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

 Tapered

Material

 Hardened Alloy Steel

Cage Material

 High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

 4500 rpm

Limiting Speed - Grease

 3800 rpm

Taper

 1:12

Precision

 ISO Class 5

Configuration

 Two

Oil Hole

 w/o Oil Hole

Radial Internal Clearance

 C1NA

Static Load Rating

 72000 lbf320000 N320.00 kN

Dynamic Load Rating

 44500 lbf198000 N198.00 kN

Enclosure

 Open

Weight

 6.131 lb2.781 kg

Operating Temperature Range

 -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

 4.1339 in105.000 mm

D

 6.2992 in160 mm

B

 1.6142 in41 mm

C

 1.6142 in41 mm

Ew

 5.7480 in146.000 mm

r

 0.0787 in2.000 mm

da min

 4.4882 in114.000 mm

db min

 4.6063 in117.000 mm

Da max

 5.8268 in148.000 mm

Db min

 5.8268 in148.000 mm

Db max

 5.9449 in151.000 mm

ras max

 0.0787 in2 mm