Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7028 CD/P4A

7028 CD/P4A

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		40.1	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	153	kN
Basic static load rating	C₀	166	kN
Fatigue load limit	P_u	5.3	kN
Attainable speed for grease lubrication		6700	r/min
Attainable speed for oil-air lubrication		10000	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	570	N
Static axial stiffness, preload class A		151	N/µm
Preload class B	G_B	1140	N
Static axial stiffness, preload class B		206	N/µm
Preload class C	G_C	2280	N
Static axial stiffness, preload class C		289	N/µm
Preload class D	G_D	4560	N
Static axial stiffness, preload class D		418	N/µm
Calculation factors
Calculation factor	f	1.16
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.05
Calculation factor	f_2D	1.09
Calculation factor	f_HC	1
Calculation factor	f₀	15.8

Mass

Mass bearing

3.42

Model Number: 7028 CD/P4A
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：2025-12-09
Application:air purification,preservation equipment,outdoor equipment,vacuum filter,storage and transportation equipment,Industry,metal mold,rolling mill roll neck and slowdown device,product accessories,Industrial Electromechanical,Dental Equipment
Similar models:7028 CD/P4AH1 S7028 ACD/P4A 7028 CD/P4AL 7028 CD/HCP4AH1 7028 BGM 7028 ACD/HCP4AL 7028 CD/HCP4AL 7028 ACD/P4AH1 7028 CD/P4A 7028 ACD/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 7028CD/P4A products，there is large inventory of SKF 7028 CD/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 7028 CD/P4A Which SKF 7028CD/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
18x47x6 HMS5 V	18	47	6	Seals
38x60x8 CRW1 R	38	60	8	Seals
85x100x10 HMS5 V	85	100	10	Seals
C 39/560 KM	560	750	140	Bearings, units and housings
GEZM 208 ES-2LS	63.5	100.013	95.25	Bearings, units and housings
K 23x35x16 TN	23	35	16	Bearings, units and housings
K 89424 M	120	250		Bearings, units and housings
NJ 2328 ECML	140	300	102	Bearings, units and housings
S7022 ACD/P4A	110	170	28	Bearings, units and housings
S71919 CB/HCP4A	95	130	18	Bearings, units and housings
SNL 3060 ATURA	277.8125	-	-	Bearings, units and housings
YELAG 209-111	42.863	85	42.8	Bearings, units and housings

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