Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7209 CD/HCP4A

7209 CD/HCP4A

Dimensions

d		45	mm
D		85	mm
B		19	mm
d₁		57.3	mm
d₂		57.3	mm
D₁		72.7	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_b	min.	52	mm
D_a	max.	78	mm
D_b	max.	80.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		60.6	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
Attainable speed for oil-air lubrication		32000	r/min
Ball diameter	D_w	12.7	mm
Number of balls	z	14
Reference grease quantity	G_ref	5.922	cm³
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

0.34

Model Number: 7209 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:switch,comprehensive experiment,other processing,Industrial,quality inspection equipment,construction machinery and equipment,engineering machine,equipment,sucker industry,electromyography machine,surgical instruments
Similar models:7209 CD/HCP4A 7209 ACCBM 7209 BEGAPH 7209 BECBP 7209 BEGAY 7209 BECBJ 7209 BEP S7209 ACD/HCP4A 7209 CD/P4A 7209 BEGAP
BEARING POWER International Trading Co.,Ltd. specialize in 7209CD/HCP4A products，there is large inventory of SKF 7209 CD/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 7209 CD/HCP4A Which SKF 7209CD/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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