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

260 rpm

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

1970000 lbf8750000 N8750.00 kN

Dynamic Load Rating

855000 lbf3800000 N3800.00 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

14.9606 in380.000 mm

D

22.0472 in560.000 mm

B

9.5669 in243 mm

C

9.4882 in241.000 mm

D2

22.9921 in584.000 mm

f

0.3937 in10.000 mm

p

7.2441 in184.000 mm

J

17.4016 in442.000 mm

Cf

7.6378 in194.000 mm

Cf1

7.6378 in194.000 mm

S

0.9252 in23.500 mm

E1

24.4094 in620.000 mm

t

0.1378 in3.500 mm

Angle of Chamfer

30 º

r

0.1181 in3.000 mm

da min

15.4331 in392.000 mm