Specified for use in high-technology industries such as aerospaace and defense. Excellent corrosion resistance withstands attack from harsh chemicals and demanding environmental conditions. Light weight Silicon Nitride weighs 60% less than steel which reduces centrifugal force, skidding and wear under high speed and acceleration. High Temprature Hardness is twice that of Steel.
1, corrosion-resistant strong acid, alkali, seawater can also be used.
2, high temperature, ultra-wear-resistant, silicon nitride ceramic ball at 8000C, the strength,
hardness almost unchanged.
3, non-magnetic, insulation, magnetic field can also be used, non-conductive.
4, light weight, lighter than the average material bearing 1/4, the density of 3.20g / cm3.
5, high rigidity, high strength, the hardness of the bearing than the double, elastic
modulus of about 1/3.
6, high-speed rotation, rotating body (ball) light weight, small centrifugal rotation.
7, silicon nitride ceramic ball linear expansion coefficient of 3.2 Ã? 10-6 / K, almost
1/4 of bearing steel.
8, silicon nitride ceramic ball bearing self-lubricating can solve the lubrication caused
by pollution and add inconvenience.
9, drug resistance, mechanical strength, damage toughness, low thermal conductivity.
Application areas: composite bearings, mechanical seals, chemical pumps, nozzles,
auto parts, heat exchanger parts, vacuum equipment and other harsh environments.
PRODUCT
SILICON NITRIDE BALLS(Si3N4)
DIAMETER
Φ0.5mmâ??Φ80.0mm
GRADE
G5-G25
PERFORMANCE
1,59% lighter than the ball, which means less centrifugal force and wear less groove at high speed and acceleration.
2, 44% of the modulus of elasticity, which means less load deformation.
3, Rockwell hardness 92
4, the smaller the coefficient of friction
5, only 1/4 of the thermal expansion coefficient of steel, you can tolerate high temperatures.
6, can achieve excellent surface finish, Ra can be 4 to 6.
7, can withstand high temperature and high hardness and strength up to 1050 ° C
8, never rust, can be no lubricant. The
9, more resistant to corrosion than steel.
APPLICATION
Silicon nitride ceramic ball can be used for a variety of bearing performance requirements: high-speed / ultra-high-speed bearings, high precision bearings, vacuum bearings, high / low temperature bearings, non-magnetic bearings, high precision ball screw; , High temperature pump, metering pump used as a ball, measuring the ball. Silicon nitride ceramic ball is generally assembled into a hybrid bearing, can be used in high-tech industries such as aviation, defense and other industries, can also be widely used in chemical, metallurgical, medical, food, oil, electronics and other industries.
Silicon carbide balls are less frequently used than other ceramic materials. Due to its raw material costs and difficulty to machine. Silicon carbide offers the best heat and corrosion resistance of all the ceramic materials. Silicon Carbide is best used under low loads, low to moderate speeds and in highly corrosive environments.
Used In : Ceramic Bearing & Ceramic Tube
Alumina Oxide ceramic balls may be used at temperatures up to 3180 'F. Ceramic balls are extremely hard, resistant to abrasion, and immune to all furnace atmospheres. Applications, where alumina oxide balls are used, include chemical pumps, down-hole pumps, valves, bearings, gauges, flowmeters, etc.
High precision zirconia balls are available in many sizes. Zirconia balls are most commonly used as check valves in flow control applications. When subject to stress by impact, grinding, or cracking, a zirconia ball undergoes transformation toughening which stops cracks from spreading and actually makes the ball stronger in the stressed area than what it was originally.
Bio ceramic for water treatment are mainly used as fillers for water filters. They are proven effective in the reduction of impurities including carcinogens like chloroform and heavy metals in water supplies.
