36x36mm, 38x38,ceramic rollers, 40x40, 30x30, Si3N4 pins, 32x32, 3...conia rings, 34x55, 36x58, 38x62,Al2O3 rods, 40x65, 42x42, 45x45.

36x36mm, 38x38,ceramic rollers, 40x40, 30x30, Si3N4 pins, 32x32, 34x34, silicon nitride rollers, 36x36, 38x38, ZrO2 dowels,40x40, 50x50, 60x60, zirconia rings, 34x55, 36x58, 38x62,Al2O3 rods, 40x65, 42x42, 45x45.

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22x34, 23x23, 24x24, silicon nitride rollers, 24x26, 24x36,Si3N4 pins, 25x25, 25x36, ceramic rollers, 26x26mm, 26x28, ZrO2 dowels, 26x40, 28x28,zirconium oxide pins, 28x44, 30x48, 32x52!

silicon nitride is a kind of important structure

ceramic materials.　it is a kind of super hard

material, itself has the lubrication, and wear

resistance, as the atomic crystal;　when high

temperature oxidation resistance.　and it also

can resist cold and hot shock, a sharp cooling heating sharply again,

also won't fracture.

it is because of silicon nitride ceramics with such excellent properties, people often use it to

manufacture bearings, steam turbine blades, mechanical seal, mechanical components, such

as permanent mould.

silicon nitride ceramic to make engine parts of

heating surface, can not only improve the

quality of diesel engine, save fuel, but also

can improve the thermal efficiency.　

we are leading manufacturer of advanced/technical ceramic products from china. we supply

quality technical ceramic materials and components with competitive price. our fine ceramics

were exported to all the world.

our available materials for sale are: high purity alumina　ceramics, zirconia ceramics, boron

nitride, machinable glass ceramics, metallized ceramics, silicon nitride, silicon carbide etc.

silicon nitride materials such as ceramic rollers

are suited for manufacturing mechanically

stressed components and for engine-specific

applications, especially at high temperatures. silicon nitride ceramics

characteristics and its low weight make silicon nitride an excellent material choice for

demanding applications. this is why components made of silicon nitride ceramics are

● home

● products

● contact

● equipments

● steel balls

● capillary tubes

● cylindrical roller

● needle rollers

● ceramic rollers

● Si3N4 rollers

● ZrO2 rollers

● sizes or stocks

● D0.5mm series

● D1.0 series

● D1.5 series

● D2.0 series

● D2.5 series

● D3.0 series

● D3.5 series

● D4.0 series

● D5.0 series

● D6.0 series

● D7.0 series

● D8.0 series

● D9.0 series

● D10.0-D60.0 series

● 2x2, 3x3,

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36x36mm, 38x38,ceramic rollers, 40x40, 30x30, Si3N4 pins, 32x32, 3...conia rings, 34x55, 36x58, 38x62,Al2O3 rods, 40x65, 42x42, 45x45.

successfully used in various welding processes.

we can supply advanced technical ceramic part according to customer's drawings, samples

and performance requirement. welcome to send your inquiry for us at any time.

structural ceramics Vs steelsceramic silicon nitride(Si3N4) zirconium oxide(ZrO2)

aluminium (Al2O3)properties Si3N4 ZrO2 Al2O3 SiC 52100 440C

density(g/cm3 3.26 6.05 3.93 3.2 7.85 7.85

water absorption(%) 0 0 0 0 0 0

flexible mold(GPa) 300 210 340 440 208 200

expansion coefficient(10-6K) 3.2 10.5 8.5 3.0 12.5 17

hardness HV(GPa) 16 12 16.5 22 7 7

fracture toughness(MPam1/2) 7.0 10 4.2 3.9 20 25

flexural strength(GPa) 720 950 310 450 -- --

compressive strength(GPa) 2500 2000 2200 1800 -- --

poisson's ratio 0.25 0.3 0.22 0.17 0.3 0.3

thermal conductivity(W/mK-1) 20 2 26 120 40 40

specific resistivity(Ωmm/m) >1010 >1015 >1016 >1.3 0.1-1 0.1-1

temperature(°C) 1400 750 1750 1550 300 150

36x36, 38x38, ZrO2 dowels,40x40, 50x50, 60x60, zirconia rings, 34x55, 36x58, 38x62,Al2O3 rods, 40x65, 42x42, 45x45.

4x4, 5x5, 6x6, 7x7, 8x8, 9x9

● 10x10, 11x11, 11x15, 12x14

● 13x13, 14x14, 15x15, 20x20

● 30x30, 40x40, 50x50, 60x60

needle rollers tapered rollers cylindrical rollers dowel pins grooved pins crowned rollers needle roller bearing copyright©2015 YDTech®

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