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The end face and inner and outer cylindrical surfaces of the bearing end cover require turning. Semi-finishing and rough turning can be used, and roughing and finishing should be carried out separately to ensure the surface roughness requirements. The main bearing end cover process design is as follows:

Hybrid ceramic bearings may be less common, and the main configuration of hybrid ceramic bearings is composed of inner and outer ring bearing steel/stainless steel + ceramic balls + PA66/stainless steel retainers + 2RS/ZZ. Hybrid ceramic bearings have the following four advantages during use.

To overcome the shortcomings of fire prevention in practical applications of bearing steel materials, fire prevention treatment must be carried out, the purpose of which is to increase the fire resistance limit of bearing steel to the limit range specified in the design specifications. There are many measures to prevent bearing steel from rapidly heating up and deforming and collapsing in a fire. The key is to adopt different methods according to different situations, such as using insulation and refractory materials to block the flame from directly burning the bearing steel, reducing the speed of heat transfer, delaying the time when the bearing steel temperature rises and the strength weakens, etc. But no matter what method is adopted, the principle is the same. The following introduces several fire protection measures for different bearing steels.

Installation of NSK bearings: The installation of NSK bearings must be carried out in a dry and clean environment. Before installation, the machining quality of the matching surfaces of the shaft and the housing, the end faces of the bosses, the grooves and the connection surfaces should be carefully checked. All matching connection surfaces must be carefully cleaned and burrs removed, and the unprocessed surfaces of the castings must be free of molding sand.

(1) Do not open the original packaging, pay attention to whether the packaging is damaged, and try to keep the oil seal in the original packaging before assembly; (2) Avoid direct sunlight and do not place it near high temperature heat sources, as this will cause rubber aging; (3) Oil seals must not be scattered at will, pay attention to dust and soil prevention, and ensure that the oil seals are in a closed or covered state; (4) When transporting and using oil seals, in order to prevent the oil seals from deforming and the springs from falling off, please do not give excessive impact; (5) Oil seals must not be tied with thin ropes, nor hung on nails or metal wires, which will damage the sealing lip; (6) Oil seals must not be placed in humid places, which will cause metal parts to rust; (7) Do not place seals near TVs and places that produce ozone; (8) Do not rub the lip end with your fingernails or hard objects to prevent damage to the sealing lip;