NN3020M2KC1NA P4 Nachi Cylindrical Roller Bearing Bronze Cage : Tapered Bore 100mm x 150mm x 37mm Made in Japan NN3020M2KC1NA P4 Nachi Cylindrical Roller Bearings, Steel Cage, Made in Japan, the NN3020M2KC1NA P4 inner diameter is 100mm, the NN3020M2KC1NA P4 outer diameter is 150mm, NN3020M2KC1NA P4 width is 37mm.