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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 5900 RPM

Limiting Speed - Grease

N/A 5100 RPM

Taper

N/A 1:12

Precision

N/A ISO Class 4

Configuration

N/A Two

Oil Hole

N/A w/ Oil Hole

Radial Internal Clearance

N/A C1NA

Static Load Rating

N/A 40000 lbf179000 N179.00 kN

Dynamic Load Rating

N/A 26100 lbf116000 N116.00 kN

Enclosure

N/A Open

Weight

N/A 3.217 lb1.459 kg

Operating Temperature Range

N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Double Row Cylindrical Roller Bearing w/ Tapered Bore & Oil Hole - Type NN - Dimensions

d

N/A 3.1496 in80.000 mm

D

N/A 4.9213 in125.000 mm

B

N/A 1.3386 in34.000 mm

C

N/A 1.3386 in34.000 mm

Ew

N/A 4.4488 in113.000 mm

r

N/A 0.0433 in1.100 mm

da min

N/A 3.7992 in96.500 mm

db min

N/A 3.5236 in89.500 mm

Da max

N/A 4.4882 in114.000 mm

Db min

N/A 4.4882 in114.000 mm

Db max

N/A 4.6654 in118.500 mm

ras max

N/A 0.0394 in1.000 mm