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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

Taper

 N/A 1:12

Precision

 N/A Special Precision

Configuration

 N/A Two

Oil Hole

 N/A w/ Oil Hole

Radial Internal Clearance

 N/A C0NA

Static Load Rating

 N/A 71000 lbf315000 N315.00 kN

Dynamic Load Rating

 N/A 38000 lbf169000 N169.00 kN

Enclosure

 N/A Open

Weight

 N/A 5.939 lb2.694 kg

Operating Temperature Range

 N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

 N/A 5.1181 in130.000 mm

D

 N/A 7.0866 in180.000 mm

B

 N/A 1.4567 in37.000 mm

C

 N/A 1.4567 in37.000 mm

Ew

 N/A 6.6142 in168.000 mm

r

 N/A 0.0591 in1.500 mm

da min

 N/A 5.4331 in138.000 mm

ras max

 N/A 0.0591 in1.5 mm