NN3016M2KC1NA P4 Nachi Cylindrical Roller Bearing Bronze Cage : Tapered Bore 80mm x 125mm x 34mm Made in Japan NN3016M2KC1NA P4 Nachi Cylindrical Roller Bearings, Steel Cage, Made in Japan, the NN3016M2KC1NA P4 inner diameter is 80mm, the NN3016M2KC1NA P4 outer diameter is 125mm, NN3016M2KC1NA P4 width is 34mm.