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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

2600 rpm

Limiting Speed - Grease

2200 rpm

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

224000 lbf995000 N995.00 kN

Dynamic Load Rating

127000 lbf565000 N565.00 kN

Enclosure

Open

Weight

37.258 lb16.9 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

7.0866 in180.000 mm

D

11.0236 in280.000 mm

B

2.9134 in74 mm

C

2.9134 in74 mm

Ew

10.0394 in255.000 mm

r

0.0827 in2.100 mm

da min

7.5197 in191.000 mm

db min

7.7559 in197.000 mm

Db min

10.1181 in257.000 mm

Db max

10.5906 in269.000 mm

ras max

0.0787 in2 mm