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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 Tapered

Material

 N/A Hardened Alloy Steel

Cage Material

 N/A High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

 N/A 1800 RPM

Limiting Speed - Grease

 N/A 1600 RPM

Taper

 N/A 1:12

Precision

 N/A ISO Class 5

Tolerance

 N/A ISO Class 0 (RBEC 1)

Oil Hole

 N/A w/ Oil Hole

Radial Internal Clearance

 N/A C1NA

Static Load Rating

 N/A 465000 lbf2070000 N2070.00 kN

Dynamic Load Rating

 N/A 202000 lbf900000 N900.00 kN

Enclosure

 N/A Open

Weight

 N/A 62.391 lb28.300 kg

Operating Temperature Range

 N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NNU - Dimensions

d

 N/A 10.2362 in260.000 mm

D

 N/A 14.1732 in360.000 mm

B

 N/A 3.9370 in100.000 mm

C

 N/A 3.9370 in100.000 mm

Fw

 N/A 11.4961 in292.000 mm

r

 N/A 0.0827 in2.100 mm

da min

 N/A 10.6693 in271.000 mm

db min

 N/A 10.9843 in279.000 mm

Da max

 N/A 13.7402 in349.000 mm

Db min

 N/A 13.3465 in339.000 mm

Db max

 N/A 13.7402 in349.000 mm

ras max

 N/A 0.0787 in2.000 mm