Item # NA498, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series On NTN Bearing Corp. of America

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Technical Specifications

Type	N/A Needle Roller Bearing
Bore Type	N/A Round
Material	N/A High Carbon Chrome Steel
Cage Material	N/A Steel
Limiting Speed - Oil	N/A 28000 RPM
Limiting Speed - Grease	N/A 19000 RPM
Precision	N/A ISO Class 0
Configuration	N/A One
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 890 lbf3950 N3.95 kN
Dynamic Load Rating	N/A 965 lbf4300 N4.30 kN
Weight	N/A 0.035 lb0.016 kg
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Open Image Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series - Dimensions
d	N/A 0.3150 in8.000 mm
D	N/A 0.7480 in19.000 mm
F	N/A 0.3937 in10.000 mm
B	N/A 0.4331 in11.000 mm
r	N/A 0.0059 in0.150 mm
da min	N/A 0.3937 in10 mm
Da max	N/A 0.4724 in12.000 mm
ras max	N/A 0.0059 in0.150 mm