Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7204 CD/HCP4A

7204 CD/HCP4A

Dimensions

d		20	mm
D		47	mm
B		14	mm
d₁		29.1	mm
d₂		29.1	mm
D₁		38.7	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		11.6	mm

Abutment dimensions

d_a	min.	25.6	mm
d_b	min.	25.6	mm
D_a	max.	41.4	mm
D_b	max.	44.6	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		31.1	mm

Calculation data

Basic dynamic load rating	C	11.9	kN
Basic static load rating	C₀	5.85	kN
Fatigue load limit	P_u	0.245	kN
Attainable speed for grease lubrication		43000	r/min
Attainable speed for oil-air lubrication		60000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	11
Reference grease quantity	G_ref	1.539	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	45	N
Static axial stiffness, preload class A		28	N/µm
Preload class B	G_B	90	N
Static axial stiffness, preload class B		37	N/µm
Preload class C	G_C	180	N
Static axial stiffness, preload class C		50	N/µm
Preload class D	G_D	360	N
Static axial stiffness, preload class D		70	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	8.7

Mass

Mass bearing

0.09

Model Number: 7204 CD/HCP4A
Inner Diameter：20mm Outer Diameter：47mm Width：14mm
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：2021-06-03
Application:Switch,storage and transportation equipment,internal combustion engine,ventilator anesthesia machine etc,Film machine,Optical Instruments,engine,non-motor vehicle Electric car,Hydraulic Press,historical instruments,security equipment
Similar models:7204 ACD/P4A 7204 BECBP 7204 CD/HCP4A 7204 BECBJ 7204 BEP 7204 BECBY 7204 ACD/HCP4A 7204 BE-2RZP 7204 ACCBM S7204 ACD/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 7204CD/HCP4A products，there is large inventory of SKF 7204 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 7204 CD/HCP4A Which SKF 7204CD/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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