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

 1100 rpm

Limiting Speed - Grease

 940 rpm

Taper

 1:12

Precision

 ISO Class 0

Configuration

 Two

Oil Hole

 w/o Oil Hole

Radial Internal Clearance

 CN

Static Load Rating

 775000 lbf3450000 N3450.00 kN

Dynamic Load Rating

 380000 lbf1690000 N1690.00 kN

Enclosure

 Open

Operating Temperature Range

 -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

 14.9606 in380.000 mm

D

 22.0472 in560.000 mm

B

 5.315 in135 mm

C

 5.3150 in135.000 mm

Ew

 20.1575 in512.000 mm

r

 0.1969 in5.000 mm

da min

 15.7480 in400.000 mm

db min

 16.1811 in411.000 mm

Da max

 20.3150 in516.000 mm

Db min

 20.3150 in516.000 mm

Db max

 21.2598 in540.000 mm

ras max

 0.1575 in4 mm