Silicon nitride precision machine tool bearing ball is a kind of material with excellent insulation ability, stable mechanical properties, low thermal expansion, high stiffness, wear resistance and low density.

It is a covalently bonded compound composed of silicon and nitrogen, and has two crystal forms of α and β, in which α-Si3N4 is a particle crystal and β-Si3N4 is a needle crystal. These properties make it an ideal upgrade product for the production of micron and nanoscale pastes in mechanical engineering.

The advantages of Silicon nitride precision machine tool bearing ball products: 

excellent mechanical strength and wear resistance 

Silicon nitride Vickers hardness of up to 1500 HV, bending strength of 600 Mpa, which makes the bearing roller has excellent wear and fracture resistance under high load conditions. 

Excellent corrosion and heat resistance 

These bearing rollers can withstand maximum service temperatures of up to 1200 ° C, suitable for high temperature environments, while their chemical stability guarantees service life in corrosive environments. 

Low density and high performance 

silicon nitride has a density of only 3.2 g/cm³, which helps to reduce the overall structural weight compared to traditional metal materials, thus improving the efficiency and speed of mechanical equipment. 

Smooth surface treatment, bearing roller surface treatment is very smooth

effectively reducing friction, improving the operating efficiency of the bearing, and significantly reducing heat generation, which is a crucial feature in high-speed operation.

The ceramic performance table:

Ball grade: