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

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Ordering Options

 N/A Contact NTN Customer Relations

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 1500 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 630000 lbf2800000 N2800.00 kN

Dynamic Load Rating

 N/A 270000 lbf1200000 N1200.00 kN

Enclosure

 N/A Open

Weight

 N/A 102.294 lb46.400 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 NN - Dimensions

d

 N/A 11.8110 in300.000 mm

D

 N/A 16.5354 in420.000 mm

B

 N/A 4.6457 in118.000 mm

C

 N/A 4.6457 in118.000 mm

Ew

 N/A 15.3937 in391.000 mm

r

 N/A 0.1181 in3.000 mm

da min

 N/A 12.3228 in313.000 mm

db min

 N/A 12.7165 in323.000 mm

Db min

 N/A 15.5118 in394.000 mm

Db max

 N/A 16.0236 in407.000 mm

ras max

 N/A 0.0984 in2.5 mm