Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71930 ACD/HCP4AH1

71930 ACD/HCP4AH1

Dimensions

d		150	mm
D		210	mm
B		28	mm
d₁		168.5	mm
d₂		168.5	mm
D₁		191.5	mm
K		0.6	mm
C₁		7.32	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		56.1	mm

Abutment dimensions

d_a	min.	159	mm
d_b	min.	159	mm
D_a	max.	201	mm
D_b	max.	205	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		173.5	mm

Calculation data

Basic dynamic load rating	C	108	kN
Basic static load rating	C₀	125	kN
Fatigue load limit	P_u	3.9	kN
Attainable speed for grease lubrication		6700	r/min
Attainable speed for oil-air lubrication		10000	r/min
Ball diameter	D_w	19.05	mm
Number of balls	z	23
Reference grease quantity	G_ref	35	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	740	N
Static axial stiffness, preload class A		377	N/µm
Preload class B	G_B	1480	N
Static axial stiffness, preload class B		496	N/µm
Preload class C	G_C	2960	N
Static axial stiffness, preload class C		662	N/µm
Preload class D	G_D	5920	N
Static axial stiffness, preload class D		904	N/µm
Calculation factors
Calculation factor	f	1.24
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

2.08

Model Number: 71930 ACD/HCP4AH1
Inner Diameter：150mm Outer Diameter：210mm Width：28mm
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：2024-12-12
Application:shoe-making machinery,vertical pull,manual Tools,nail products,reinforced machinery,Liposuction device,Logistics Equipment,water,Oral Image,orthodontic material,historical instruments
Similar models:71930 ACD/P4AL 71930 ACD/P4AH1 71930 ACD/HCP4AL S71930 CD/HCP4A S71930 ACD/HCP4A 71930 ACD/HCP4AH1 71930 CD/HCP4AH1 71930 CD/P4AL 71930 CD/P4AH1 71930 CD/P4A
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Hot number： 1300 VE R 3207 ATN9 30204 332240 A 470711 510/750 F 71900 ACE/P4A 71922 CD/P4AL 7228 BM 99775 MVR1-35 K 18x22x17 OH 31/1000 HE PBMF 13015090 M1G1 PCMW 426601.5 M