Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7018 CD/P4A

7018 CD/P4A

Dimensions

d		90	mm
D		140	mm
B		24	mm
d₁		105.4	mm
d₂		105.4	mm
D₁		124.6	mm
r_1,2	min.	1.5	mm
r_3,4	min.	1	mm
a		27.5	mm

Abutment dimensions

d_a	min.	97	mm
d_b	min.	97	mm
D_a	max.	133	mm
D_b	max.	136	mm
r_a	max.	1.5	mm
r_b	max.	1	mm
d_n		108.7	mm

Calculation data

Basic dynamic load rating	C	79.3	kN
Basic static load rating	C₀	76.5	kN
Fatigue load limit	P_u	3	kN
Attainable speed for grease lubrication		9000	r/min
Attainable speed for oil-air lubrication		15000	r/min
Ball diameter	D_w	15.875	mm
Number of balls	z	20
Reference grease quantity	G_ref	15	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	300	N
Static axial stiffness, preload class A		103	N/µm
Preload class B	G_B	600	N
Static axial stiffness, preload class B		141	N/µm
Preload class C	G_C	1200	N
Static axial stiffness, preload class C		198	N/µm
Preload class D	G_D	2400	N
Static axial stiffness, preload class D		287	N/µm
Calculation factors
Calculation factor	f	1.14
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.05
Calculation factor	f_2D	1.09
Calculation factor	f_HC	1
Calculation factor	f₀	15.6

Mass

Mass bearing

1.16

Model Number: 7018 CD/P4A
Inner Diameter：90mm Outer Diameter：140mm Width：24mm
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：2025-12-09
Application:cooling system,industry test,Machine tool accessories,supporting facilities,diagnostic test paper,product accessories,hydraulic pressure gauge,die casting mold,CNC,rolling machine,Die
Similar models:S7018 CB/P4A S7018 ACE/P4A 7018 CE/P4AL1 S7018 ACB/P4A 7018 ACE/P4AH1 7018 CE/HCP4AH1 7018 CE/HCP4A 7018 ACD/P4A 7018 CE/HCP4AL 7018 ACD/P4AL
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