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Ceramic bushing
Ceramic bushing bearing with sleeve bearing
  • Brand:Mingrui Ceramic
  • Material:Alumina Zirconia Si3N4 SiC
  • Precision:Ra0.1 um tolerance 0.001mm
  • Features:Heat resistance / Wear resistance / High purity / Refractory / High Corrosion / Good Insulation
  • Color:Can be customized
  • Customized:Mingrui ceramics can be customized according to customer requirements


Ceramic Bushing Bearing With Sleeve Bearing


 
The Ceramic bushing bearing action Ring sleeve in the valve application field, bushing within the valve cover, generally uses the advanced ceramics and other corrosion-resistant materials, used for sealing effect. The bushings made of grinding bearings with abrasion-reducing materials are also called bearing bushings and bushings. Usually cast on the inner surface of the bearing, mainly in order to reduce costs, save valuable grinding materials. Thickness 0.5-6mm, for large size or important bearings. Ceramic bushing bearing  are mainly to replace the wear of the shaft, in addition to the support shaft operation, friction and wear reduction, vibration reduction role.

Part of available ceramic bushing bearing:

inner diameter: d outer diameter: D wide: B Basic dynamic load rating Maximum permissible speed Basic static load rating
(φ) (φ) (mm) (N) (rpm) (N)
62 9 13000 15000 8150 -
40 68 9 13800 14000 10200
45 75 10 16500 12000 10800
50 80 10 16800 11000 11400
55 90 11 20300 10000 14000
60 95 11 20800 9500 15000
80 125 14 35100 7000 31500
85 130 14 35800 6700 33500
100 150 16 46200 5600 44000
110 170 19 60500 5000 57000
12 32 14 10600 20000 6200


As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of ceramic bushing bearing or other ceramic parts.

Ceramic bushing bearing is a kind of inorganic nonmetallic ceramic material made of natural or synthetic compound through forming and sintering at high temperature.It has high melting point, high hardness, high wear resistance, oxidation resistance and other advantages.

Best stiffness, highest hardness, high compressive strength, dimensional stability, electrical insulation, corrosion resistance

Ceramic material composition:
· 95%--99.99% Alumina (Al2O3)   · Silicon Carbide   · Silicon Nitride
· TTZ: Magnesia partially stabilized Zirconia (ZrO2)
· YTZP: Yttria partially stabilized Zirconia (ZrO2)
· ZDY: Yttria fully stabilized Zirconia (ZrO2)

Properties Units AL2O3 ZrO2 SiC Si3N4
Density g/cm3 3.65-3.93 5.95-6.0 3.12 3.23
Water absorption 0 0 0 0 0
Coefficientof thermal expansion 10-16/k 7.9-8.5 10.5 3 3.2
Modulus of elasticity young`s mod GPa 280-340 210 440 300
Poission`s ratio / 0.21-0.22 0.3 0.17 0.26
HV hardness hv MPa 1650 1300-1365 2800 1500
Flexural strength MPa 310 950 390 720
Flexural strength(700℃) MPa 230 210 380 450
Compressive strength MPa 2200 2000 1800 2300
Fracture toughness MPa*m1/2 4.2 10 3.9 6.2
Heat conductivity W/m*k 26-30 2-2.2 120 25
Electrical resistivity Ω*mm2/m >1016 >1015 >103 >1013
Max use temperature 1750 1050 1550 1050
Resistance to acid alkaline / high high high high
Dielectric constant / 9.6 29 9.66-10.03 /
Dielectric strength KV/mm 8.7 9 / /
Thermal shock resistance △T(℃) 180-220 280-350 230-260 /
Tensile strength MPa 248 250 / /

Precision of manufacture
Dimensional accuracy Up to 0.001mm
Smoothness Highest possible mirror
Concentricity Up to 0.003mm
Parallelism Up to 0.002mm
The inner hole tolerance The minimum  0.005mm
Straight flute The narrowest 0.1x100mm
The thickness of the size Minimum to 0.02mm
The screw thread Minimum internal thread M2
Cylindricity Up to 0.004mm
The linear tolerance Up to 0.001mm
The smallest aperture The minimum 0.07mm
Precision process CNC maching,grinding,lapping
Surface finish Glazed,polishing or metallized
Visual quality:
1. No cracks,  no dark dots, no contamination and sharp edges;
2. Evenly distributed glaze with very smooth surface

Customization & Machining Service:
As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of ceramic bushing or other ceramic parts.High quality,Factory price, on-time delivery, High composition of ceramics

For more information about ceramics parts,please contact our engineers in time  >>>       

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