Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71920 ACB/P4A

S71920 ACB/P4A

Dimensions

d		100	mm
D		140	mm
B		20	mm
d₁		114.92	mm
d₂		113.16	mm
D₂		128.7	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		41.4	mm

Abutment dimensions

d_a	min.	106	mm
d_a	max.	114.2	mm
d_b	min.	106	mm
d_b	max.	112.5	mm
D_a	max.	134	mm
D_b	max.	136.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	27.6	kN
Basic static load rating	C₀	33.5	kN
Fatigue load limit	P_u	0.815	kN
Attainable speed for grease lubrication		11000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	37
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	125	N
Static axial stiffness, preload class A		157	N/µm
Preload class B	G_B	250	N
Static axial stiffness, preload class B		202	N/µm
Preload class C	G_C	750	N
Static axial stiffness, preload class C		306	N/µm
Calculation factors
Calculation factor	f	1.11
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.07
Calculation factor	f_HC	1
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

0.88

Model Number: S71920 ACB/P4A
Inner Diameter：100mm Outer Diameter：140mm Width：20mm
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：2021-06-13
Application:non-motor vehicle Electric car,fabric products,hydraulic pump,knitted fabrics,Oral Image,cleaners,Textile Industry Accessories and Accessories,Other Measurements,sterilizers,aerial work platform,Automobile
Similar models:PCM 171920 E 71920 ACD/P4A S71920 ACE/HCP4A 71920 ACE/HCP4AL 71920 CB/HCP4A S71920 CD/P4A S71920 CB/HCP4A 71920 ACD/HCP4A 71920 CB/HCP4AL S71920 ACD/P4A
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Hot number： 19832 31855 32019 X 61806-2RZ 63734 7005 ACD/P4AH BC4-8066/HA3 GE 25 C GS 81156 NJ 2224 ECP OKF 620 PCM 150155100 M PFT 35 TF RMS 14 SD 37x47x4