709 ACE/HCP4AH - High precision angular contact ball bearing - Precision ball bearing

Product model	709 ACE/HCP4AH
d	9 mm
D	24 mm
B	7 mm
Limiting speed	165000 r/min
d1	13.6mm
d2	13mm
D1	19.4mm
Lubrication hole diameter (K)	0.5mm
C1	4.25mm
r1,2	min.0.3mm
r3,4	min.0.15mm
a	7.4mm
da	min.11mm
db	min.11mm
Da	max.22mm
Db	max.22.6mm
Fillet radius(ra)	max.0.3mm
Fillet radius(rb)	max.0.15mm
Fuel injector position(dn)	14.8mm
Pu	0.028kN
Oil and gas lubrication can reach the speed	106000r/min
Contact angle(α)	25°
Ball diameter(Dw)	3.969mm
The number of pages(z)	9
Reference grease quantity(Gref)	0.19cm³
Preload level A(GA)	23N
Static axial stiffness of preload level A	29N/µm
Preload class B(GB)	65N
Static axial stiffness of preload class B	42N/µm
Preload level C(GC)	130N
Static axial stiffness of preload level C	55N/µm
Correction factor depends on bearing series and size (f)	1.02
The correction factor depends on the contact angle(f1)	0.99
Correction factor, preload class A(f2A)	1
Correction factor, preload class B(f2B)	1.03
Correction factor, preload class C(f2C)	1.06
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
Weight	0.013kg

709 ACE/HCP4AH / High precision angular contact ball bearing / Precision ball bearing