Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7028 ACD/P4AL

7028 ACD/P4AL

Dimensions

d		140	mm
D		210	mm
B		33	mm
d₁		161.6	mm
d₂		161.6	mm
D₁		188.4	mm
b		3.1	mm
C₁		17.9	mm
C₂		6.6	mm
C₃		5.6	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		57.5	mm

Abutment dimensions

d_a	min.	149	mm
d_b	min.	149	mm
D_a	max.	201	mm
D_b	max.	205	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		166.3	mm

Calculation data

Basic dynamic load rating	C	146	kN
Basic static load rating	C₀	156	kN
Fatigue load limit	P_u	5.1	kN
Attainable speed for grease lubrication		5600	r/min
Attainable speed for oil-air lubrication		8500	r/min
Ball diameter	D_w	22.225	mm
Number of balls	z	22
Reference grease quantity	G_ref	45	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	900	N
Static axial stiffness, preload class A		364	N/µm
Preload class B	G_B	1800	N
Static axial stiffness, preload class B		477	N/µm
Preload class C	G_C	3600	N
Static axial stiffness, preload class C		633	N/µm
Preload class D	G_D	7200	N
Static axial stiffness, preload class D		856	N/µm
Calculation factors
Calculation factor	f	1.16
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.05
Calculation factor	f_2D	1.08
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

3.42

Model Number: 7028 ACD/P4AL
Inner Diameter：140mm Outer Diameter：210mm Width：33mm
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：2026-04-20
Application:pressure control valve,intermediate,plastic rolling,non-motor vehicle Electric car,baler,tire industry,Spectrum Products,Other machinery,extruder,transportation equipment,magnetic elements
Similar models:S7028 ACD/HCP4A 7028 CD/P4AL S7028 ACD/P4A 7028 CD/HCP4A 7028 ACD/P4AL 7028 CD/HCP4AL 7028 ACD/HCP4A 7028 BGM 7028 CD/P4A 7028 CD/HCP4AH1
BEARING POWER International Trading Co.,Ltd. specialize in 7028ACD/P4AL products，there is large inventory of SKF 7028 ACD/P4AL Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 7028 ACD/P4AL Which SKF 7028ACD/P4AL 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
26237	66.675	92.02	9.53	Seals
30x40x7 CRW1 R	30	40	7	Seals
45x55x7 HMSA10 V	45	55	7	Seals
85907	-	-	31.75	Seals
99291	76.0222	85.3186	15.875	Seals
BT4B 332716/HA1	320	422.275	-	Bearings, units and housings
HA 3032 E	138.1125	210	93	Bearings, units and housings
N 208 ECMB	40	80	18	Bearings, units and housings
NUP 314 ECP	70	150	35	Bearings, units and housings
SNL 3168 G	340	-	-	Bearings, units and housings
SSAFS 22528 x 4.7/8	123.825	-	-	Bearings, units and housings
SY 2.1/2 TF	63.5	-	-	Bearings, units and housings

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