Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71912 CE/P4AL

71912 CE/P4AL

Dimensions

d		60	mm
D		85	mm
B		13	mm
d₁		67.75	mm
d₂		65.7	mm
D₁		77.3	mm
b		2.2	mm
C₁		6.5	mm
C₂		2.5	mm
C₃		2	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		22000	r/min
Attainable speed for oil-air lubrication		34000	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		47	N/µm
Preload class B	G_B	262	N
Static axial stiffness, preload class B		73	N/µm
Preload class C	G_C	523	N
Static axial stiffness, preload class C		100	N/µm
Calculation factors
Calculation factor	f	1.13
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1
Calculation factor	f₀	8.5

Mass

Mass bearing

0.19

Model Number: 71912 CE/P4AL
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：2021-06-04
Application:Industrial,baler,marine analysis,Oral Image,relay,Reflective Materials Industrial fabrics,rolling mill roll neck and slowdown device,Roller,coupling type,PVC,generator
Similar models:71912 CD/P4A 71912 CB/HCP4AL S71912 CB/P4A 71912 ACB/P4AL S71912 ACD/P4A 71912 ACD/HCP4AL 71912 ACB/HCP4AL 71912 ACE/P4AL S71912 CE/P4A 71912 CE/P4AL
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