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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

Cylindrical Roller Bearing

Bore Type

Round

Material

Hardened Alloy Steel

Cage Type

None

Cage Material

None

Limiting Speed - Grease

1300 RPM

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

73000 lbf325000 N325.00 kN

Dynamic Load Rating

44500 lbf197000 N197.00 kN

Enclosure

Double Shielded

Weight

4.343 lb1.970 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

2.9528 in75.000 mm

D

4.5276 in115.000 mm

B

2.1260 in54.000 mm

C

2.0866 in53.000 mm

D1

4.3819 in111.300 mm

D2

4.7047 in119.500 mm

f

0.0984 in2.500 mm

p

1.5551 in39.500 mm

J

3.5433 in90.000 mm

Cf

1.6535 in42.000 mm

Cf1

1.6535 in42.000 mm

S

0.2165 in5.500 mm

E1

5.3150 in135.000 mm

t

0.0394 in1.000 mm

Angle of Chamfer

30 º

r

0.0394 in1.000 mm

da min

3.1496 in80.000 mm