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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

N/A Cylindrical Roller Bearing

Bore Type

N/A Cylindrical

Material

N/A Hardened Alloy Steel

Cage Material

N/A High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

N/A 3600 rpm

Limiting Speed - Grease

N/A 3100 rpm

Precision

N/A ISO Class 4

Configuration

N/A Two

Oil Hole

N/A w/o Oil Hole

Radial Internal Clearance

N/A C2NA

Static Load Rating

N/A 107000 lbf475000 N475.00 kN

Dynamic Load Rating

N/A 64000 lbf284000 N284.00 kN

Enclosure

N/A Open

Operating Temperature Range

N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

N/A 5.1181 in130 mm

D

N/A 7.874 in200.000 mm

B

N/A 2.0472 in52 mm

C

N/A 2.0472 in52 mm

Ew

N/A 7.1654 in182.000 mm

r

N/A 0.0787 in2.000 mm

da min

N/A 5.4724 in139.000 mm

db min

N/A 5.6299 in143.000 mm

Db min

N/A 7.2047 in183.000 mm

Db max

N/A 7.5197 in191.000 mm

ras max

N/A 0.0787 in2 mm