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

Taper

 1:12

Precision

 ISO Class 4

Configuration

 Two

Oil Hole

 w/ Oil Hole

Radial Internal Clearance

 C9NA

Static Load Rating

 315000 lbf1410000 N1410.00 kN

Dynamic Load Rating

 137000 lbf610000 N610.00 kN

Enclosure

 Open

Operating Temperature Range

 -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

 9.4488 in240.000 mm

D

 12.5984 in320.000 mm

B

 3.1496 in80 mm

C

 3.1496 in80 mm

Ew

 11.8504 in301.000 mm

r

 0.0827 in2.100 mm

da min

 9.8819 in251.000 mm

db min

 10.1575 in258.000 mm

Da max

 11.9685 in304.000 mm

Db min

 11.9685 in304.000 mm

Db max

 12.1654 in309.000 mm

ras max

 0.0787 in2 mm