NN3028M2KC1NA P5 Nachi Cylindrical Roller Bearing Bronze Cage : Tapered Bore 140mm x 210mm x 53mm Made in Japan NN3028M2KC1NA P5 Nachi Cylindrical Roller Bearings Steel Cage Made in Japan the NN3028M2KC1NA P5 inner diameter is 140mm the NN3028M2KC1NA P5 outer diameter is 210mm NN3028M2KC1NA P5 width is 53mm