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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

670 RPM

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

290000 lbf1290000 N1290.00 kN

Dynamic Load Rating

155000 lbf690000 N690.00 kN

Enclosure

Double Shielded

Weight

29.983 lb13.600 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

5.9055 in150.000 mm

D

8.8583 in225.000 mm

B

3.9370 in100.000 mm

C

3.8976 in99.000 mm

D2

9.1732 in233.000 mm

f

0.1181 in3.000 mm

p

3.0709 in78.000 mm

J

7.0079 in178.000 mm

Cf

3.1890 in81.000 mm

Cf1

3.1890 in81.000 mm

S

0.3543 in9.000 mm

E1

10.2362 in260.000 mm

t

0.0787 in2.000 mm

Angle of Chamfer

30 º

r

0.0591 in1.500 mm

da min

6.1811 in157.000 mm