4R4426 NTN ROLL NECK BEARINGS for ROLLING MILL

Brand Name: NTN
Model Number: 4R4426
Series: M348400
Cone Part Number: M348448WS
Cup Part Number: M348410
Design Units: Imperial
Bearing Weight: 17.6 Kg
Cage Type: Stamped Steel
d: 247.650 mm
D: 346.075 mm
PDF 4R4426

Product Details

Series M348400
Cone Part Number M348448WS
Cup Part Number M348410
Design Units Imperial
Bearing Weight 17.6 Kg
Cage Type Stamped Steel
d 247.650 mm
D 346.075 mm
B - Cone Width 63.5 mm
C - Cup Width 50.800 mm
B 63.503 mm
R - Cone Backface To Clear Radius1 6.35 mm
r - Cup Backface To Clear Radius2 6.35 mm
da - Cone Frontface Backing Diameter 262.89 mm
db - Cone Backface Backing Diameter 273.05 mm
Da - Cup Frontface Backing Diameter 332.99 mm
Db - Cup Backface Backing Diameter 321.06 mm
Ab - Cage-Cone Frontface Clearance 4.8 mm
Aa - Cage-Cone Backface Clearance 3 mm
a - Effective Center Location3 -1.3 mm
C90 - Dynamic Radial Rating (90 million revolutions)4 49500 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 191000 lbf
C0 - Static Radial Rating 365000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 29100 lbf
K - Factor7 1.7
e - ISO Factor8 0.34
Y - ISO Factor9 1.75
G1 - Heat Generation Factor (Roller-Raceway) 1450.8
G2 - Heat Generation Factor (Rib-Roller End) 212.9
Cg - Geometry Factor 0.148
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Phone 753-298-7821
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