Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7218 CD/P4A

7218 CD/P4A

Dimensions

d		90	mm
D		160	mm
B		30	mm
d₁		111.6	mm
d₂		111.6	mm
D₁		138.4	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		31.9	mm

Abutment dimensions

d_a	min.	101	mm
d_b	min.	101	mm
D_a	max.	149	mm
D_b	max.	154.4	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		117.5	mm

Calculation data

Basic dynamic load rating	C	127	kN
Basic static load rating	C₀	112	kN
Fatigue load limit	P_u	4.25	kN
Attainable speed for grease lubrication		8500	r/min
Attainable speed for oil-air lubrication		14000	r/min
Ball diameter	D_w	22.225	mm
Number of balls	z	16
Reference grease quantity	G_ref	27.765	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	480	N
Static axial stiffness, preload class A		114	N/µm
Preload class B	G_B	960	N
Static axial stiffness, preload class B		154	N/µm
Preload class C	G_C	1920	N
Static axial stiffness, preload class C		215	N/µm
Preload class D	G_D	3840	N
Static axial stiffness, preload class D		314	N/µm
Calculation factors
Calculation factor	f	1.09
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.01
Calculation factor	f_2C	1.03
Calculation factor	f_2D	1.05
Calculation factor	f_HC	1
Calculation factor	f₀	14.6

Mass

Mass bearing

2.27

Model Number: 7218 CD/P4A
Inner Diameter：90mm Outer Diameter：160mm Width：30mm
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：2025-11-28
Application:thin metal materials,Hydraulic Rama,chamfering machine etc,dynamic blood pressure,organic raw materials,industrial fans,defogging and degreasing,car and accessories,electronic materials,engineering machinery,office equipment
Similar models:7218 BECBM 7218 BECBP 7218 ACD/HCP4A 7218 BECBY 7218 BECCM 7218 CD/P4A 7218 BEGAY 7218 BECBJ 7218 BEGAM 7218 ACD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 7218CD/P4A products，there is large inventory of SKF 7218 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 7218 CD/P4A Which SKF 7218CD/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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