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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

830 RPM

Precision

ISO Class 0

Configuration

Two

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

169000 lbf750000 N750.00 kN

Dynamic Load Rating

90000 lbf400000 N400.00 kN

Enclosure

Double Shielded

Weight

15.498 lb7.030 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

4.7244 in120.000 mm

D

7.0866 in180.000 mm

B

3.1496 in80.000 mm

C

3.1102 in79.000 mm

D1

6.8169 in173.150 mm

D2

7.4016 in188.000 mm

f

0.1181 in3.000 mm

p

2.4409 in62.000 mm

J

5.5709 in141.500 mm

Cf

2.5591 in65.000 mm

Cf1

2.5591 in65.000 mm

S

0.2756 in7.000 mm

E1

8.2677 in210.000 mm

t

0.0709 in1.800 mm

Angle of Chamfer

30 º

r

0.0591 in1.500 mm

da min

4.9803 in126.500 mm