NNU4948 KOYO Double-row cylindrical roller bearings
Brand Name:KOYO
Model Number:NNU4948
Series:HH224300
Cone Part Number:HH224349
Cup Part Number:HH224310
Design Units:Imperial
Bearing Weight:9.8 Kg
Cage Type:Stamped Steel
d:114.976 mm
D:212.725 mm
PDF NNU4948

Product Details

SeriesHH224300
Cone Part NumberHH224349
Cup Part NumberHH224310
Design UnitsImperial
Bearing Weight9.8 Kg
Cage TypeStamped Steel
d114.976 mm
D212.725 mm
B - Cone Width66.675 mm
C - Cup Width53.975 mm
B66.675 mm
R - Cone Backface To Clear Radius17.110 mm
r - Cup Backface To Clear Radius23.30 mm
da - Cone Frontface Backing Diameter131.06 mm
db - Cone Backface Backing Diameter144.02 mm
Da - Cup Frontface Backing Diameter201.70 mm
Db - Cup Backface Backing Diameter192.02 mm
Ab - Cage-Cone Frontface Clearance3.8 mm
Aa - Cage-Cone Backface Clearance4.1 mm
a - Effective Center Location3-18.8 mm
C90 - Dynamic Radial Rating (90 million revolutions)439600 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5153000 lbf
C0 - Static Radial Rating204000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)622100 lbf
K - Factor71.79
e - ISO Factor80.33
Y - ISO Factor91.84
G1 - Heat Generation Factor (Roller-Raceway)367
G2 - Heat Generation Factor (Rib-Roller End)47.8
Cg - Geometry Factor0.118
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Company Profile

TIMKEN BEARING MFG.CORP
Phone 409-782-6227
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