Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S7205 CD/HCP4A

S7205 CD/HCP4A

Dimensions

d		25	mm
D		52	mm
B		15	mm
d₁		34.1	mm
d₂		34.1	mm
D₂		45.9	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		12.8	mm

Abutment dimensions

d_a	min.	30.6	mm
d_a	max.	33.5	mm
d_b	min.	30.6	mm
d_b	max.	33.5	mm
D_a	max.	46.4	mm
D_b	max.	49.6	mm
r_a	max.	1	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	13.5	kN
Basic static load rating	C₀	7.2	kN
Fatigue load limit	P_u	0.305	kN
Attainable speed for grease lubrication		38000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	13
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	50	N
Static axial stiffness, preload class A		32	N/µm
Preload class B	G_B	100	N
Static axial stiffness, preload class B		42	N/µm
Preload class C	G_C	200	N
Static axial stiffness, preload class C		58	N/µm
Preload class D	G_D	400	N
Static axial stiffness, preload class D		80	N/µm
Calculation factors
Calculation factor	f	1.03
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	1.06
Calculation factor	f_HC	1.01
Calculation factor	f₀	9.1

Mass

Mass bearing

0.12

Model Number: S7205 CD/HCP4A
Inner Diameter：25mm Outer Diameter：52mm 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：2025-12-09
Application:pump accessories,insect experimental analysis instrument,instrumentation instrument,ultra-quiet generators,Body shaping,Industrial,Roller mill,forming machine,Grinding and polishing equipment,printing machinery,packaging machinery
Similar models:S7205 CD/P4A 7205 BECBPH 7205 CD/HCP4A 7205 BECBY 7205 ACD/P4A 7205 ACD/HCP4A 7205 BEGBY 7205 CD/P4A 7205 BECBP 7205 BE-2RZP
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