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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 Tapered

Material

N/A Hardened Alloy Steel

Cage Material

N/A High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

N/A 1300 RPM

Limiting Speed - Grease

N/A 1100 RPM

Taper

N/A 1:12

Precision

N/A ISO Class 0

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 710000 lbf3150000 N3150.00 kN

Dynamic Load Rating

N/A 286000 lbf1270000 N1270.00 kN

Enclosure

N/A Open

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 13.3858 in340.000 mm

D

N/A 18.1102 in460.000 mm

B

N/A 4.6457 in118.000 mm

C

N/A 4.6457 in118.000 mm

Fw

N/A 14.9213 in379.000 mm

r

N/A 0.1181 in3.000 mm

da min

N/A 13.8976 in353.000 mm

db min

N/A 14.2913 in363.000 mm

Da max

N/A 17.5984 in447.000 mm

ras max

N/A 0.0984 in2.500 mm