Item # NN3072, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN On NTN Bearing Corp. of America

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The rollers in the NN type bearing are guided by the ribs of the inner ring.

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Technical Specifications

Type	N/A Cylindrical Roller Bearing
Bore Type	N/A Cylindrical
Material	N/A Hardened Alloy Steel
Cage Material	N/A High Strength, 2 piece, Machined Brass
Limiting Speed - Oil	N/A 1200 RPM
Limiting Speed - Grease	N/A 1000 RPM
Precision	N/A ISO Class 0
Configuration	N/A Two
Oil Hole	N/A w/o Oil Hole
Radial Internal Clearance	N/A CN
Static Load Rating	N/A 740000 lbf3300000 N3300.00 kN
Dynamic Load Rating	N/A 370000 lbf1650000 N1650.00 kN
Enclosure	N/A Open
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Open Image Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN - Dimensions
d	N/A 14.1732 in360.000 mm
D	N/A 21.2598 in540.000 mm
B	N/A 5.2756 in134.000 mm
C	N/A 5.2756 in134.000 mm
Ew	N/A 19.4094 in493.000 mm
r	N/A 0.1969 in5.000 mm
da min	N/A 14.9606 in380.000 mm
db min	N/A 15.3937 in391.000 mm
Db min	N/A 19.5669 in497.000 mm
Db max	N/A 20.4724 in520.000 mm
ras max	N/A 0.1575 in4.000 mm