Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S7209 CD/HCP4A

S7209 CD/HCP4A

Dimensions

d		45	mm
D		85	mm
B		19	mm
d₁		57.3	mm
d₂		57.3	mm
D₂		75.7	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		18.3	mm

Abutment dimensions

d_a	min.	52	mm
d_a	max.	56.5	mm
d_b	min.	52	mm
d_b	max.	56.5	mm
D_a	max.	78	mm
D_b	max.	80.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	42.3	kN
Basic static load rating	C₀	31	kN
Fatigue load limit	P_u	1.32	kN
Attainable speed for grease lubrication		20000	r/min
Ball diameter	D_w	12.7	mm
Number of balls	z	14
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	160	N
Static axial stiffness, preload class A		67	N/µm
Preload class B	G_B	320	N
Static axial stiffness, preload class B		92	N/µm
Preload class C	G_C	640	N
Static axial stiffness, preload class C		128	N/µm
Preload class D	G_D	1280	N
Static axial stiffness, preload class D		185	N/µm
Calculation factors
Calculation factor	f	1.07
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	14.2

Mass

Mass bearing

0.35

Model Number: S7209 CD/HCP4A
Inner Diameter：45mm Outer Diameter：85mm Width：19mm
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:walking Food processing machinery and equipment,internal combustion engine,Film machine,Cylinder Pneumatic Treatment Element,pneumatic,Cylinder Standard,Plastic Equipment,powder metallurgy,Display Devices,magnetic elements,gear grinding machine
Similar models:7209 CD/HCP4A 7209 BECBJ 7209 BE-2RZP S7209 ACD/HCP4A 7209 BECBY 7209 BEGAY 7209 CD/P4A S7209 ACD/P4A 7209 BECBP 7209 BEGAP
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