Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S7208 CD/P4A

S7208 CD/P4A

Dimensions

d		40	mm
D		80	mm
B		18	mm
d₁		53.3	mm
d₂		53.3	mm
D₂		69.7	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		17.1	mm

Abutment dimensions

d_a	min.	47	mm
d_a	max.	52.5	mm
d_b	min.	47	mm
d_b	max.	52.5	mm
D_a	max.	73	mm
D_b	max.	75.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	33.8	kN
Basic static load rating	C₀	24	kN
Fatigue load limit	P_u	1.02	kN
Attainable speed for grease lubrication		18000	r/min
Ball diameter	D_w	11.112	mm
Number of balls	z	14
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	125	N
Static axial stiffness, preload class A		53	N/µm
Preload class B	G_B	250	N
Static axial stiffness, preload class B		71	N/µm
Preload class C	G_C	500	N
Static axial stiffness, preload class C		100	N/µm
Preload class D	G_D	1000	N
Static axial stiffness, preload class D		143	N/µm
Calculation factors
Calculation factor	f	1.05
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	14.4

Mass

Mass bearing

0.38

Model Number: S7208 CD/P4A
Inner Diameter：40mm Outer Diameter：80mm 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：2024-12-13
Application:office equipment,Internal thread type,floor industry,extruder,Air,spectrometer,medical equipment,education model Instruments,respirator,leather processing,squeeze machine etc
Similar models:7208 BECBP 7208 BEGAP 7208 BECBM S7208 ACD/HCP4A 7208 BE-2RZP 7208 ACCBM 7208 ACD/HCP4A 7208 CD/HCP4A 7208 ACD/P4A 7208 BECBPH
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