Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71911 CD/HCP4A

S71911 CD/HCP4A

Dimensions

d		55	mm
D		80	mm
B		13	mm
d₁		62.7	mm
d₂		62.7	mm
D₂		74.57	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		15.6	mm

Abutment dimensions

d_a	min.	59.6	mm
d_a	max.	62.1	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	19.5	kN
Basic static load rating	C₀	14.6	kN
Fatigue load limit	P_u	0.62	kN
Attainable speed for grease lubrication		19000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	23
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	70	N
Static axial stiffness, preload class A		54	N/µm
Preload class B	G_B	140	N
Static axial stiffness, preload class B		72	N/µm
Preload class C	G_C	280	N
Static axial stiffness, preload class C		99	N/µm
Preload class D	G_D	560	N
Static axial stiffness, preload class D		140	N/µm
Calculation factors
Calculation factor	f	1.15
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.18
Calculation factor	f_HC	1.04
Calculation factor	f₀	10.4

Mass

Mass bearing

0.15

Model Number: S71911 CD/HCP4A
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：2021-06-06
Application:Wire grinder,Insect Count,office equipment,flow control valve,Pneumatic Control Valves,Surveying Surveying Instruments,beverage production,medical equipment,climb ladder,plastic rolling,Gas turbine
Similar models:71911 ACD/HCP4A S71911 CB/P4A S71911 ACD/HCP4A S71911 ACB/P4A 71911 CD/P4A 71911 CB/P4A S71911 ACB/HCP4A 71911 ACD/P4A 71911 ACE/HCP4A 71911 ACB/P4A
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Model No.	Inner Diameter	Outer Diameter	Width	Type
1400 VA R	1270	-	-	Seals
45x85x10 HMSA10 RG	45	85	10	Seals
60x85x8 HMSA10 V	60	85	8	Seals
71906 CE/P4AH	30	47	9	Bearings, units and housings
71918 ACE/P4A	90	125	18	Bearings, units and housings
72x90x10 HMS5 V	72	90	10	Seals
NUP 217 ECML	85	150	28	Bearings, units and housings
SAF 22314	70	-	-	Bearings, units and housings
SILQG 160 ES	160	-	160	Bearings, units and housings
SNW 130x5.3/8	136.525	150	142.5194	Bearings, units and housings
SYE 2 15/16-3	74.6125	-	-	Bearings, units and housings
YAR 220-2F	100	180	98.4	Bearings, units and housings

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