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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

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 1300 rpm

Limiting Speed - Grease

N/A 1100 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 720000 lbf3200000 N3200.00 kN

Dynamic Load Rating

N/A 365000 lbf1620000 N1620.00 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 13.3858 in340.000 mm

D

N/A 20.4724 in520.000 mm

B

N/A 5.2362 in133 mm

C

N/A 5.2362 in133 mm

Ew

N/A 18.6220 in473.000 mm

r

N/A 0.1969 in5.000 mm

da min

N/A 14.1732 in360.000 mm

db min

N/A 14.6063 in371.000 mm

Da max

N/A 18.7795 in477.000 mm

Db min

N/A 18.7795 in477.000 mm

Db max

N/A 19.6850 in500.000 mm

ras max

N/A 0.1575 in4 mm