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S71908 ACB/HCP4A - Precision ball bearing - High precision angular contact ball bearing

Product modelS71908 ACB/HCP4A
d40 mm
D62 mm
B12 mm
d148.46mm
d247.6mm
D255.64mm
r1,2min.0.6mm
r3,4min.0.3mm
a18mm
damax.47.9mm
dbmax.47mm
Damax.58.8mm
Dbmax.60mm
Fillet radius(ra)max.0.6mm
Fillet radius(rb)max.0.3mm
Pu0.122kN
Oil and gas lubrication can reach the speed32000r/min
Contact angle(α)25°
Ball diameter(Dw)3.969mm
The number of pages(z)28
Preload level A(GA)31N
Static axial stiffness of preload level A73N/µm
Preload class B(GB)62N
Static axial stiffness of preload class B92N/µm
Preload level C(GC)185N
Static axial stiffness of preload level C138N/µm
Correction factor depends on bearing series and size (f)1.06
The correction factor depends on the contact angle(f1)0.99
Correction factor, preload class A(f2A)1
Correction factor, preload class B(f2B)1.02
Correction factor, preload class C(f2C)1.08
Correction factor of hybrid ceramic bearing(fHC)1.01
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
Weight0.12kg

Product Details

The S71908 ACB/HCP4A is part of the High precision angular contact ball bearing series within our Precision ball bearing range. It is engineered for high-performance industrial use and delivers reliable operation under demanding working conditions.

Typical applications include: electric motors, pumps, gearboxes, agricultural machinery and automotive systems. For detailed dimensions and load ratings, please refer to the specification table above. Contact FIJ for bulk pricing, technical support or customized solutions.

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S71908 ACB/HCP4A / High precision angular contact ball bearing / Precision ball bearing