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

Round

Material

Hardened Alloy Steel

Cage Type

None

Cage Material

None

Limiting Speed - Grease

280 rpm

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

1870000 lbf8300000 N8300.00 kN

Dynamic Load Rating

845000 lbf3750000 N3750.00 kN

Enclosure

Double Shielded

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Double Row Cylindrical Roller Bearing for Sheaves w/ Snap Rings - Dimensions

d

14.1732 in360.000 mm

D

21.2598 in540.000 mm

B

9.5669 in243 mm

C

9.4882 in241.000 mm

D2

22.2047 in564.000 mm

f

0.3937 in10.000 mm

p

7.2441 in184.000 mm

J

16.5748 in421.000 mm

Cf

7.6378 in194.000 mm

Cf1

7.6378 in194.000 mm

S

0.9252 in23.500 mm

E1

23.6220 in600.000 mm

t

0.1378 in3.500 mm

Angle of Chamfer

30 º

r

0.1181 in3.000 mm

da min

14.6457 in372.000 mm