Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7228 ACD/P4A

7228 ACD/P4A

Dimensions

d		140	mm
D		250	mm
B		42	mm
d₁		176.8	mm
d₂		176.8	mm
D₁		213.2	mm
r_1,2	min.	3	mm
r_3,4	min.	1.5	mm
a		66.7	mm

Abutment dimensions

d_a	min.	154	mm
d_b	min.	154	mm
D_a	max.	236	mm
D_b	max.	241	mm
r_a	max.	2.5	mm
r_b	max.	1.5	mm
d_n		184.8	mm

Calculation data

Basic dynamic load rating	C	212	kN
Basic static load rating	C₀	228	kN
Fatigue load limit	P_u	6.95	kN
Attainable speed for grease lubrication		5000	r/min
Attainable speed for oil-air lubrication		7500	r/min
Ball diameter	D_w	30.162	mm
Number of balls	z	18
Reference grease quantity	G_ref	83.931	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	1350	N
Static axial stiffness, preload class A		397	N/µm
Preload class B	G_B	2700	N
Static axial stiffness, preload class B		516	N/µm
Preload class C	G_C	5400	N
Static axial stiffness, preload class C		679	N/µm
Preload class D	G_D	10800	N
Static axial stiffness, preload class D		911	N/µm
Calculation factors
Calculation factor	f	1.09
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.01
Calculation factor	f_2C	1.02
Calculation factor	f_2D	1.05
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

8.14

Model Number: 7228 ACD/P4A
Inner Diameter：140mm Outer Diameter：250mm Width：42mm
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:Performance test,Industrial,paper processing machine,Laser Devices,Workpiece,labor insurance,Antenna Potentials,Material handling equipment,Reflective Materials Industrial fabrics,water,other mold
Similar models:7228 BM 7228 ACD/P4A 7228 CD/HCP4A 7228 BCBM 7228 ACD/HCP4A 7228 BGAM 7228 CD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 7228ACD/P4A products，there is large inventory of SKF 7228 ACD/P4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 7228 ACD/P4A Which SKF 7228ACD/P4A 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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
2600648	660.4	714.38	23.27	Seals
31353	79.375	133.38	11.13	Seals
3201 A-2RS1	12	32	15.9	Bearings, units and housings
32019 X	95	145	32	Bearings, units and housings
48x70x9 CRSA1 R	48	70	9	Seals
6814	17.4752	34.93	6.35	Seals
719/9 CE/P4AH	9	20	6	Bearings, units and housings
71909 CB/HCP4A	45	68	12	Bearings, units and housings
HME 3168	55	-	340	Bearings, units and housings
NUTR 35 X	35	72	28	Bearings, units and housings
SAF 23024 KAT x 4.3/16	107.95	-	-	Bearings, units and housings
SNP 148x8.15/16	227.0125	290.6522	205.7146	Bearings, units and housings

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Hot number： 240/850 ECAK30/W33 BD-23222 CCK/W33-AHX 3222 G 24184 ECA/W33 51306 6080 M 61917 6211/HC5C3 709 CE/P4AH D/W RW4 GS 89414 NKS 30 OKF 250 PWKR 90.2RS SAFS 22218 T SAFS 22522 x 3.7/8