KOYO M-9121 Needle Roller Bearings - Wnl Trading Corporation

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KOYO M-9121 Needle Roller Bearings Specifications

Series:219000
Cone Part Number:EE219065
Cup Part Number:219117
Design Units:Imperial
Bearing Weight:23.8 Kg
Cage Type:Stamped Steel
d:165.1 mm
D:298.450 mm
B - Cone Width:82.550 mm
C - Cup Width:63.500 mm
B:82.550 mm
R - Cone Backface To Clear Radius1:6.35 mm
r - Cup Backface To Clear Radius2:6.35 mm
da - Cone Frontface Backing Diameter:184.91 mm
db - Cone Backface Backing Diameter:196.09 mm
Da - Cup Frontface Backing Diameter:282.20 mm
Db - Cup Backface Backing Diameter:268.99 mm
Ab - Cage-Cone Frontface Clearance:1.5 mm
Aa - Cage-Cone Backface Clearance:9.4 mm
a - Effective Center Location3:-15.2 mm
C90 - Dynamic Radial Rating (90 million revolutions)4:54000 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5:208000 lbf
C0 - Static Radial Rating:341000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6:34900 lbf
K - Factor7:1.55
e - ISO Factor8:0.38
Y - ISO Factor9:1.59
G1 - Heat Generation Factor (Roller-Raceway):841
G2 - Heat Generation Factor (Rib-Roller End):94.9
Cg - Geometry Factor:0.129

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