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71913 ACD/P4AL - High precision angular contact ball bearing - Precision ball bearing

Product model71913 ACD/P4AL
d65 mm
D90 mm
B13 mm
Limiting speed20000 r/min
d172.7mm
d272.7mm
D182.3mm
Width of lubricating groove (b)2.2mm
C16.5mm
Distance from the side of the outer ring to the O-ring(C2)3.2mm
Distance from the side of the outer ring to the O-ring(C3)2mm
r1,2min.1mm
r3,4min.0.3mm
a24.7mm
damin.69.6mm
dbmin.69.6mm
Damax.85.4mm
Dbmax.88mm
Fillet radius(ra)max.1mm
Fillet radius(rb)max.0.3mm
Fuel injector position(dn)74.7mm
Pu0.68kN
Oil and gas lubrication can reach the speed13000r/min
Contact angle(α)25°
Ball diameter(Dw)7.938mm
The number of pages(z)26
Reference grease quantity(Gref)2.85cm³
Preload level A(GA)120N
Static axial stiffness of preload level A136N/µm
Preload class B(GB)240N
Static axial stiffness of preload class B176N/µm
Preload level C(GC)480N
Static axial stiffness of preload level C232N/µm
Preload level D(GD)960N
Static axial stiffness of preload level D311N/µm
Correction factor depends on bearing series and size (f)1.2
The correction factor depends on the contact angle(f1)0.98
Correction factor, preload class A(f2A)1
Correction factor, preload class B(f2B)1.04
Correction factor, preload class C(f2C)1.08
Correction factor, preload class D(f2D)1.14
Correction factor of hybrid ceramic bearing(fHC)1
Limit value (e)0.68
Axial load factor (single shaft, tandem shaft)(Y2)0.87
Axial load factor (single shaft, tandem shaft)(Y0)0.38
Axial load factor (single shaft, tandem shaft)(X2)0.41
Axial load factor (back to back, face to face) (Y1)0.92
Axial load factor (back to back, face to face) (Y2)1.41
Axial load factor (back to back, face to face) (Y0)0.76
Radial load factor (back to back, face to face) (X2)0.67
Weight0.21kg

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71913 ACD/P4AL / High precision angular contact ball bearing / Precision ball bearing