7009 ACD/P4A - High precision angular contact ball bearing - Precision ball bearing

Product model	7009 ACD/P4A
d	45 mm
D	75 mm
B	16 mm
Limiting speed	26000 r/min
d1	54.2mm
d2	54.2mm
D1	65.8mm
r1,2	min.1mm
r3,4	min.0.3mm
a	22.1mm
da	min.49.6mm
db	min.49.6mm
Da	max.70.4mm
Db	max.73mm
Fillet radius(ra)	max.1mm
Fillet radius(rb)	max.0.3mm
Fuel injector position(dn)	56.2mm
Pu	0.9kN
Oil and gas lubrication can reach the speed	17000r/min
Contact angle(α)	25°
Ball diameter(Dw)	9.525mm
The number of pages(z)	17
Reference grease quantity(Gref)	3.3cm³
Preload level A(GA)	170N
Static axial stiffness of preload level A	132N/µm
Preload class B(GB)	340N
Static axial stiffness of preload class B	173N/µm
Preload level C(GC)	680N
Static axial stiffness of preload level C	229N/µm
Preload level D(GD)	1360N
Static axial stiffness of preload level D	309N/µm
Correction factor depends on bearing series and size (f)	1.09
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)	1.05
Correction factor, preload class D(f2D)	1.08
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	0.24kg

7009 ACD/P4A / High precision angular contact ball bearing / Precision ball bearing