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
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Product Details

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
B - Cone Width 66.675 mm
C - Cup Width 53.975 mm
B 66.675 mm
R - Cone Backface To Clear Radius1 7.110 mm
r - Cup Backface To Clear Radius2 3.30 mm
da - Cone Frontface Backing Diameter 131.06 mm
db - Cone Backface Backing Diameter 144.02 mm
Da - Cup Frontface Backing Diameter 201.70 mm
Db - Cup Backface Backing Diameter 192.02 mm
Ab - Cage-Cone Frontface Clearance 3.8 mm
Aa - Cage-Cone Backface Clearance 4.1 mm
a - Effective Center Location3 -18.8 mm
C90 - Dynamic Radial Rating (90 million revolutions)4 39600 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 153000 lbf
C0 - Static Radial Rating 204000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 22100 lbf
K - Factor7 1.79
e - ISO Factor8 0.33
Y - ISO Factor9 1.84
G1 - Heat Generation Factor (Roller-Raceway) 367
G2 - Heat Generation Factor (Rib-Roller End) 47.8
Cg - Geometry Factor 0.118
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Phone 409-782-6227
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