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NTN 78/670 angular contact ball bearings - Industrial Bearing

  NTN 78/670 angular contact ball bearings

NTN 78/670 angular contact ball bearings pdf

NTN 78/670 angular contact ball bearings Engineering Calculator , 421437 Cup Part Number 420000 Series Manufacturing Service . Get Your Free. EE420812X Cone Part Number

Series 420000
Cone Part Number EE420812X
Cup Part Number 421437
Design Units Imperial
Bearing Weight 36.200 Kg
Cage Type Stamped Steel
d 206.375 mm
D 365.049 mm
B – Cone Width 88.897 mm
C – Cup Width 63.500 mm
B 92.075 mm
R – Cone Backface To Clear Radius1 6.35 mm
r – Cup Backface To Clear Radius2 3.30 mm
da – Cone Frontface Backing Diameter 229.11 mm
db – Cone Backface Backing Diameter 239.01 mm
Da – Cup Frontface Backing Diameter 334.30 mm
Db – Cup Backface Backing Diameter 328.93 mm
Ab – Cage-Cone Frontface Clearance 3.6 mm
Aa – Cage-Cone Backface Clearance 18.3 mm
a – Effective Center Location3 -15.5 mm
C90 – Dynamic Radial Rating (90 million revolutions)4 64300 lbf
C1 – Dynamic Radial Rating (1 million revolutions)5 248000 lbf
C0 – Static Radial Rating 409000 lbf
Ca90 – Dynamic Thrust Rating (90 million revolutions)6 44200 lbf
K – Factor7 1.45
e – ISO Factor8 0.4
Y – ISO Factor9 1.49
G1 – Heat Generation Factor (Roller-Raceway) 1150.5
G2 – Heat Generation Factor (Rib-Roller End) 128.2
Cg – Geometry Factor 0.145

      Detailed Parameters

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