Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71930 ACD/P4A

S71930 ACD/P4A

Dimensions

d		150	mm
D		210	mm
B		28	mm
d₁		168.5	mm
d₂		168.5	mm
D₂		195.15	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_a	max.	167.7	mm
d_b	min.	159	mm
d_b	max.	167.7	mm
D_a	max.	201	mm
D_b	max.	205	mm
r_a	max.	2	mm
r_b	max.	1	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		5600	r/min
Ball diameter	D_w	19.05	mm
Number of balls	z	23
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	740	N
Static axial stiffness, preload class A		340	N/µm
Preload class B	G_B	1480	N
Static axial stiffness, preload class B		447	N/µm
Preload class C	G_C	2960	N
Static axial stiffness, preload class C		596	N/µm
Preload class D	G_D	5920	N
Static axial stiffness, preload class D		814	N/µm
Calculation factors
Calculation factor	f	1.24
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.08
Calculation factor	f_2D	1.14
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

2.5

Model Number: S71930 ACD/P4A
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：2025-12-09
Application:decoration machinery,EEG,crimping tools,Antenna Industry,outdoor equipment,Safety protection,Cylinder Pneumatic Treatment Element,Spectrum Products,spreader series,Low-voltage electrical equipment,supporting facilities
Similar models:S71930 ACD/P4A S71930 CD/HCP4A 71930 CD/P4A S71930 ACD/HCP4A 71930 ACD/P4A 71930 ACD/P4AL 71930 ACD/HCP4AL 71930 CD/HCP4A 71930 CD/P4AL 71930 ACD/HCP4AH1
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Hot number： 17544 19274 314518 B 6209/HR11QN 7016 ACB/HCP4A AOH 240/800 G BT4B 329004 BG/HA1VA901 BT4B 332654/HA1 BD-C 2215 KV-H 315 FYRP 3-18 MVR1-15 NNC 4830 CV PBMF 354535 M1G1 S71921 ACD/HCP4A SNL 526 TURU