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

1600 rpm

Limiting Speed - Grease

1300 rpm

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

470000 lbf2080000 N2080.00 kN

Dynamic Load Rating

243000 lbf1080000 N1080.00 kN

Enclosure

Open

Weight

112.656 lb51.100 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

11.0236 in280.000 mm

D

16.5354 in420.000 mm

B

4.1732 in106 mm

C

4.1732 in106 mm

Ew

15.1181 in384.000 mm

r

0.1575 in4.000 mm

da min

11.6535 in296.000 mm

db min

12.0079 in305.000 mm

Db min

15.2362 in387.000 mm

Db max

15.9055 in404.000 mm

ras max

0.1181 in3 mm