How much do you know about ceramic bearings

The rings and rolling elements of ceramic bearings are made of all-ceramic materials, including zirconia (ZrO2), silicon nitride (Si3N4), and silicon carbide (Sic). The retainer is made of polytetrafluoroethylene, nylon 66, polyetherimide, zirconia, silicon nitride, stainless steel or special aviation aluminum, thereby expanding the application surface of ceramic bearings.

What are the precautions for adding lubricating oil to ceramic bearings?

Why do we need ceramic bearings?

What are the types of ceramic bearings classified by structure?

What are the precautions for adding lubricating oil to ceramic bearings?

It should be noted that before you add lubricating oil, does the ceramic bearing rotate freely? If you open the sealing cover, see if the grease in the bearing has any signs of deterioration, such as there is a lot of dust in the grease, or the grease is dry. If none of the above is a problem. Then you only need to add lubricating oil to the bearing and then turn it.

If the bearing does not turn very smoothly, then the bearing needs to be replaced. Before replacement, directly add lubricating oil to the bearing, and after the sealing cover is fastened, install the bearing in place. When installing the bearing, the inner sleeve of the bearing must be installed, so as to ensure the integrity of the bearing operation.

Why do we need ceramic bearings?

1. Anti-magnetic ceramic bearing: Because it is non-magnetic, it does not absorb dust, which can reduce the peeling of the bearing surface, thereby reducing the running noise. Can be used in demagnetization equipment. Precision instruments and other fields.

2. Electrically insulating ceramic bearings: Due to the high resistivity, the bearing can be prevented from being damaged by arcing, and can be used in various electrical equipment requiring insulation.

3) Vacuum ceramic bearings: Due to the unique oil-free self-lubricating properties of ceramic materials, in the ultra-high vacuum environment, the problem that ordinary bearings cannot be lubricated can be overcome. Note: For the above five types of bearings, the same set of bearings can be used in high temperature, high speed, acid-base, magnetic field, non-insulation, but due to different material properties (please refer to the rare earth ceramic material performance table), when customers choose products, Choose the most suitable ceramic bearing material according to your application.

What are the types of ceramic bearings classified by structure?

According to the structure, ceramic bearings can be divided into: zirconia ceramic bearing with cage, silicon nitride ceramic bearing with cage, composite ceramic bearing with cage. Generally, the retainer material of ceramic bearings is polytetrafluoroethylene (PTFE) as a standard configuration, and glass fiber reinforced nylon 66 (GRPA66-25), special engineering plastics (PEEK, PI), stainless steel (SUS316, SUS304) can also be used. Brass (Cu) etc. Due to the problems of pocket processing and forming technology, ceramic cages are still rarely used; due to the material limitation of cages, cageless zirconia full-ball full-ceramic bearings and silicon nitride full-ball bearings have been developed for special occasions. Full ceramic bearings and composite full ball ceramic bearings.

Shandong Xuanye Precision Machinery Co., Ltd. is able to manufacture the Metric/Inch tapered roller and deep groove ball bearings of P0, P6 and P5 precision classes with the outer diameters 40mm, 300mm and 500mm. Those products are mainly applied to the fields of automobiles, engineering machinery, machine tool and agricultural machinery. Also, the products are exported to the US and other developed countries in Europe.