Item # NAO-45X72X40ZW, Double Row Machined-Ring Needle Roller Bearings - Separable Type w/ Inner Ring On NTN Bearing Corp. of America

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Technical Specifications

Type	N/A Machined-Ring Needle Roller Bearing - Separable Type
Bore Type	N/A Round
Material	N/A High Carbon Chrome Steel
Cage Material	N/A Steel
Limiting Speed - Oil	N/A 7500 RPM
Limiting Speed - Grease	N/A 4800 RPM
Precision	N/A ISO Class 0
Configuration	N/A Two
Enclosure	N/A Open
Bearing Design	N/A w/ Inner Ring
Oil Hole	N/A w/ Oil Hole
Radial Internal Clearance	N/A CN
Static Load Rating	N/A 31500 lbf140000 N140.00 kN
Dynamic Load Rating	N/A 15000 lbf66500 N66.50 kN
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Open Image Double Row Machined-Ring Needle Roller Bearings - Separable Type w/ Inner Ring - Dimensions
d	N/A 1.7717 in45.000 mm
D	N/A 2.8346 in72.000 mm
F	N/A 2.1654 in55.000 mm
E	N/A 2.4803 in63.000 mm
C	N/A 1.5748 in40.000 mm
r	N/A 0.0236 in0.600 mm
da min	N/A 1.9291 in49.000 mm
Da max	N/A 2.6772 in68.000 mm
db min	N/A 2.4567 in62.400 mm
Db max	N/A 2.1969 in55.800 mm
ras max	N/A 0.0236 in0.600 mm