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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

1400 RPM

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

64000 lbf285000 N285.00 kN

Dynamic Load Rating

38500 lbf171000 N171.00 kN

Enclosure

Double Shielded

Weight

4.167 lb1.890 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

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

d

2.7559 in70.000 mm

D

4.3307 in110.000 mm

B

2.1260 in54.000 mm

C

2.0866 in53.000 mm

D1

4.1850 in106.300 mm

D2

4.5079 in114.500 mm

f

0.0984 in2.500 mm

p

1.5551 in39.500 mm

J

3.3268 in84.500 mm

Cf

1.6535 in42.000 mm

Cf1

1.6535 in42.000 mm

S

0.2165 in5.500 mm

E1

5.1181 in130.000 mm

t

0.0394 in1.000 mm

Angle of Chamfer

30 º

r

0.0394 in1.000 mm

da min

2.9528 in75.000 mm