Item # MR8811248+MI-728848, Machined-Ring Needle Roller Bearing w/ Inner Ring - MR+MI 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 2900 RPM
Limiting Speed - Grease	N/A 1900.0 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 77500 lbf345000 N345.00 kN
Dynamic Load Rating	N/A 77500 lbf345000 N345.00 kN
Weight	N/A 16.006 lb7.260 kg
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Machined-Ring Needle Roller Bearing w/ Inner Ring - MR+MI Series - Dimensions
d	N/A 4.5000 in114.300 mm
D	N/A 7.0000 in177.800 mm
F	N/A 5.5000 in139.700 mm
C	N/A 3.0000 in76.200 mm
B	N/A 3.0150 in76.580 mm
r	N/A 0.0984 in2.500 mm
s	N/A 0.2756 in7.000 mm
da min	N/A 4.8622 in123.500 mm
Da max	N/A 6.6535 in169.000 mm
ras max	N/A 0.0984 in2.500 mm