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

770 rpm

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

225000 lbf1000000 N1000.00 kN

Dynamic Load Rating

120000 lbf535000 N535.00 kN

Enclosure

Double Shielded

Weight

23.369 lb10.6 kg

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

5.1181 in130 mm

D

7.874 in200.000 mm

B

3.7402 in95 mm

C

3.7008 in94 mm

D1

7.6039 in193.140 mm

D2

8.1890 in208.000 mm

f

0.1181 in3.000 mm

p

2.9134 in74.000 mm

J

6.2205 in158.000 mm

Cf

3.0315 in77.000 mm

Cf1

3.0315 in77.000 mm

S

0.3346 in8.500 mm

E1

9.0551 in230.000 mm

t

0.0709 in1.800 mm

Angle of Chamfer

30 º

r

0.0591 in1.500 mm

da min

5.3740 in136.500 mm