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

230 rpm

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

24700000 lbf110000000 N110000.00 kN

Dynamic Load Rating

1010000 lbf4500000 N4500.00 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

17.3228 in440.000 mm

D

25.5906 in650.000 mm

B

11.0236 in280 mm

C

10.9449 in278.000 mm

D2

26.6142 in676.000 mm

f

0.4724 in12.000 mm

p

7.7953 in198.000 mm

J

20.3937 in518.000 mm

Cf

8.2677 in210.000 mm

Cf1

8.2677 in210.000 mm

S

1.3386 in34.000 mm

E1

28.5433 in725.000 mm

t

0.1772 in4.500 mm

Angle of Chamfer

30 º

r

0.1575 in4.000 mm

da min

17.9528 in456.000 mm