NTN 78/670 angular contact ball bearings
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
parameter:
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