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    The rollers in the NN type bearing are guided by the ribs of the inner ring.
Unit of Measure

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Ordering Options

 N/A Contact NTN Customer Relations

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 2200 RPM

Limiting Speed - Grease

 N/A 1900 RPM

Precision

 N/A ISO Class 0

Configuration

 N/A Two

Oil Hole

 N/A w/o Oil Hole

Radial Internal Clearance

 N/A CN

Static Load Rating

 N/A 292000 lbf1300000 N1300.00 kN

Dynamic Load Rating

 N/A 132000 lbf585000 N585.00 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 8.6614 in220.000 mm

D

 N/A 11.8110 in300.000 mm

B

 N/A 3.1496 in80.000 mm

C

 N/A 3.1496 in80.000 mm

Ew

 N/A 11.0630 in281.000 mm

r

 N/A 0.0827 in2.100 mm

da min

 N/A 9.0945 in231 mm

db min

 N/A 9.3701 in238.000 mm

Db min

 N/A 11.1811 in284.000 mm

Db max

 N/A 11.3780 in289.000 mm

ras max

 N/A 0.0787 in2 mm