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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 1700 RPM

Limiting Speed - Grease

 N/A 1500 RPM

Taper

 N/A 1:12

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 445000 lbf1990000 N1990.00 kN

Dynamic Load Rating

 N/A 238000 lbf1060000 N1060.00 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/ Tapered Bore - Type NN - Dimensions

d

 N/A 10.2362 in260.000 mm

D

 N/A 15.7480 in400.000 mm

B

 N/A 4.0945 in104.000 mm

C

 N/A 4.0945 in104.000 mm

Ew

 N/A 14.3307 in364.000 mm

r

 N/A 0.1575 in4.000 mm

da min

 N/A 10.8661 in276.000 mm

db min

 N/A 11.2205 in285.000 mm

Da max

 N/A 14.4488 in367.000 mm

Db min

 N/A 14.4488 in367.000 mm

Db max

 N/A 15.1181 in384.000 mm

ras max

 N/A 0.1181 in3 mm