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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

N/A Cylindrical Roller Bearing

Bore Type

N/A Cylindrical

Material

N/A Hardened Alloy Steel

Cage Material

N/A High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

N/A 11000 RPM

Limiting Speed - Grease

N/A 9700 RPM

Precision

N/A ISO Class 4

Configuration

N/A Two

Oil Hole

N/A w/o Oil Hole

Radial Internal Clearance

N/A C1NA

Static Load Rating

N/A 12500 lbf55500 N55.50 kN

Dynamic Load Rating

N/A 9800 lbf43500 N43.50 kN

Enclosure

N/A Open

Weight

N/A 0.677 lb0.307 kg

Operating Temperature Range

N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN - Dimensions

d

N/A 1.5748 in40.000 mm

D

N/A 2.6772 in68.000 mm

B

N/A 0.8268 in21.000 mm

C

N/A 0.8268 in21.000 mm

Ew

N/A 2.4016 in61.000 mm

r

N/A 0.0394 in1.000 mm

da min

N/A 1.7717 in45 mm

db min

N/A 1.8504 in47.000 mm

Db min

N/A 2.4409 in62.000 mm

Db max

N/A 2.4803 in63.000 mm

ras max

N/A 0.0394 in1 mm