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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 2200 RPM

Limiting Speed - Grease

N/A 1900 RPM

Precision

N/A ISO Class 0

Configuration

N/A Two

Tolerance

N/A ISO Class 0 (RBEC 1)

Oil Hole

N/A w/o Oil Hole

Radial Internal Clearance

N/A CN

Static Load Rating

N/A 292000 lbf1300000 N1300.00 kN

Dynamic Load Rating

N/A 132000 lbf585000 N585.00 kN

Enclosure

N/A Open

Weight

N/A 37.258 lb16.900 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 NNU - Dimensions

d

N/A 8.6614 in220.000 mm

D

N/A 11.8110 in300.000 mm

B

N/A 3.1496 in80.000 mm

C

N/A 3.1496 in80.000 mm

Fw

N/A 9.6457 in245.000 mm

r

N/A 0.0827 in2.100 mm

da min

N/A 9.0945 in231 mm

db min

N/A 9.3701 in238.000 mm

Da max

N/A 11.378 in289 mm

Db min

N/A 11.1811 in284.000 mm

Db max

N/A 11.3780 in289.000 mm

ras max

N/A 0.0787 in2.000 mm