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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 4200 RPM

Limiting Speed - Grease

N/A 3600 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 81000 lbf360000 N360.00 kN

Dynamic Load Rating

N/A 41000 lbf183000 N183.00 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 4.7244 in120.000 mm

D

N/A 6.4961 in165.000 mm

B

N/A 1.7717 in45.000 mm

C

N/A 1.7717 in45.000 mm

Ew

N/A 6.0827 in154.500 mm

r

N/A 0.0433 in1.100 mm

da min

N/A 4.9803 in126.500 mm

db min

N/A 5.1181 in130.000 mm

Db min

N/A 6.1614 in156.500 mm

Db max

N/A 6.2402 in158.500 mm

ras max

N/A 0.0394 in1.000 mm