Number Of Ball Circuits: 5. LME406280UUOP NB Open Type:Slide Unit Made in Japan:NB Linear Systems LME406280UUOP NB Open Type Bearing, the inner diameter is 40mm, Bearing is seals on both sides, Series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan. This item is in the category "Business, Office & Industrial\Industrial Automation & Motion Controls\Mechanical Power Transmission\Bearings & Bushings\Bearing & Bushing Parts\Other Bearing & Bushing Parts". The seller is "irvineman" and is located in this country: US. This item can be shipped worldwide.