The silicon nitride ceramic high temperature bearing is introduced in detail

The silicon nitride ceramic high temperature bearing is introduced: definition: full ceramic bearing is refers to the inner ring and outer ring, rolling body is bearing of ceramic materials. Raw material: zirconia ceramic bearing, silicon nitride ceramic bearing, silicon carbide ceramic bearing and alumina ceramic bearing. Accuracy: P0 ~ P5. Size scale: minimum inner diameter 3 mm, maximum diameter of 200 mm. Type: can produce 350 kinds, including all kinds of metric and imperial deep groove ball bearings, self-aligning ball bearing, angular touch bearings, plane bearings, outer spherical bearings. Can supply open, sealing ring method and the way of dust cover structure. According to customer design and produce the corresponding supply work conditions of non-standard bearings. Adhere to the frame: nylon ( NYLON） , ptfe ( PTFE） , polyether ether ketone ( PEEK) , stainless steel, copper or full. Full ceramic bearing compared with steel bearing's advantage lies in: 1, can be used for higher temperature: ceramic materials at high temperature can stable sticking to its mechanical function, and therefore can be used in high temperature. 2, more suitable for the occasion of temperature changes: as a result of the ceramic thermal expansion coefficient is smaller than steel, therefore, the ceramic bearing clearance is affected by temperature changes smaller than those of the steel bearing one, and then in the wider use of the temperature scale. 3, better resistance to bite dead, preventing function: this is due to the thermal expansion coefficient is smaller than the steel ceramics, helps to reduce the thermal deformation, and then improve anti-seizure ability. 4, could oil-free operation: ceramics has the smooth features, also can use the media are smooth, and thus can be applied in the occasion of high vacuum, smooth not convenient. 5, acid, alkali, salt corrosion, and thus can be applied to chemical corrosion occasion. 6, can be used for electrical insulation, no static situation: our company produce of ceramics is not conductive, with no static electricity, the current steel bearing the ablation phenomenon will not occur. 7, can be used in the magnetic environment: ceramic non-magnetic, magnetic foreign body is not easy to stick within the channel, or grits can decrease of abrasive wear. Application scope: used in extremely harsh environment and the special conditions, such as chemical industry, smelting, fluid, food, electronics, semiconductor, medical, vacuum, magnetic, etc. Note: 1, ceramic materials, especially the thermal expansion coefficient of silicon nitride, silicon carbide, alumina is much smaller than the thermal expansion coefficient of steel, therefore if mismanagement, full ceramic bearings with steel shaft is probably caused by the expansion coefficient of different fracture. 2, full ceramic bearing is not suitable for accepting the occasion of heavy load and variable load. The previous: HWT high temperature bearing 1308 details introduction to the next: why use when bearing is running high temperature bearing grease or oil?