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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

630 RPM

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

315000 lbf1390000 N1390.00 kN

Dynamic Load Rating

162000 lbf720000 N720.00 kN

Enclosure

Double Shielded

Weight

37.038 lb16.800 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

6.2992 in160.000 mm

D

9.4488 in240.000 mm

B

4.2913 in109.000 mm

C

4.2520 in108.000 mm

D2

9.7638 in248.000 mm

f

0.1181 in3.000 mm

p

3.3858 in86.000 mm

J

7.5197 in191.000 mm

Cf

3.5039 in89.000 mm

Cf1

3.5039 in89.000 mm

S

0.3740 in9.500 mm

E1

10.8268 in275.000 mm

t

0.0787 in2.000 mm

Angle of Chamfer

30 º

r

0.0787 in2.000 mm

da min

6.5748 in167.000 mm