White Ball Ceramic Zirconia Oxide ZrO2


ceramic balls with material ceramic ZRO2 can use for bearings and we have precision such as G5 G10 G20 G50



Product Details

China Wholesale Small White Ceramic Balls Specfication :

Product Name
Precision Ceramic balls
Material
Zirconia Oxide
Size
1mm - 30mm
Grade
G3- G20mm
Surface Roughness
Ra0.05
Torlerance
+/- 0.001mm
Lead time
10days
Shipping
Air Express (DHL/UPS/TNT/ FedEx)

ball ceramic
loose ceramic ball bearings


Standard Sizes List Of Ceramic Balls 

Inch Size
MM Size
Inch Size
MM Size
Inch Size
MM Size
Inch Size
MM Size
1/16
1.588
5/16
7.938
9/16
14.288
15/16
23.812
3/32
2.381
11/32
8.731
19/32
15.081
1
25.4
1/8
3.175
3/8
9.525
5/8
15.875
17/16
26.988
5/32
3.969
13/32
10.318
21/32
16.668
9/8
28.575
3/16
4.762
7/16
11.1125
11/16
17.462
19/16
30.162
7/32
5.556
29/64
11.509
23/32
18.256
5/4
31.75
15/64
5.953
15/32
11.906
3/4
19.05
21/16
33.338
1/4
6.35
31/64
12.303
25/32
19.844
11/8
34.925
17/64
6.747
1/2
12.7
13/16
20.638
23/16
36.512
9/32
7.144
17/32
13.494
7/8
22.225
3/2
38.1

Grades of Precision for Ceramic Bearing Balls:

Grades
Diameter Variation
Spherical Deviation
Diameter Variation of Batch
Surface 
Roughness(Ra)
G5
0.13
0.13
0.25
0.014
G10
0.25
0.25
0.5
0.020
G16
0.4
0.4
0.8
0.025
G20
0.5
0.5
1
0.032
G28
0.7
0.7
1.4
0.050
G40
1
1
2
0.080
G60
1.5
1.2
3
0.1
G100
2.5
2.5
5
0.125



Properties of Best Ceramic Balls Materials:


Item
Units
Si3N4
ZrO2
GCr15
9Cr18
Color
-
Black
White
Grey
Grey
Density
g/cm3
≥3.20
5.95-6.05
7.85
7.85
Hardness (HV)
Gpa
16
12
7
7
Flexural Strength
Mpa
>720
900
-
-
Fracture Toughness
Mpa.m1/2
6.2
7
20
25
Elasticity Modulus
Gpa
300
210
208
200
Coefficient of Thermal Expansion
10-6/℃
3.0-3.2
10.3
12.5
17
Thermal Conductivity
w/m.k
15-20
2.2
40
40
Volume Resistivity
Ω.cm
>1014
1012
0.1-1
0.1-1
Max. Operating Temp.
(No load)
1200
850
300
150


Application of Ceramic Balls :

Ceramic ball can be used in all bearings with special requirement, metering ball , valve ball, track ball, and precision grinding ball; it can be used in fields requiring chemical resistance, high temperature, electronic insulation, magnetic insulation, non-lubrication. It is an idea substitute for steel ball in chemical corrosion application.


Material: Zirconia, Alumina, Si3N4

Size Range: 1mm - 30mm.

Grade: G3 - G20



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