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Ceramic parts
Ceramic gear higher hardness machinery alumina zirconia precision gear
  • 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 Gear Higher Hardness Machinery Alumina Zirconia Precision Gear

 
A gear is a mechanical element on the rim of which a gear is continuously engaged to transmit motion and power.
 
As a the manufacturer of ceramic gears, us offer a wide the type or sizes of the ceramic gears for industry machinable and ceramic parts applications.our ceramic gears are made of Zirconia, Alumina, Silicon and other advanced ceramics. In stocks and offer customization.

Ceramic pump 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)


The property of the ceramic tubes:
·Excellent physical & chemical stability ·High temperature resistance(up to1750℃)
·Excellent wear & pressure & corrosion& insulation resistance and thermal conductivity..

Some part of us machinable cases specifications:

INTERNAL GEARS AND INTERNAL SPLINES
  MILLING SHAPING TOOTH GRINDING
Maximum O.D. 2500 mm 2500 mm 2500 mm
Minimum I.D. 650 mm 50 mm 100 mm
Maximum Face Width 500 mm 500 mm 500 mm
Maximum Diametral Pitch DP 1 DP 1 DP 0.5
Maximum Module 26 mm 26 mm 45 mm
AGMA Level/ DIN Level DIN Class 8 DIN Class 8 DIN Class 4
Tooth Surface Finishing Ra 3.2 Ra 3.2 Ra 0.6
Maximum Helix Angle ±22.5° ±22.5° ±45°
EXTERNAL GEARS AND EXTERNAL SPLINES
  HOBBING MILLING TOOTH GRINDING
Maximum O.D. 1250 mm 2500 mm 2500 mm
Minimum O.D. 20 mm 200 mm 20 mm
Maximum Face Width 500 mm 500 mm 1480 mm
Maximum Diametral Pitch DP 1 DP 1 DP 0.5
Maximum Module 26 mm 26 mm 45 mm
AGMA Level/ DIN Level DIN Class 8 DIN Class 8 DIN Class 4
Tooth Surface Finishing Ra 3.2 Ra 3.2 Ra 0.6
Maximum Helix Angle ±45° ±45° ±45°


 
Structure classification of Ceramic Gear
Generally, there are wheel teeth, tooth groove, end face, normal face, tooth top circle, tooth root circle, base circle, indexing circle.
 
Classification by wheel shaft relative position
Plane gear drive, straight cylindrical gear drive, external gear drive, internal gear drive, rack drive, helical gear drive, herringbone gear drive, space gear drive, conical gear drive, staggered helical gear drive, worm gear drive
 
By process
Conical gear, blank gear, spiral gear, internal gear, straight gear, worm gear
 
Gear modulus selection
Module of gear
Preferred module:
0.1mm、0.12mm、0.15mm、0.2mm、0.25mm、0.3mm、0.4mm、0.5mm、0.6mm、0.8mm、1mm、1.25mm、1.5mm、2mm、2.5mm、3mm、4mm、5mm、6mm、8mm、10mm、12mm、 14mm、16mm、20mm、25mm、32mm、40mm、50mm;
 
Optional module:
1.75mm、2.25mm、2.75mm、3.5mm、4.5mm、5.5mm、7mm、9mm、14mm、18mm、 22mm、28mm、36mm、45mm;
 
Rarely used module:
3.25mm、3.75mm、6.5mm、11mm、30mm;

  Ceramic gear precision process:
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
Raw materials-Molding process - Sintering - Machining & Grinding - Quality Inspector

 
  Ceramic Parameter:
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 / /
Customization & Machining Service:
As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of ceramic gears 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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