7201 ACD/P4A - High precision angular contact ball bearing - Precision ball bearing

Product model	7201 ACD/P4A
d	12 mm
D	32 mm
B	10 mm
Limiting speed	70000 r/min
d1	18.6mm
d2	18.6mm
D1	25.4mm
r1,2	min.0.6mm
r3,4	min.0.3mm
a	10.2mm
da	min.16.2mm
db	min.16.2mm
Da	max.27.8mm
Db	max.29.6mm
Fillet radius(ra)	max.0.6mm
Fillet radius(rb)	max.0.3mm
Fuel injector position(dn)	20mm
Pu	0.104kN
Oil and gas lubrication can reach the speed	48000r/min
Contact angle(α)	25°
Ball diameter(Dw)	5.556mm
The number of pages(z)	10
Reference grease quantity(Gref)	0.507cm³
Preload level A(GA)	35N
Static axial stiffness of preload level A	41N/µm
Preload class B(GB)	70N
Static axial stiffness of preload class B	52N/µm
Preload level C(GC)	140N
Static axial stiffness of preload level C	68N/µm
Preload level D(GD)	280N
Static axial stiffness of preload level D	90N/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)	1.01
Correction factor, preload class C(f2C)	1.02
Correction factor, preload class D(f2D)	1.05
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	0.037kg

7201 ACD/P4A / High precision angular contact ball bearing / Precision ball bearing