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

 2900 rpm

Limiting Speed - Grease

 2500 rpm

Precision

 ISO Class 0

Configuration

 Two

Tolerance

 ISO Class 0 (RBEC 1)

Oil Hole

 w/o Oil Hole

Radial Internal Clearance

 CN

Static Load Rating

 172000 lbf765000 N765.00 kN

Dynamic Load Rating

 81000 lbf360000 N360.00 kN

Enclosure

 Open

Weight

 15.146 lb6.870 kg

Operating Temperature Range

 -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

 6.6929 in170.000 mm

D

 9.0551 in230.000 mm

B

 2.3622 in60 mm

C

 2.3622 in60 mm

Fw

 7.4213 in188.500 mm

r

 0.0787 in2.000 mm

da min

 7.0472 in179.000 mm

db min

 7.2441 in184.000 mm

Da max

 8.7008 in221.000 mm

Db min

 8.6024 in218.500 mm

Db max

 8.7008 in221.000 mm

ras max

 0.0787 in2 mm