Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71918 ACE/P4AH1

71918 ACE/P4AH1

Dimensions

d		90	mm
D		125	mm
B		18	mm
d₁		101	mm
d₂		97.9	mm
D₁		114.22	mm
K		0.5	mm
C₁		5.48	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		35.9	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	28.6	kN
Basic static load rating	C₀	23.2	kN
Fatigue load limit	P_u	0.915	kN
Attainable speed for grease lubrication		13000	r/min
Attainable speed for oil-air lubrication		20000	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	260	N
Static axial stiffness, preload class A		164	N/µm
Preload class B	G_B	780	N
Static axial stiffness, preload class B		247	N/µm
Preload class C	G_C	1560	N
Static axial stiffness, preload class C		324	N/µm
Calculation factors
Calculation factor	f	1.19
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.07
Calculation factor	f_HC	1
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

0.54

Model Number: 71918 ACE/P4AH1
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:supporting facilities,small appliances,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,Air,embroidery cloth,Optical detection,electronic materials,gas turbine,metallurgical mold,magnetic elements,switch
Similar models:71918 CB/P4A 71918 CE/P4AL 71918 ACE/HCP4AL 71918 ACD/HCP4AH1 S71918 CB/HCP4A 71918 CD/P4AL 71918 CB/HCP4A 71918 CD/HCP4AH1 71918 ACD/HCP4AL S71918 CD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71918ACE/P4AH1 products，there is large inventory of SKF 71918 ACE/P4AH1 Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71918 ACE/P4AH1 Which SKF 71918ACE/P4AH1 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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