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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 Nylon

Limiting Speed - Oil

N/A 5300 RPM

Limiting Speed - Grease

N/A 4500 RPM

Taper

N/A 1:12

Precision

N/A Special Precision

Configuration

N/A Two

Oil Hole

N/A w/o Oil Hole

Radial Internal Clearance

N/A C1NA

Static Load Rating

N/A 51500 lbf228000 N228.00 kN

Dynamic Load Rating

N/A 32000 lbf143000 N143.00 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 3.5433 in90.000 mm

D

N/A 5.5118 in140.000 mm

B

N/A 1.4567 in37.000 mm

C

N/A 1.4567 in37.000 mm

Ew

N/A 5.0000 in127.000 mm

r

N/A 0.0591 in1.500 mm

da min

N/A 3.8583 in98.000 mm

db min

N/A 3.9764 in101.000 mm

Da max

N/A 5.0787 in129.000 mm

Db min

N/A 5.0787 in129.000 mm

Db max

N/A 5.1969 in132.000 mm

ras max

N/A 0.0591 in1.500 mm