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Ball.Ceramic Ball Zirconia Ball (Zr02)

It has the highest mechanical strength and high toughness at room temperature. Furthermore, it has a similar thermal expansion rate to metals, making it easy to weld.
It is good for bearings with low heat conduction as well as good heat insulation and self-lubrication capabilities.

  • Production Range

    0.5mm~50.8 mm (30 mm or bigger, customizable)

  • Applications

    Ceramic bearings, Combined bearings, Cold machining tools, Dies, Guide rollers, Valves, etc.

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본문

(Chemical Composition)
Symbol Chemical Composition
ZrO2 94.75%
Y2O3 5.20%
Other 0.055%
Mechanical Property
Performance of ZrO2 Ceramic Material
Density g/㎤ 6.05
Hardness(HV) Hv 1200 ~ 1250
Bending Strength Mpa 300
Crushing Strength Mpa 2100
Elastic Modulus Gpa 210
Fracture Toughness Mpa m½ 10
Thermal Expansion Coefficient 10-6/K 10.5
Max Usage Temperature ℃ 800


Production Grade (Unit : ㎛)

Grade Name Application Range Shape Precision and Roughness Sectional Precision and Gauge
Grade Metric Inch Diameter Variance (VDWS) Sphericity (VDWS) Surface Roughness (Ra) Variance in LOTs (VDWL) Gauge Interval
10 0.3 ~ 25 0.025 ~ 1 0.25 0.25 0.025 0.5 1

Ball-mill products have separate grades.