7221B KOYO Single-row, matched pair angular contact ball bearings

Brand Name:KOYO
Model Number:7221B
Series:234000
Cone Part Number:EE234156
Cup Part Number:234215W
Design Units:Imperial
Bearing Weight:44.200 Kg
Cage Type:Stamped Steel
d:396.875 mm
D:546.100 mm
PDF 7221B

Product Details

Series234000
Cone Part NumberEE234156
Cup Part Number234215W
Design UnitsImperial
Bearing Weight44.200 Kg
Cage TypeStamped Steel
d396.875 mm
D546.100 mm
B - Cone Width61.120 mm
C - Cup Width55.563 mm
B76.203 mm
R - Cone Backface To Clear Radius16.35 mm
r - Cup Backface To Clear Radius26.35 mm
da - Cone Frontface Backing Diameter418.08 mm
db - Cone Backface Backing Diameter427.99 mm
Da - Cup Frontface Backing Diameter515.87 mm
Db - Cup Backface Backing Diameter503.94 mm
Ab - Cage-Cone Frontface Clearance7.9 mm
Aa - Cage-Cone Backface Clearance12.7 mm
a - Effective Center Location335.6 mm
C90 - Dynamic Radial Rating (90 million revolutions)463300 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5244000 lbf
C0 - Static Radial Rating451000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)651600 lbf
K - Factor71.23
e - ISO Factor80.48
Y - ISO Factor91.26
G1 - Heat Generation Factor (Roller-Raceway)2782.9
G2 - Heat Generation Factor (Rib-Roller End)448.6
Cg - Geometry Factor0.202
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Company Profile

Phone 753-298-7732
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