77258B Franke Slewing Ring Bearings

Brand Name: Franke
Model Number: 77258B
Series: 28000
Cone Part Number: 28159
Cup Part Number: 28317
Design Units: Imperial
Bearing Weight: 0.4 Kg
Cage Type: Stamped Steel
d: 39.980 mm
D: 80.035 mm

Product Details

Series 28000
Cone Part Number 28159
Cup Part Number 28317
Design Units Imperial
Bearing Weight 0.4 Kg
Cage Type Stamped Steel
d 39.980 mm
D 80.035 mm
B - Cone Width 20.940 mm
C - Cup Width 15.875 mm
B 21.435 mm
R - Cone Backface To Clear Radius1 3.560 mm
r - Cup Backface To Clear Radius2 1.52 mm
da - Cone Frontface Backing Diameter 44.96 mm
db - Cone Backface Backing Diameter 52.07 mm
Da - Cup Frontface Backing Diameter 73.90 mm
Db - Cup Backface Backing Diameter 69.09 mm
Ab - Cage-Cone Frontface Clearance 1.8 mm
Aa - Cage-Cone Backface Clearance 1.5 mm
a - Effective Center Location3 -4.8 mm
C90 - Dynamic Radial Rating (90 million revolutions)4 3700 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 14300 lbf
C0 - Static Radial Rating 15500 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 2550 lbf
K - Factor7 1.45
e - ISO Factor8 0.4
Y - ISO Factor9 1.49
G1 - Heat Generation Factor (Roller-Raceway) 20.7
G2 - Heat Generation Factor (Rib-Roller End) 12.5
Cg - Geometry Factor 0.0709
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Phone 922-5267
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