71917 ACB/P4AL - High precision angular contact ball bearing - Precision ball bearing

Product model	71917 ACB/P4AL
d	85 mm
D	120 mm
B	18 mm
Limiting speed	20000 r/min
d1	98.2mm
d2	96.7mm
D2	110.2mm
Width of lubricating groove (b)	2.2mm
C1	9.3mm
Distance from the side of the outer ring to the O-ring(C2)	4.5mm
Distance from the side of the outer ring to the O-ring(C3)	2.9mm
r1,2	min.1.1mm
r3,4	min.0.6mm
a	33.1mm
da	min.91mm
db	min.91mm
Da	max.114mm
Db	max.116.8mm
Fillet radius(ra)	max.1mm
Fillet radius(rb)	max.0.6mm
Pu	0.64kN
Oil and gas lubrication can reach the speed	13000r/min
Contact angle(α)	25°
Ball diameter(Dw)	6.747mm
The number of pages(z)	37
Reference grease quantity(Gref)	6.46cm³
Preload level A(GA)	93N
Static axial stiffness of preload level A	136N/µm
Preload class B(GB)	185N
Static axial stiffness of preload class B	174N/µm
Preload level C(GC)	560N
Static axial stiffness of preload level C	264N/µm
Correction factor depends on bearing series and size (f)	1.11
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	0.57kg

71917 ACB/P4AL / High precision angular contact ball bearing / Precision ball bearing