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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

Cylindrical Roller Bearing

Bore Type

Tapered

Material

Hardened Alloy Steel

Cage Material

High Strength, 2 piece, Machined Brass

Taper

1:12

Precision

Special Precision

Configuration

Two

Oil Hole

w/ Oil Hole

Radial Internal Clearance

C0NA

Static Load Rating

71000 lbf315000 N315.00 kN

Dynamic Load Rating

38000 lbf169000 N169.00 kN

Enclosure

Open

Weight

5.939 lb2.694 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

5.1181 in130 mm

D

7.0866 in180 mm

B

1.4567 in37 mm

C

1.4567 in37 mm

Ew

6.6142 in168.000 mm

r

0.0591 in1.500 mm

da min

5.4331 in138.000 mm

ras max

0.0591 in1.5 mm