Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71928 ACD/HCP4A

S71928 ACD/HCP4A

Dimensions

d		140	mm
D		190	mm
B		24	mm
d₁		155.4	mm
d₂		155.4	mm
D₂		178.25	mm
r_1,2	min.	1.5	mm
r_3,4	min.	0.6	mm
a		50.6	mm

Abutment dimensions

d_a	min.	147	mm
d_a	max.	154.8	mm
d_b	min.	147	mm
d_b	max.	154.8	mm
D_a	max.	183	mm
D_b	max.	186	mm
r_a	max.	1.5	mm
r_b	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	90.4	kN
Basic static load rating	C₀	110	kN
Fatigue load limit	P_u	3.65	kN
Attainable speed for grease lubrication		7000	r/min
Ball diameter	D_w	15.875	mm
Number of balls	z	29
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	560	N
Static axial stiffness, preload class A		386	N/µm
Preload class B	G_B	1120	N
Static axial stiffness, preload class B		507	N/µm
Preload class C	G_C	2240	N
Static axial stiffness, preload class C		681	N/µm
Preload class D	G_D	4480	N
Static axial stiffness, preload class D		933	N/µm
Calculation factors
Calculation factor	f	1.29
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.17
Calculation factor	f_HC	1.04
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

1.4

Model Number: S71928 ACD/HCP4A
Inner Diameter：140mm Outer Diameter：190mm Width：24mm
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：2024-12-13
Application:flow control valve,Microwave Equipment,electronic components,electronic materials,experimental equipment,other CNC,Other Machine Tools,test equipment,Machine Tool Accessories,security equipment,sanitation facilities
Similar models:71928 CD/HCP4AH1 71928 CD/P4AL 71928 ACD/P4AH1 71928 CD/HCP4AL 71928 ACD/P4AL 71928 CD/HCP4A S71928 ACD/P4A 71928 ACD/HCP4AH1 71928 CD/P4AH1 S71928 CD/P4A
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470981	942	-	-	Seals
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70053	177.8	215.9	15.88	Seals
978x1018x18 HS5 R	978	1018	18	Seals
BS2-2315-2RSK/VT143	75	160	64	Bearings, units and housings
FSAF 22617 T	74.6125	-	-	Bearings, units and housings
KMT 4	18	-	20	Bearings, units and housings
NU 3068 MA	340	520	133	Bearings, units and housings
SAF 22509 T	36.5125	-	-	Bearings, units and housings

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