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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 17000 RPM

Limiting Speed - Grease

N/A 14000 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 6750 lbf30000 N30.00 kN

Dynamic Load Rating

N/A 5800 lbf25800 N25.80 kN

Enclosure

N/A Open

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 0.9843 in25.000 mm

D

N/A 1.8504 in47.000 mm

B

N/A 0.6299 in16.000 mm

C

N/A 0.6299 in16.000 mm

Ew

N/A 1.6260 in41.300 mm

r

N/A 0.0236 in0.600 mm

da min

N/A 1.1417 in29.000 mm

db min

N/A 1.1811 in30.000 mm

Db min

N/A 1.6535 in42.000 mm

Db max

N/A 1.6929 in43.000 mm

ras max

N/A 0.0236 in0.6 mm