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

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 1400 rpm

Limiting Speed - Grease

N/A 1200 rpm

Precision

N/A ISO Class 0

Configuration

N/A Two

Tolerance

N/A ISO Class 0 (RBEC 1)

Oil Hole

N/A w/o Oil Hole

Radial Internal Clearance

N/A CN

Static Load Rating

N/A 670000 lbf2970000 N2970.00 kN

Dynamic Load Rating

N/A 279000 lbf1240000 N1240.00 kN

Enclosure

N/A Open

Weight

N/A 113.317 lb51.400 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 NNU - Dimensions

d

N/A 12.5984 in320.000 mm

D

N/A 17.3228 in440.000 mm

B

N/A 4.6457 in118 mm

C

N/A 4.6457 in118 mm

Fw

N/A 14.1339 in359.000 mm

r

N/A 0.1181 in3.000 mm

da min

N/A 13.1102 in333.000 mm

db min

N/A 13.5039 in343.000 mm

Da max

N/A 16.8110 in427.000 mm

Db min

N/A 16.2992 in414.000 mm

Db max

N/A 16.8110 in427.000 mm

ras max

N/A 0.0984 in2.5 mm