Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71913 CD/HCP4AL

71913 CD/HCP4AL

Dimensions

d		65	mm
D		90	mm
B		13	mm
d₁		72.7	mm
d₂		72.7	mm
D₁		82.3	mm
b		2.2	mm
C₁		6.5	mm
C₂		3.2	mm
C₃		2	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		17	mm

Abutment dimensions

d_a	min.	69.6	mm
d_b	min.	69.6	mm
D_a	max.	85.4	mm
D_b	max.	88	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		74.7	mm

Calculation data

Basic dynamic load rating	C	20.8	kN
Basic static load rating	C₀	17	kN
Fatigue load limit	P_u	0.71	kN
Attainable speed for grease lubrication		17000	r/min
Attainable speed for oil-air lubrication		26000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	26
Reference grease quantity	G_ref	2.85	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	80	N
Static axial stiffness, preload class A		62	N/µm
Preload class B	G_B	160	N
Static axial stiffness, preload class B		84	N/µm
Preload class C	G_C	320	N
Static axial stiffness, preload class C		115	N/µm
Preload class D	G_D	640	N
Static axial stiffness, preload class D		164	N/µm
Calculation factors
Calculation factor	f	1.2
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	10.7

Mass

Mass bearing

0.17

Model Number: 71913 CD/HCP4AL
Inner Diameter：65mm Outer Diameter：90mm 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：2025-12-09
Application:DC generators,industry test,Rolling mill,other CNC,Reflective Materials Industrial fabrics,root canal filling,Embroidery,gear type,Control,medical equipment,transistor fittings
Similar models:71913 ACD/HCP4AL 71913 CE/P4AL S71913 ACB/P4A 71913 CE/P4A S71913 CD/HCP4A 71913 ACB/P4AL 71913 ACD/P4A S71913 ACE/P4A S71913 ACB/HCP4A S71913 ACD/P4A
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500 VA V	450	-	-	Seals
58x72x8 CRW1 R	58	72	8	Seals
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6312-2RS1/HC5C3WT	60	130	31	Bearings, units and housings
82540	209.55	255.5748	-	Seals
FSAF 22314 T	70	-	-	Bearings, units and housings
K 3x5x7 TN	3	5	7	Bearings, units and housings
MVR1-65	65	85	-	Seals
NU 216 ECM	80	140	26	Bearings, units and housings

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