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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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Technical Specifications

Type

 N/A Cylindrical Roller Bearing

Bore Type

 N/A Tapered

Material

 N/A Hardened Alloy Steel

Cage Material

 N/A High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

 N/A 5600 RPM

Limiting Speed - Grease

 N/A 4800 RPM

Taper

 N/A 1:12

Precision

 N/A Special Precision

Configuration

 N/A Two

Oil Hole

 N/A w/o Oil Hole

Radial Internal Clearance

 N/A C1NA

Static Load Rating

 N/A 43500 lbf194000 N194.00 kN

Dynamic Load Rating

 N/A 27400 lbf122000 N122.00 kN

Enclosure

 N/A Open

Weight

 N/A 3.424 lb1.553 kg

Operating Temperature Range

 N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

 N/A 3.3465 in85.000 mm

D

 N/A 5.1181 in130.000 mm

B

 N/A 1.3386 in34.000 mm

C

 N/A 1.3386 in34.000 mm

Ew

 N/A 4.6457 in118.000 mm

r

 N/A 0.0433 in1.100 mm

da min

 N/A 3.6024 in91.500 mm

db min

 N/A 3.7205 in94.500 mm

Da max

 N/A 4.6850 in119.000 mm

Db min

 N/A 4.6850 in119.000 mm

Db max

 N/A 4.8622 in123.500 mm

ras max

 N/A 0.0394 in1.000 mm