Item # NA4988, 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 800 RPM
Limiting Speed - Grease	N/A 550 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 1030000 lbf4600000 N4600.00 kN
Dynamic Load Rating	N/A 395000 lbf1750000 N1750.00 kN
Weight	N/A 271.168 lb123.000 kg
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Open Image Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series - Dimensions
d	N/A 1.5748 in40.000 mm
D	N/A 23.6220 in600.000 mm
F	N/A 19.2913 in490.000 mm
B	N/A 6.2992 in160.000 mm
r	N/A 0.1575 in4.000 mm
s	N/A 0.0984 in2.500 mm
da min	N/A 17.9528 in456.000 mm
Da max	N/A 22.9921 in584.000 mm
ras max	N/A 0.1181 in3 mm