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S71911 ACD/HCP4A - High precision angular contact ball bearing - Precision ball bearing

Product modelS71911 ACD/HCP4A
d55 mm
D80 mm
B13 mm
d162.7mm
d262.7mm
D274.57mm
r1,2min.1mm
r3,4min.0.3mm
a22.4mm
damax.62.1mm
dbmax.62.1mm
Damax.75.4mm
Dbmax.78mm
Fillet radius(ra)max.1mm
Fillet radius(rb)max.0.3mm
Pu0.43kN
Oil and gas lubrication can reach the speed17000r/min
Contact angle(α)25°
Ball diameter(Dw)7.938mm
The number of pages(z)23
Preload level A(GA)120N
Static axial stiffness of preload level A137N/µm
Preload class B(GB)240N
Static axial stiffness of preload class B179N/µm
Preload level C(GC)480N
Static axial stiffness of preload level C234N/µm
Preload level D(GD)960N
Static axial stiffness of preload level D312N/µm
Correction factor depends on bearing series and size (f)1.15
The correction factor depends on the contact angle(f1)0.98
Correction factor, preload class A(f2A)1
Correction factor, preload class B(f2B)1.07
Correction factor, preload class C(f2C)1.12
Correction factor, preload class D(f2D)1.17
Correction factor of hybrid ceramic bearing(fHC)1.04
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
Weight0.16kg

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S71911 ACD/HCP4A / High precision angular contact ball bearing / Precision ball bearing