NN3011M2KC1NA P5 Nachi Cylindrical Roller Bearing Bronze Cage : Tapered Bore 55mm x 90mm x 26mm Made in Japan NN3011M2KC1NA P5 Nachi Cylindrical Roller Bearings, Steel Cage, Made in Japan, the NN3011M2KC1NA P5 inner diameter is 55mm, the NN3011M2KC1NA P5 outer diameter is 90mm, NN3011M2KC1NA P5 width is 26mm.