English Ball Bearing Translation Stages with an English hole pattern on both the top and bottom plates have a preloaded ball bearing design that offers straight line accuracy of 0.00008inch per inch of travel. These stages are available in a variety of stage sizes with multiple options of drive orientation, travel distance, and drive mechanism, as well as top plates with or without a clearance thru-hole. The English and Metric micrometer models offer graduations of 0.001inch or 0.01mm for applications that require a position readout while the Fine Screw (64 Pitch) models offer fine resolution positioning. English Ball Bearing Translation Stages are designed to have low friction, providing smooth linear motion without backlash or sideplay. All stages include screws for creating an X-Y stage and a position lock.