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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 4800 RPM

Limiting Speed - Grease

N/A 4000 RPM

Taper

N/A 1:12

Precision

N/A ISO Class 0

Configuration

N/A Two

Oil Hole

N/A w/o Oil Hole

Radial Internal Clearance

N/A CN

Static Load Rating

N/A 57500 lbf256000 N256.00 kN

Dynamic Load Rating

N/A 34500 lbf153000 N153.00 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 NN - Dimensions

d

N/A 3.9370 in100.000 mm

D

N/A 5.9055 in150.000 mm

B

N/A 1.4567 in37.000 mm

C

N/A 1.4567 in37.000 mm

Ew

N/A 5.3937 in137.000 mm

r

N/A 0.0591 in1.500 mm

da min

N/A 4.2520 in108.000 mm

db min

N/A 4.3701 in111.000 mm

Da max

N/A 5.4724 in139.000 mm

Db min

N/A 5.4724 in139.000 mm

Db max

N/A 5.5906 in142.000 mm

ras max

N/A 0.0591 in1.500 mm