7002 ACE/HCP4AH - High precision angular contact ball bearing - Precision ball bearing

Product model	7002 ACE/HCP4AH
d	15 mm
D	32 mm
B	9 mm
Limiting speed	115000 r/min
d1	20.65mm
d2	19.5mm
D1	26.9mm
Lubrication hole diameter (K)	0.5mm
C1	5.35mm
r1,2	min.0.3mm
r3,4	min.0.15mm
a	10.1mm
da	min.17mm
db	min.17mm
Da	max.30mm
Db	max.30.6mm
Fillet radius(ra)	max.0.3mm
Fillet radius(rb)	max.0.15mm
Fuel injector position(dn)	21.9mm
Pu	0.057kN
Oil and gas lubrication can reach the speed	75000r/min
Contact angle(α)	25°
Ball diameter(Dw)	4.762mm
The number of pages(z)	12
Reference grease quantity(Gref)	0.5cm³
Preload level A(GA)	38N
Static axial stiffness of preload level A	44N/µm
Preload class B(GB)	115N
Static axial stiffness of preload class B	66N/µm
Preload level C(GC)	230N
Static axial stiffness of preload level C	73N/µm
Correction factor depends on bearing series and size (f)	1.03
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	0.025kg

7002 ACE/HCP4AH / High precision angular contact ball bearing / Precision ball bearing