Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71918 CE/P4A

71918 CE/P4A

Dimensions

d		90	mm
D		125	mm
B		18	mm
d₁		101	mm
d₂		97.9	mm
D₁		114.22	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		24.4	mm

Abutment dimensions

d_a	min.	96	mm
d_b	min.	93.2	mm
D_a	max.	119	mm
D_b	max.	121.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		103.5	mm

Calculation data

Basic dynamic load rating	C	30.2	kN
Basic static load rating	C₀	24.5	kN
Fatigue load limit	P_u	0.965	kN
Attainable speed for grease lubrication		14500	r/min
Attainable speed for oil-air lubrication		22000	r/min
Ball diameter	D_w	11.112	mm
Number of balls	z	24
Reference grease quantity	G_ref	7	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	163	N
Static axial stiffness, preload class A		65	N/µm
Preload class B	G_B	488	N
Static axial stiffness, preload class B		102	N/µm
Preload class C	G_C	977	N
Static axial stiffness, preload class C		141	N/µm
Calculation factors
Calculation factor	f	1.19
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

0.54

Model Number: 71918 CE/P4A
Inner Diameter：90mm Outer Diameter：125mm Width：18mm
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：2026-04-16
Application:Other machinery,sucker industry,hydraulic control element,climb ladder,Roller mill,Industrial,special broaching machine,Vacuum generator,roller lathe,luminescent reagent,E Beauty
Similar models:S71918 CD/HCP4A 71918 ACD/HCP4AL 71918 ACB/HCP4AL 71918 CB/P4A 71918 ACE/HCP4AL 71918 ACB/P4A 71918 ACE/P4AH1 S71918 ACD/P4A S71918 CB/HCP4A S71918 ACE/HCP4A
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