Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71906 ACB/HCP4A

S71906 ACB/HCP4A

Dimensions

d		30	mm
D		47	mm
B		9	mm
d₁		35.95	mm
d₂		35.1	mm
D₂		43	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		16.5	mm

Abutment dimensions

d_a	min.	32	mm
d_a	max.	35.4	mm
d_b	min.	32	mm
d_b	max.	34.5	mm
D_a	max.	45	mm
D_b	max.	46.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm

Calculation data

Basic dynamic load rating	C	6.05	kN
Basic static load rating	C₀	4.9	kN
Fatigue load limit	P_u	0.127	kN
Attainable speed for grease lubrication		43000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	22
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	27	N
Static axial stiffness, preload class A		58	N/µm
Preload class B	G_B	54	N
Static axial stiffness, preload class B		75	N/µm
Preload class C	G_C	160	N
Static axial stiffness, preload class C		114	N/µm
Calculation factors
Calculation factor	f	1.07
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1.01
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

0.047

Model Number: S71906 ACB/HCP4A
Inner Diameter：30mm Outer Diameter：47mm Width：9mm
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：2025-11-27
Application:stirrer,gear type,tapered grinder,electric hydraulic lifting platform,sample cup,Special Equipment,electrostatic protection,spectrometer,Automobile,plastic blow molding,metallurgy
Similar models:71906 ACE/HCP4AH 71906 CD/P4A S71906 CB/P4A S71906 ACB/P4A 71906 CE/P4A 71906 ACD/P4A 71906 CE/P4AH 71906 CE/HCP4A S71906 CD/P4A 71906 ACE/P4AL
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