71913 ACB/P4AL - High precision angular contact ball bearing - Precision ball bearing

Product model	71913 ACB/P4AL
d	65 mm
D	90 mm
B	13 mm
Limiting speed	28000 r/min
d1	73.94mm
d2	72.72mm
D2	83.46mm
Width of lubricating groove (b)	2mm
C1	6.5mm
Distance from the side of the outer ring to the O-ring(C2)	3.8mm
Distance from the side of the outer ring to the O-ring(C3)	1.7mm
r1,2	min.1mm
r3,4	min.0.3mm
a	24.7mm
da	min.69.6mm
db	min.69.6mm
Da	max.85.4mm
Db	max.88mm
Fillet radius(ra)	max.1mm
Fillet radius(rb)	max.0.3mm
Pu	0.375kN
Oil and gas lubrication can reach the speed	18000r/min
Contact angle(α)	25°
Ball diameter(Dw)	5.556mm
The number of pages(z)	32
Reference grease quantity(Gref)	2.96cm³
Preload level A(GA)	60N
Static axial stiffness of preload level A	100N/µm
Preload class B(GB)	120N
Static axial stiffness of preload class B	129N/µm
Preload level C(GC)	360N
Static axial stiffness of preload level C	195N/µm
Correction factor depends on bearing series and size (f)	1.13
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)	1.07
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	0.21kg

71913 ACB/P4AL / High precision angular contact ball bearing / Precision ball bearing