BK2018P Closed End Needle Bearing 20x26x18mmBK2018P Sealed Needle Roller Bearing Shell Type 20mm x 26mm x 18mm BK2018P Sealed Needle Roller Bearing, features dual rubber seals for enhanced protection against dust and contaminants, Bearing inner diameter is 18mm, Bearing outer diameter is 26mm and Bearing width is 18mm. BK2018P Roller Bearing Needle Roller Bearing Size: 18mm x 26mm x 18mm Bearing Inner Diameter: 18mm Bearing Outer Diameter: 26mm Bearing Width: 18mm Closures: Rubber Seals