7930B KOYO Single-row, matched pair angular contact ball bearings

Brand Name:KOYO
Model Number:7930B
Series:8500
Cone Part Number:8578
Cup Part Number:8522
Design Units:Imperial
Bearing Weight:11.5 Kg
Cage Type:Stamped Steel
d:241.300 mm
D:328.625 mm
PDF 7930B

Product Details

Series8500
Cone Part Number8578
Cup Part Number8522
Design UnitsImperial
Bearing Weight11.5 Kg
Cage TypeStamped Steel
d241.300 mm
D328.625 mm
B - Cone Width52.388 mm
C - Cup Width36.513 mm
B52.388 mm
R - Cone Backface To Clear Radius16.35 mm
r - Cup Backface To Clear Radius23.30 mm
da - Cone Frontface Backing Diameter252.98 mm
db - Cone Backface Backing Diameter263.91 mm
Da - Cup Frontface Backing Diameter314.96 mm
Db - Cup Backface Backing Diameter306.07 mm
Ab - Cage-Cone Frontface Clearance3.3 mm
Aa - Cage-Cone Backface Clearance6.1 mm
a - Effective Center Location37.6 mm
C90 - Dynamic Radial Rating (90 million revolutions)430700 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5119000 lbf
C0 - Static Radial Rating240000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)621400 lbf
K - Factor71.44
e - ISO Factor80.41
Y - ISO Factor91.48
G1 - Heat Generation Factor (Roller-Raceway)1050.5
G2 - Heat Generation Factor (Rib-Roller End)172.4
Cg - Geometry Factor0.14
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Company Profile

Phone 753-298-7732
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