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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 1900 RPM

Limiting Speed - Grease

 N/A 1600 RPM

Taper

 N/A 1:12

Precision

 N/A ISO Class 4

Configuration

 N/A Two

Oil Hole

 N/A w/o Oil Hole

Radial Internal Clearance

 N/A C9NA

Static Load Rating

 N/A 360000 lbf1600000 N1600.00 kN

Dynamic Load Rating

 N/A 192000 lbf855000 N855.00 kN

Enclosure

 N/A Open

Weight

 N/A 72.017 lb32.667 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 9.4488 in240.000 mm

D

 N/A 14.1732 in360.000 mm

B

 N/A 3.6220 in92.000 mm

C

 N/A 3.6220 in92.000 mm

Ew

 N/A 12.9921 in330.000 mm

r

 N/A 0.1181 in3.000 mm

da min

 N/A 9.9606 in253.000 mm

db min

 N/A 10.2756 in261.000 mm

Da max

 N/A 13.1102 in333.000 mm

Db min

 N/A 13.1102 in333.000 mm

Db max

 N/A 13.6614 in347.000 mm

ras max

 N/A 0.0984 in2.500 mm