Cylindrical roller bearings, double row, high-precision                                                                   Principal dimensions Basic load ratings Fatigue Attainable speeds Mass Designation     dynamic static load when lubricating with     limit grease oil-air   d D B C C0 Pu   mm kN kN r/min kg -   220 300 80 512 1140 114 2400 2800 16,5 NNU 4944 BK/SPW33   220 340 90 809 1460 143 2200 2600 27,5 NN 3044 K/SPW33   220 340 90 809 1460 143 2200 2600 27,5 NN 3044/SPW33   240 320 80 528 1220 118 2200 2600 17,5 NNU 4948 B/SPC3W33   240 320 80 528 1220 118 2200 2600 17,5 NNU 4948 B/SPW33   240 320 80 528 1220 118 2200 2600 17,5 NNU 4948 BK/SPW33   240 360 92 842 1560 153 2000 2400 30,5 NN 3048 K/SPW33   240 360 92 842 1560 153 2000 2400 30,5 NN 3048/SPW33   260 360 100 748 1700 163 2000 2400 30,5 NNU 4952 B/SPC3W33   260 360 100 748 1700 163 2000 2400 30,5 NNU 4952 B/SPW33   260 360 100 748 1700 163 2000 2400 30,5 NNU 4952 BK/SPW33   260 400 104 1020 1930 183 1900 2200 44 NN 3052 K/SPW33   260 400 104 1020 1930 183 1900 2200 44 NN 3052/SPW33   280 380 100 765 1800 170 1900 2200 32,5 NNU 4956 B/SPC2W33   280 380 100 765