Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S7008 CD/HCP4A

S7008 CD/HCP4A

Dimensions

d		40	mm
D		68	mm
B		15	mm
d₁		49.2	mm
d₂		49.2	mm
D₂		61.02	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		14.8	mm

Abutment dimensions

d_a	min.	44.6	mm
d_a	max.	48.7	mm
d_b	min.	44.6	mm
d_b	max.	48.7	mm
D_a	max.	63.4	mm
D_b	max.	66	mm
r_a	max.	1	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	16.8	kN
Basic static load rating	C₀	11	kN
Fatigue load limit	P_u	0.465	kN
Attainable speed for grease lubrication		24000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	18
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	60	N
Static axial stiffness, preload class A		42	N/µm
Preload class B	G_B	120	N
Static axial stiffness, preload class B		56	N/µm
Preload class C	G_C	240	N
Static axial stiffness, preload class C		76	N/µm
Preload class D	G_D	480	N
Static axial stiffness, preload class D		107	N/µm
Calculation factors
Calculation factor	f	1.06
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	1.02
Calculation factor	f₀	10

Mass

Mass bearing

0.17

Model Number: S7008 CD/HCP4A
Inner Diameter：40mm Outer Diameter：68mm Width：15mm
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：2026-04-18
Application:product accessories,machine tool spindle,defogging and degreasing,rolling mill roll neck and slowdown device,car and accessories,survey accessories,cleaning agent,Garment Accessories,diagnostic test paper,auto tools,Switch
Similar models:7008 CE/HCP4AL 7008 CD/P4AH 7008 ACB/HCP4A 7008 CE/P4AL1 S7008 CE/P4A 7008 ACE/HCP4AL1 7008 CE/P4A 7008 ACB/P4A 7008 CB/HCP4AL 7008 CE/P4AH1
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