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    The rollers in the NN type bearing are guided by the ribs of the inner ring.
Unit of Measure

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Technical Specifications

Type

 N/A Cylindrical Roller Bearing

Bore Type

 N/A Round

Material

 N/A Hardened Alloy Steel

Cage Type

 N/A None

Cage Material

 N/A None

Limiting Speed - Grease

 N/A 1300 RPM

Precision

 N/A ISO Class 0

Configuration

 N/A Two

Oil Hole

 N/A w/o Oil Hole

Radial Internal Clearance

 N/A CN

Static Load Rating

 N/A 73000 lbf325000 N325.00 kN

Dynamic Load Rating

 N/A 44500 lbf197000 N197.00 kN

Enclosure

 N/A Double Shielded

Weight

 N/A 4.343 lb1.970 kg

Operating Temperature Range

 N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

 N/A 2.9528 in75.000 mm

D

 N/A 4.5276 in115.000 mm

B

 N/A 2.1260 in54.000 mm

C

 N/A 2.0866 in53.000 mm

D1

 N/A 4.3819 in111.300 mm

D2

 N/A 4.7047 in119.500 mm

f

 N/A 0.0984 in2.500 mm

p

 N/A 1.5551 in39.500 mm

J

 N/A 3.5433 in90.000 mm

Cf

 N/A 1.6535 in42.000 mm

Cf1

 N/A 1.6535 in42.000 mm

S

 N/A 0.2165 in5.500 mm

E1

 N/A 5.3150 in135.000 mm

t

 N/A 0.0394 in1.000 mm

Angle of Chamfer

 N/A 30 º

r

 N/A 0.0394 in1.000 mm

da min

 N/A 3.1496 in80.000 mm