Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71911 ACB/P4A

S71911 ACB/P4A

Dimensions

d		55	mm
D		80	mm
B		13	mm
d₁		63.94	mm
d₂		62.7	mm
D₂		73.2	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		26	mm

Abutment dimensions

d_a	min.	59.6	mm
d_a	max.	63.3	mm
d_b	min.	59.6	mm
d_b	max.	62.1	mm
D_a	max.	75.4	mm
D_b	max.	78	mm
r_a	max.	1	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	12.7	kN
Basic static load rating	C₀	12.7	kN
Fatigue load limit	P_u	0.325	kN
Attainable speed for grease lubrication		20000	r/min
Ball diameter	D_w	5.556	mm
Number of balls	z	28
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	55	N
Static axial stiffness, preload class A		88	N/µm
Preload class B	G_B	110	N
Static axial stiffness, preload class B		114	N/µm
Preload class C	G_C	330	N
Static axial stiffness, preload class C		172	N/µm
Calculation factors
Calculation factor	f	1.09
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

0.19

Model Number: S71911 ACB/P4A
Inner Diameter：55mm Outer Diameter：80mm Width：13mm
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:X-ray Equipment,training beds etc,Plastic molding,car,Spectrum Products,thin metal materials,electrostatic protection,sheet industry,wheel lathe,Laser Devices,gantry processing
Similar models:71911 CE/HCP4AL 71911 ACB/HCP4A 71911 CD/HCP4A 71911 ACE/P4A S71911 ACE/P4A S71911 CB/P4A S71911 CE/P4A 71911 CE/HCP4AH1 S71911 CB/HCP4A S71911 CD/P4A
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GEG 160 ES	160	230	160	Bearings, units and housings
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SAF 22516 x 2.3/4 TLC	69.85	-	-	Bearings, units and housings
SD 40x47x4	40	47	4	Seals
SI 35 ES-2RS	35	-	25	Bearings, units and housings
SYFWK 506 L	-	-	-	Bearings, units and housings

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Hot number： 100042 18880 220x250x15 HS8 R 409502 629/HR11TN 706 ACD/HCP4A 91340 BA1B 311745 ECL 204 KMFE 17 N 2207 ECM NATR 12 PPA RNAO 25x35x26 SAF 22528 x 4.7/8 TLC SNW 13x2.1/8