Bearing Distributors, an Applied Company
Bearing Distributors, an Applied Company
930 South Stadium Road
Columbia, SC 29201
Phone: (800) 934-2834
Fax: (803) 256-3824
Email: sales@ibearing.com
Website: www.bearingdistributors.com
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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

 Cylindrical Roller Bearing

Bore Type

 Cylindrical

Material

 Hardened Alloy Steel

Cage Material

 High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

 7400 rpm

Limiting Speed - Grease

 5400 rpm

Precision

 ISO Class 4

Configuration

 Two

Oil Hole

 w/o Oil Hole

Radial Internal Clearance

 C1NA

Static Load Rating

 16300 lbf72500 N72.50 kN

Dynamic Load Rating

 11900 lbf53000 N53.00 kN

Enclosure

 Open

Weight

 0.933 lb0.423 kg

Operating Temperature Range

 -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN - Dimensions

d

 1.9685 in50 mm

D

 3.1496 in80 mm

B

 0.9055 in23 mm

C

 0.9055 in23 mm

Ew

 2.8543 in72.500 mm

r

 0.0394 in1.000 mm

da min

 2.1654 in55.000 mm

db min

 2.2441 in57.000 mm

Db min

 2.9134 in74.000 mm

Db max

 2.9528 in75.000 mm

ras max

 0.0394 in1 mm