BK2518P Closed End Needle Bearing 25x35x18BK2518P Sealed Needle Roller Bearing Shell Type 25mm x 32mm x 18mm BK2518P Sealed Needle Roller Bearing, each bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination, Bearing inner diameter is 25mm, Bearing outer diameter is 32mm and Bearing width is 18mm. Item: BK2518P Roller Bearing Type: Needle Roller Bearing Size: 25mm x 32mm x 18mm Bearing Inner Diameter: 25mm Bearing Outer Diameter: 32mm Bearing Width: 18mm