ShaftDianeter BearingDesig-nation Mass Approx Boundary Dinmensions Basic load Rating Limiting Speed d F D B CrDynamic CorSratic Oil Cr Cor mm g mm N rpm 12 NKIA5901 40 12 16 24 16 5047 6352 2010 1620 23000 15 NKIA5902 50 15 20 28 18 8400 9600 2140 2070 21000 25 NKIA5905 130 25 30 42 23 20500 27000 3600 4800 14000 50 NKIA5910X 380 50 58 72 30 42500 75000 6890 11800 8000 70 NKIA5914 980 70 80 100 40 79050 152000 11800 22500 5500 12 NKIB5901 43 12 16 24 17.5 7600 8300 2160 1940 23000 15 NKIB5902 52 15 20 28 20 10600 13600 2340 2370 21000 25 NKIB5905 134 25 30 42 25 23600 31500 4350 5200 14000 50 NKIB5910X 385 50 58 72 34 47000 80000 8100 13700 8000 70 NKIB5914 985 70 80 100 45 84000 156000 13500 25000 5500