Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 719/9 CE/HCP4A

719/9 CE/HCP4A

Dimensions

d		9	mm
D		20	mm
B		6	mm
d₁		12.5	mm
d₂		11.76	mm
D₁		16.52	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		5.2	mm

Abutment dimensions

d_a	min.	11	mm
d_b	min.	11	mm
D_a	max.	18	mm
D_b	max.	19.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		13.3	mm

Calculation data

Basic dynamic load rating	C	2.03	kN
Basic static load rating	C₀	0.8	kN
Fatigue load limit	P_u	0.034	kN
Attainable speed for grease lubrication		133000	r/min
Attainable speed for oil-air lubrication		200000	r/min
Ball diameter	D_w	3.175	mm
Number of balls	z	11
Reference grease quantity	G_ref	0.09	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	11	N
Static axial stiffness, preload class A		11	N/µm
Preload class B	G_B	32	N
Static axial stiffness, preload class B		17	N/µm
Preload class C	G_C	64	N
Static axial stiffness, preload class C		24	N/µm
Calculation factors
Calculation factor	f	1.03
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.05
Calculation factor	f_2C	1.09
Calculation factor	f_HC	1.01
Calculation factor	f₀	7.4

Mass

Mass bearing

0.007

Model Number: 719/9 CE/HCP4A
Inner Diameter：9mm Outer Diameter：20mm Width：6mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Angular contact ball bearings Angular contact ball bearings, super-precision
Details： Angular contact ball bearings, super-precision
Update date：2025-12-09
Application:electric hydraulic lifting platform,electromagnet,other accessories,surgical instruments,insect experimental analysis instrument,knitted fabrics,Industrial equipment,electromagnetic clutch,decoration machinery,Infrared Technology,Automobile
Similar models:S71930 ACD/HCP4A 71900 CE/P4AH 71948 ACD/P4A 71908 CE/P4A 71911 ACB/HCP4A 71924 ACB/P4A 71936 ACD/HCP4AH1 71915 ACE/P4A 71918 CB/P4A 71919 ACD/P4AL
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