BK1514P Closed End Needle Bearing 15x21x14mmBK1514P Sealed Needle Roller Bearing Shell Type 15mm x 21mm x 14mm BK1514P Sealed Needle Roller Bearing, features dual rubber seals for enhanced protection against dust and contaminants, Bearing inner diameter is 15mm, Bearing outer diameter is 21mm and Bearing width is 14mm. BK1514P Roller Bearing Needle Roller Bearing Size: 15mm x 21mm x 14mm Bearing Inner Diameter: 15mm Bearing Outer Diameter: 21mm Bearing Width: 14mm Closures: Rubber Seals