LMB203242 1/4 inch Linear Motion Ball BushingLMB203242: Made in Japan: NB Linear Systems Nippon Bearing Linear Systems LMB203242 1 1 4" Bore linear motion ball bushings bearings, inner diameter 1 1 4" inch with steel retainer, made in Japan. The NB slide bush is a linear motion mechanism utilizing the rotational motion of ball elements. The slide bush can be used in a wide variety of applications, including transportation equipment, food processing equipment, and semiconductor equipment. The NB