Item # NN3056, 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 1600 RPM
Limiting Speed - Grease	N/A 1300 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 470000 lbf2080000 N2080.00 kN
Dynamic Load Rating	N/A 243000 lbf1080000 N1080.00 kN
Enclosure	N/A Open
Weight	N/A 112.656 lb51.100 kg
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN - Dimensions
d	N/A 11.0236 in280.000 mm
D	N/A 16.5354 in420.000 mm
B	N/A 4.1732 in106.000 mm
C	N/A 4.1732 in106.000 mm
Ew	N/A 15.1181 in384.000 mm
r	N/A 0.1575 in4.000 mm
da min	N/A 11.6535 in296.000 mm
db min	N/A 12.0079 in305.000 mm
Db min	N/A 15.2362 in387.000 mm
Db max	N/A 15.9055 in404.000 mm
ras max	N/A 0.1181 in3 mm