71913 ACE/P4AH1 - High precision angular contact ball bearing - Precision ball bearing

Product model	71913 ACE/P4AH1
d	65 mm
D	90 mm
B	13 mm
Limiting speed	28000 r/min
d1	72.75mm
d2	70.7mm
D1	82.32mm
Lubrication hole diameter (K)	0.5mm
C1	3.83mm
r1,2	min.1mm
r3,4	min.0.3mm
a	24.6mm
da	min.69.6mm
db	min.67mm
Da	max.85.4mm
Db	max.88mm
Fillet radius(ra)	max.1mm
Fillet radius(rb)	max.0.3mm
Fuel injector position(dn)	74.5mm
Pu	0.5kN
Oil and gas lubrication can reach the speed	18000r/min
Contact angle(α)	25°
Ball diameter(Dw)	7.938mm
The number of pages(z)	24
Reference grease quantity(Gref)	2.6cm³
Preload level A(GA)	142N
Static axial stiffness of preload level A	120N/µm
Preload class B(GB)	425N
Static axial stiffness of preload class B	181N/µm
Preload level C(GC)	850N
Static axial stiffness of preload level C	238N/µm
Correction factor depends on bearing series and size (f)	1.19
The correction factor depends on the contact angle(f1)	0.99
Correction factor, preload class A(f2A)	1
Correction factor, preload class B(f2B)	1.04
Correction factor, preload class C(f2C)	1.07
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
Weight	0.2kg

71913 ACE/P4AH1 / High precision angular contact ball bearing / Precision ball bearing