Item # NA4912R, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R 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 6000 RPM
Limiting Speed - Grease	N/A 4000 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 24300 lbf108000 N108.00 kN
Dynamic Load Rating	N/A 13800 lbf61500 N61.50 kN
Weight	N/A 0.941 lb0.427 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 - NA49.R, NA59, NA69R, NK.R+1R Series - Dimensions
d	N/A 2.3622 in60.000 mm
D	N/A 3.3465 in85.000 mm
F	N/A 2.6772 in68.000 mm
B	N/A 0.9843 in25.000 mm
r	N/A 0.0394 in1.000 mm
s	N/A 0.0591 in1.500 mm
da min	N/A 2.5591 in65.000 mm
Da max	N/A 3.1496 in80.000 mm
ras max	N/A 0.0394 in1.000 mm