180FC12884 KOYO Four-row cylindrical roller bearings
Brand Name:KOYO
Model Number:180FC12884
Series:HM259000
Cone Part Number:HM259048
Cup Part Number:HM259010
Design Units:Imperial
Bearing Weight:40.60 Kg
Cage Type:Stamped Steel
d:317.500 mm
D:447.675 mm

Product Details

SeriesHM259000
Cone Part NumberHM259048
Cup Part NumberHM259010
Design UnitsImperial
Bearing Weight40.60 Kg
Cage TypeStamped Steel
d317.500 mm
D447.675 mm
B - Cone Width85.725 mm
C - Cup Width68.263 mm
B85.725 mm
R - Cone Backface To Clear Radius13.560 mm
r - Cup Backface To Clear Radius23.30 mm
da - Cone Frontface Backing Diameter337.06 mm
db - Cone Backface Backing Diameter341.12 mm
Da - Cup Frontface Backing Diameter427.99 mm
Db - Cup Backface Backing Diameter418.08 mm
Ab - Cage-Cone Frontface Clearance5.1 mm
Aa - Cage-Cone Backface Clearance5.3 mm
a - Effective Center Location3-4.8 mm
C90 - Dynamic Radial Rating (90 million revolutions)498500 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5380000 lbf
C0 - Static Radial Rating628000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)656500 lbf
K - Factor71.74
e - ISO Factor80.33
Y - ISO Factor91.79
G1 - Heat Generation Factor (Roller-Raceway)2710
G2 - Heat Generation Factor (Rib-Roller End)281
Cg - Geometry Factor0.181
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Company Profile

TIMKEN BEARING MFG.CORP
Phone 409-782-6227
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