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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 7400 RPM

Limiting Speed - Grease

N/A 5400 RPM

Precision

N/A ISO Class 4

Configuration

N/A Two

Oil Hole

N/A w/o Oil Hole

Radial Internal Clearance

N/A C1NA

Static Load Rating

N/A 16300 lbf72500 N72.50 kN

Dynamic Load Rating

N/A 11900 lbf53000 N53.00 kN

Enclosure

N/A Open

Weight

N/A 0.933 lb0.423 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 1.9685 in50.000 mm

D

N/A 3.1496 in80.000 mm

B

N/A 0.9055 in23.000 mm

C

N/A 0.9055 in23.000 mm

Ew

N/A 2.8543 in72.500 mm

r

N/A 0.0394 in1.000 mm

da min

N/A 2.1654 in55.000 mm

db min

N/A 2.2441 in57.000 mm

Db min

N/A 2.9134 in74.000 mm

Db max

N/A 2.9528 in75.000 mm

ras max

N/A 0.0394 in1.000 mm