Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71911 CB/HCP4AL

71911 CB/HCP4AL

Dimensions

d		55	mm
D		80	mm
B		13	mm
d₁		63.94	mm
d₂		62.7	mm
D₂		73.2	mm
b		2	mm
C₁		6.5	mm
C₂		3.8	mm
C₃		1.7	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		18.8	mm

Abutment dimensions

d_a	min.	59.6	mm
d_b	min.	59.6	mm
D_a	max.	75.4	mm
D_b	max.	78	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		64.8	mm

Calculation data

Basic dynamic load rating	C	13.5	kN
Basic static load rating	C₀	13.7	kN
Fatigue load limit	P_u	0.345	kN
Attainable speed for grease lubrication		28000	r/min
Attainable speed for oil-air lubrication		43000	r/min
Ball diameter	D_w	5.556	mm
Number of balls	z	28
Reference grease quantity	G_ref	2.58	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	33	N
Static axial stiffness, preload class A		38	N/µm
Preload class B	G_B	66	N
Static axial stiffness, preload class B		50	N/µm
Preload class C	G_C	200	N
Static axial stiffness, preload class C		80	N/µm
Calculation factors
Calculation factor	f	1.09
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.03
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1.01
Calculation factor	f₀	9.8

Mass

Mass bearing

0.17

Model Number: 71911 CB/HCP4AL
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：2021-06-10
Application:electrostatic protection,screen filter,Industrial,Forklift industry,sample cup,printing machinery,Digital Generator,stirrer,machining,gas turbine,Garment Accessories
Similar models:S71911 ACE/P4A S71911 CE/P4A 71911 ACE/HCP4AH1 71911 ACE/P4A S71911 ACD/HCP4A 71911 ACE/P4AL 71911 ACD/HCP4A 71911 ACE/HCP4A 71911 ACD/HCP4AL 71911 ACE/P4AH1
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Hot number： 16008 30x50x10 HMS5 V 403703 6130 7003 CE/P4AH 85x130x12 HMS5 RG GEP 440 FS MVR2-15 NAO 25x40x17 NNTR 110x260x115.2ZL NU 208 ECPH PFD 47 PSM 303840 A51 SAF 23048 KATLC x 8.15/16 SD 16x22x3