Stainless steel bearing SR144 mini ball bearing SR144-ZZ SR144-2RS

Si3N4, or silicon nitride, is a very hard but lightweight ceramic material. Si3N4 has excellent resistance to water, salt water and many acids and alkalis. It also has a very wide temperature range and is suitable for use in high vacuum applications. The extreme hardness of silicon nitride also means greater brittleness so shock/impact loads should be minimised to avoid the risk of cracking. Si3N4 bearings are only about 40% of the weight of steel bearings.

Bearing Specification :

Silicon nitride bearings have high hardness, very smooth wear surfaces and can run without lubrication so they are frequently used where very low turning resistance is important. They have a very low coefficient of friction compared to steel bearings or even hybrid bearings. The coefficient of friction for Si3N4 bearings at ambient temperature in air with a light load is approximately 0.001.

deep groove ball bearing size list

In recent years, linear bearing is an indispensable part of equipment manufacturing industry. Linear bearing is more and more widely used in electronic equipment, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, machinery, instruments, robots, tool machinery, digital control machine tools Precision equipment such as automobile and digital three-dimensional coordinate measuring equipment or special machinery industry.

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