Zirconia ceramic bearing ball

Ceramic valve ball and seat Ceramic valve ball and seat components
ZrO2 ceramic balls
zirconia ceramic ball 3_1
ZrO2 ceramic balls
zirconia ceramic ball 3_1

Zirconia ceramic bearing ball

Ceramic Precison ball for bearing

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Zirconia ceramic bearing ball

ZrO2 Precision ceramic balls,Grade G3-G100 are availabel,Standard size or custom made.

Item
Unit
Zirconia ceramic
99% alumina ceramic
96% alumina ceramic
95% alumina ceramic
steatite ceramic
Mullite ceramic
cordierite ceramic
Bulk density
g/cm3
6
3.8
3.7
3.6
2.8
2.2
2.3
Water absorption
%
0
0
0
0
0
12
12
Thermal Conductivity
(W/m.k)
10
19-30
16-28
14-24
2-3
2-6
1.3-1.8
Resistance to thermal shock, Minimum
TKε
70
150
140
140
80
150
300
Withstand voltage, Minimum
KV
15
20
18
18
20
25
–
Flexural strength
Mpa
1000
300
280
240
120
120
30
Sinterring temperature
℃
1500
1670
1600
1600
1250
1250
1250
Maximum working temperature
℃
1200
1500
1200
1200
800
1000
1000
1). Excellent insulation ,security , long working life .
2). Precise grinding and polishing.
3). Excellent heat radiation, small size ,more environmental and energy-efficient .
4). good thermal conductivity
5). large specific heat capacity
6). low pressure drop
7). good heat-shock resisting ability
8). Working temperature: 600℃-1200℃

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