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

71918 CD/P4A

Dimensions

d		90	mm
D		125	mm
B		18	mm
d₁		100.8	mm
d₂		100.8	mm
D₁		114.2	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		23.5	mm

Abutment dimensions

d_a	min.	96	mm
d_b	min.	96	mm
D_a	max.	119	mm
D_b	max.	121	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		103.3	mm

Calculation data

Basic dynamic load rating	C	47.5	kN
Basic static load rating	C₀	51	kN
Fatigue load limit	P_u	2.08	kN
Attainable speed for grease lubrication		9500	r/min
Attainable speed for oil-air lubrication		16000	r/min
Ball diameter	D_w	11.112	mm
Number of balls	z	26
Reference grease quantity	G_ref	7.5	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	180	N
Static axial stiffness, preload class A		94	N/µm
Preload class B	G_B	360	N
Static axial stiffness, preload class B		129	N/µm
Preload class C	G_C	720	N
Static axial stiffness, preload class C		183	N/µm
Preload class D	G_D	1440	N
Static axial stiffness, preload class D		268	N/µm
Calculation factors
Calculation factor	f	1.23
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.09
Calculation factor	f_2D	1.15
Calculation factor	f_HC	1
Calculation factor	f₀	16.3

Mass

Mass bearing

0.55

Model Number: 71918 CD/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:metering pump,embroidery cloth,Plastic molding,Storage Tool,Infrared Technology,sheet industry,Textile Accessories,industrial equipment,gear type,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,large agricultural machinery
Similar models:S71918 ACD/P4A 71918 CB/HCP4AL 71918 ACD/HCP4A S71918 CD/P4A 71918 CE/HCP4AH1 S71918 CE/P4A 71918 ACB/HCP4A 71918 ACB/P4A 71918 ACD/HCP4AH1 71918 ACE/HCP4AH1
BEARING POWER International Trading Co.,Ltd. specialize in 71918CD/P4A products，there is large inventory of SKF 71918 CD/P4A 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 CD/P4A Which SKF 71918CD/P4A 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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