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    The rollers in the NN type bearing are guided by the ribs of the inner ring.
Double Row Cylindrical Roller Bearings
Double Row Cylindrical Roller Bearings - Dimensions
Unit of Measure
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Item #

d

D

B

r

Static Load Rating

Dynamic Load Rating

NN3038K N/A 7.4803 in190.000 mm N/A 11.4173 in290.000 mm N/A 2.9528 in75.000 mm N/A 0.0827 in2.100 mm N/A 234000 lbf1040000 N1040.00 kN N/A 130000 lbf580000 N580.00 kN
NN3038KC1NAP4 N/A 7.4803 in190.000 mm N/A 11.4173 in290.000 mm N/A 2.9528 in75.000 mm N/A 0.0827 in2.100 mm N/A 234000 lbf1040000 N1040.00 kN N/A 130000 lbf580000 N580.00 kN
NN3040 N/A 7.8740 in200.000 mm N/A 12.2047 in310.000 mm N/A 3.2283 in82.000 mm N/A 0.0827 in2.100 mm N/A 263000 lbf1170000 N1170.00 kN N/A 147000 lbf655000 N655.00 kN
NN3040K N/A 7.8740 in200.000 mm N/A 12.2047 in310.000 mm N/A 3.2283 in82.000 mm N/A 0.0827 in2.100 mm N/A 263000 lbf1170000 N1170.00 kN N/A 147000 lbf655000 N655.00 kN
NN3040KC1NAP4 N/A 7.8740 in200.000 mm N/A 12.2047 in310.000 mm N/A 3.2283 in82.000 mm N/A 0.0827 in2.100 mm N/A 263000 lbf1170000 N1170.00 kN N/A 147000 lbf655000 N655.00 kN
NN3040KC1NAP5 N/A 7.8740 in200.000 mm N/A 12.2047 in310.000 mm N/A 3.2283 in82.000 mm N/A 0.0827 in2.100 mm N/A 263000 lbf1170000 N1170.00 kN N/A 147000 lbf655000 N655.00 kN
NN3040KNAP4 N/A 7.8740 in200.000 mm N/A 12.2047 in310.000 mm N/A 3.2283 in82.000 mm N/A 0.0827 in2.100 mm N/A 263000 lbf1170000 N1170.00 kN N/A 147000 lbf655000 N655.00 kN
NN3044 N/A 8.6614 in220.000 mm N/A 13.3858 in340.000 mm N/A 3.5433 in90.000 mm N/A 0.1181 in3.000 mm N/A 335000 lbf1480000 N1480.00 kN N/A 183000 lbf815000 N815.00 kN
NN3044K N/A 8.6614 in220.000 mm N/A 13.3858 in340.000 mm N/A 3.5433 in90.000 mm N/A 0.1181 in3.000 mm N/A 335000 lbf1480000 N1480.00 kN N/A 183000 lbf815000 N815.00 kN
NN3048 N/A 9.4488 in240.000 mm N/A 14.1732 in360.000 mm N/A 3.6220 in92.000 mm N/A 0.1181 in3.000 mm N/A 360000 lbf1600000 N1600.00 kN N/A 192000 lbf855000 N855.00 kN
NN3048K N/A 9.4488 in240.000 mm N/A 14.1732 in360.000 mm N/A 3.6220 in92.000 mm N/A 0.1181 in3.000 mm N/A 360000 lbf1600000 N1600.00 kN N/A 192000 lbf855000 N855.00 kN
NN3048KC9NAP4 N/A 9.4488 in240.000 mm N/A 14.1732 in360.000 mm N/A 3.6220 in92.000 mm N/A 0.1181 in3.000 mm N/A 360000 lbf1600000 N1600.00 kN N/A 192000 lbf855000 N855.00 kN
NN3052 N/A 10.2362 in260.000 mm N/A 15.7480 in400.000 mm N/A 4.0945 in104.000 mm N/A 0.1575 in4.000 mm N/A 445000 lbf1990000 N1990.00 kN N/A 238000 lbf1060000 N1060.00 kN
NN3052K N/A 10.2362 in260.000 mm N/A 15.7480 in400.000 mm N/A 4.0945 in104.000 mm N/A 0.1575 in4.000 mm N/A 445000 lbf1990000 N1990.00 kN N/A 238000 lbf1060000 N1060.00 kN
NN3052KD1C1NAP5 N/A 10.2362 in260.000 mm N/A 15.7480 in400.000 mm N/A 4.0945 in104.000 mm N/A 0.1575 in4.000 mm N/A 445000 lbf1990000 N1990.00 kN N/A 238000 lbf1060000 N1060.00 kN
NN3056 N/A 11.0236 in280.000 mm N/A 16.5354 in420.000 mm N/A 4.1732 in106.000 mm N/A 0.1575 in4.000 mm N/A 470000 lbf2080000 N2080.00 kN N/A 243000 lbf1080000 N1080.00 kN
NN3056K N/A 11.0236 in280.000 mm N/A 16.5354 in420.000 mm N/A 4.1732 in106.000 mm N/A 0.1575 in4.000 mm N/A 470000 lbf2080000 N2080.00 kN N/A 243000 lbf1080000 N1080.00 kN
NN3060 N/A 11.8110 in300.000 mm N/A 18.1102 in460.000 mm N/A 4.6457 in118.000 mm N/A 0.1575 in4.000 mm N/A 575000 lbf2560000 N2560.00 kN N/A 299000 lbf1330000 N1330.00 kN
NN3060K N/A 11.8110 in300.000 mm N/A 18.1102 in460.000 mm N/A 4.6457 in118.000 mm N/A 0.1575 in4.000 mm N/A 575000 lbf2560000 N2560.00 kN N/A 299000 lbf1330000 N1330.00 kN
NN3064 N/A 12.5984 in320.000 mm N/A 18.8976 in480.000 mm N/A 4.7638 in121.000 mm N/A 0.1575 in4.000 mm N/A 600000 lbf2670000 N2670.00 kN N/A 305000 lbf1350000 N1350.00 kN
NN3064K N/A 12.5984 in320.000 mm N/A 18.8976 in480.000 mm N/A 4.7638 in121.000 mm N/A 0.1575 in4.000 mm N/A 600000 lbf2670000 N2670.00 kN N/A 305000 lbf1350000 N1350.00 kN
NN3068 N/A 13.3858 in340.000 mm N/A 20.4724 in520.000 mm N/A 5.2362 in133.000 mm N/A 0.1969 in5.000 mm N/A 720000 lbf3200000 N3200.00 kN N/A 365000 lbf1620000 N1620.00 kN
NN3068K N/A 13.3858 in340.000 mm N/A 20.4724 in520.000 mm N/A 5.2362 in133.000 mm N/A 0.1969 in5.000 mm N/A 720000 lbf3200000 N3200.00 kN N/A 365000 lbf1620000 N1620.00 kN
NN3072 N/A 14.1732 in360.000 mm N/A 21.2598 in540.000 mm N/A 5.2756 in134.000 mm N/A 0.1969 in5.000 mm N/A 740000 lbf3300000 N3300.00 kN N/A 370000 lbf1650000 N1650.00 kN
NN3072K N/A 14.1732 in360.000 mm N/A 21.2598 in540.000 mm N/A 5.2756 in134.000 mm N/A 0.1969 in5.000 mm N/A 740000 lbf3300000 N3300.00 kN N/A 370000 lbf1650000 N1650.00 kN
Unit of Measure
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