Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7004 ACE/P4A

7004 ACE/P4A

Dimensions

d		20	mm
D		42	mm
B		12	mm
d₁		26.6	mm
d₂		24.8	mm
D₁		34.21	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		13.2	mm

Abutment dimensions

d_a	min.	22	mm
d_b	min.	22	mm
D_a	max.	40	mm
D_b	max.	39.6	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm
d_n		28.1	mm

Calculation data

Basic dynamic load rating	C	7.15	kN
Basic static load rating	C₀	3.25	kN
Fatigue load limit	P_u	0.137	kN
Attainable speed for grease lubrication		48000	r/min
Attainable speed for oil-air lubrication		75000	r/min
Ball diameter	D_w	6.35	mm
Number of balls	z	12
Reference grease quantity	G_ref	1.1	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	64	N
Static axial stiffness, preload class A		52	N/µm
Preload class B	G_B	193	N
Static axial stiffness, preload class B		78	N/µm
Preload class C	G_C	390	N
Static axial stiffness, preload class C		102	N/µm
Calculation factors
Calculation factor	f	1.04
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.03
Calculation factor	f_2C	1.06
Calculation factor	f_HC	1
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

0.064

Model Number: 7004 ACE/P4A
Inner Diameter：20mm Outer Diameter：42mm Width：12mm
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:paint paint,electromagnetic clutch,Leather Products,top industry,orthodontic material,Dental Equipment,physical instruments,Storage Tool,industrial fans,pneumatic Pump,Spectrum Products
Similar models:S7004 CD/P4A 7004 ACE/HCP4AL 7004 ACD/P4AH 7004 ACE/P4A 7004 ACD/P4A 7004 CD/P4A 7004 ACE/P4AL1 7004 CD/HCP4A 7004 ACD/HCP4AH 7004 CD/HCP4AH
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Hot number： 1100580 1600520 1726309 B-2RS1/VP274 595079 708 ACD/P4AH 7080 AM 71812 ACD/HCP4 7214 BECBPH FSAF 22520 x 3.3/8 GEG 200 ES GEH 25 ESX-2LS PCZ 2616 M RNU 2203 ECP SSAFS 22340 T YSA 208-2FK + H 2308