Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7008 CB/HCP4A

7008 CB/HCP4A

Dimensions

d		40	mm
D		68	mm
B		15	mm
d₁		50.95	mm
d₂		49.87	mm
D₂		58.88	mm
r_1,2	min.	1	mm
r_3,4	min.	0.6	mm
a		14.8	mm

Abutment dimensions

d_a	min.	44.6	mm
d_b	min.	44.6	mm
D_a	max.	63.4	mm
D_b	max.	64.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		51.6	mm

Calculation data

Basic dynamic load rating	C	9.95	kN
Basic static load rating	C₀	9.3	kN
Fatigue load limit	P_u	0.236	kN
Attainable speed for grease lubrication		34000	r/min
Attainable speed for oil-air lubrication		53000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	26
Reference grease quantity	G_ref	2.22	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	24	N
Static axial stiffness, preload class A		30	N/µm
Preload class B	G_B	48	N
Static axial stiffness, preload class B		40	N/µm
Preload class C	G_C	145	N
Static axial stiffness, preload class C		63	N/µm
Calculation factors
Calculation factor	f	1.04
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.05
Calculation factor	f_HC	1.01
Calculation factor	f₀	9.8

Mass

Mass bearing

0.2

Model Number: 7008 CB/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：2026-04-17
Application:instrument,nail products,security equipment,electromagnetic clutch,Gas turbine,ventilation equipment,Blood coagulation reagent,garden machinery,Chromatography Products,diagnostic test paper,turret industry
Similar models:S7008 ACD/P4A S7008 CD/P4A 7008 CE/HCP4A 7008 CB/P4AL 7008 ACB/P4A 7008 CE/P4AH1 7008 ACD/HCP4A 7008 ACD/HCP4AH 7008 ACB/HCP4A 7008 ACE/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 7008CB/HCP4A products，there is large inventory of SKF 7008 CB/HCP4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 7008 CB/HCP4A Which SKF 7008CB/HCP4A 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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