Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7028 ACD/HCP4A

7028 ACD/HCP4A

Dimensions

d		140	mm
D		210	mm
B		33	mm
d₁		161.6	mm
d₂		161.6	mm
D₁		188.4	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		7000	r/min
Attainable speed for oil-air lubrication		11000	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		404	N/µm
Preload class B	G_B	1800	N
Static axial stiffness, preload class B		530	N/µm
Preload class C	G_C	3600	N
Static axial stiffness, preload class C		702	N/µm
Preload class D	G_D	7200	N
Static axial stiffness, preload class D		950	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	1.02
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

2.83

Model Number: 7028 ACD/HCP4A
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：2026-04-19
Application:garden machinery,flow control valve,machining,Industrial,Machine Tool Accessories,trolley,diving equipment,sleep monitoring,Industrial,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,Machine Tool Accessories
Similar models:7028 CD/HCP4AH1 S7028 ACD/HCP4A 7028 ACD/HCP4AL 7028 CD/P4AL 7028 ACD/P4AL 7028 ACD/P4AH1 7028 CD/P4A 7028 CD/HCP4A 7028 ACD/HCP4A S7028 ACD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 7028ACD/HCP4A products，there is large inventory of SKF 7028 ACD/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 7028 ACD/HCP4A Which SKF 7028ACD/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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
1013320	257.175	298.45	17.48	Seals
1150258	292.1	330.2	19.05	Seals
21x40x7 HMS5 V	21	40	7	Seals
22x62x6 HMSA10 V	22	62	6	Seals
33110	50	85	26	Bearings, units and housings
71911 CD/HCP4A	55	80	13	Bearings, units and housings
FSAF 1316 T	80	-	-	Bearings, units and housings
KMFE 28	28	-	140	Bearings, units and housings
SAFS 23024 KA x 4	101.6	-	-	Bearings, units and housings
SNW 3128x5	127	165.227	100.8634	Bearings, units and housings
XHCE 070/OK 210	210	527	-	Coupling systems
YEL 207-107-2F	36.513	72	37.6	Bearings, units and housings

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Hot number： 15097 16285 27295 44913 524928 61828-2RZ 820 VRME R FYWK 1.1/2 YTA KMFE 13 H PCM 11011550 M SD 14x20x3 SNW 115x2.1/2 SSAFS 22516 TLC SSAFS 23024 KA x 4.1/8 W 61702 R-2RS1