial movements of the rotary members. For each block, the merged region does not contain the minimum and maximum addresses of the block.