Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71912 CE/HCP4A

71912 CE/HCP4A

Dimensions

d		60	mm
D		85	mm
B		13	mm
d₁		67.75	mm
d₂		65.7	mm
D₁		77.3	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		16.8	mm

Abutment dimensions

d_a	min.	64.6	mm
d_b	min.	62	mm
D_a	max.	80.4	mm
D_b	max.	83	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		69.6	mm

Calculation data

Basic dynamic load rating	C	16.3	kN
Basic static load rating	C₀	11.8	kN
Fatigue load limit	P_u	0.5	kN
Attainable speed for grease lubrication		26000	r/min
Attainable speed for oil-air lubrication		40000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	23
Reference grease quantity	G_ref	2.5	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	87	N
Static axial stiffness, preload class A		52	N/µm
Preload class B	G_B	262	N
Static axial stiffness, preload class B		81	N/µm
Preload class C	G_C	523	N
Static axial stiffness, preload class C		111	N/µm
Calculation factors
Calculation factor	f	1.13
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.05
Calculation factor	f_2C	1.09
Calculation factor	f_HC	1.01
Calculation factor	f₀	8.5

Mass

Mass bearing

0.16

Model Number: 71912 CE/HCP4A
Inner Diameter：60mm Outer Diameter：85mm 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:Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,screen filter,Pneumatic Actuator,packing equipment,storage and transportation equipment,Hydraulic Rama,ultra-quiet generators,machine tool spindle,spectrometer,Pest Monitoring,Gas turbine
Similar models:71912 CD/HCP4AL 71912 CE/HCP4A S71912 CD/HCP4A 71912 ACD/HCP4AL 71912 CB/P4A S71912 ACE/P4A S71912 ACB/HCP4A 71912 ACB/P4AL 71912 ACE/HCP4AH1 71912 ACB/HCP4A
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SAF 22630 x 5.1/8 TLC	130.175	-	-	Bearings, units and housings

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