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

7028 CD/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		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		7500	r/min
Attainable speed for oil-air lubrication		12000	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		168	N/µm
Preload class B	G_B	1140	N
Static axial stiffness, preload class B		228	N/µm
Preload class C	G_C	2280	N
Static axial stiffness, preload class C		320	N/µm
Preload class D	G_D	4560	N
Static axial stiffness, preload class D		464	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	1.02
Calculation factor	f₀	15.8

Mass

Mass bearing

2.83

Model Number: 7028 CD/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：2021-06-05
Application:glass processing machine,Industry,chamfer,coal mill,Embroidery,tapping machine,DC generators,Rolling mill gear box,suction nozzle,building decoration raw materials and accessories,respirator
Similar models:7028 ACD/P4AL 7028 CD/P4A 7028 CD/P4AL 7028 CD/HCP4A S7028 ACD/P4A 7028 CD/HCP4AH1 7028 ACD/HCP4A 7028 ACD/P4AH1 S7028 CD/HCP4A 7028 ACD/HCP4AL
BEARING POWER International Trading Co.,Ltd. specialize in 7028CD/HCP4A products，there is large inventory of SKF 7028 CD/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 CD/HCP4A Which SKF 7028CD/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
1500380	381	425.45	19.05	Seals
33136	84.1502	114.3	11.13	Seals
28464	72.2376	101.68	11.13	Seals
28817	73.025	104.78	9.53	Seals
32007 X/DF	35	62	-	Bearings, units and housings
42687/42620	76.2	127	30.162	Bearings, units and housings
50186	127	180.98	12.7	Seals
60x100x10 HMSA10 RG	60	100	10	Seals
628	8	24	8	Bearings, units and housings
7550	19.05	36.5	6.35	Seals
BT4B 328909 G/HA1VA901	304.8	501.65	-	Bearings, units and housings
GB 1017	-	-	41	Bearings, units and housings

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