Sliding bearings, bearings that work under sliding friction. Sliding bearings work smoothly, reliably and without noise. Under the condition of liquid lubrication, the sliding surface is separated by lubricating oil without direct contact, and the friction loss and surface wear can be greatly reduced. The oil film also has a certain vibration absorption capacity. But the starting friction resistance is larger. The part of the shaft supported by the bearing is called the journal, and the part that matches the journal is called the bush. In order to improve the frictional properties of the bearing pad surface, the layer of anti-friction material cast on its inner surface is called a bearing bush. The materials of bearing bush and bearing lining are collectively called sliding bearing materials. Sliding bearing applications are generally under high-speed, heavy-duty, high-precision or intermittent working conditions.
The sliding friction occurs when the sliding bearing works; the size of the rolling friction mainly depends on the manufacturing accuracy; and the size of the friction of the sliding bearing mainly depends on the material of the sliding surface of the bearing. The general working surface of sliding bearings has self-lubricating function; sliding bearings are divided into non-metallic sliding bearings and metal sliding bearings according to materials. Non-metallic sliding bearings are mainly plastic bearings. Plastic bearings are generally made of engineering plastics with better performance; more professional manufacturers generally have engineering plastic self-lubricating modification technology, through fibers, special lubricants, glass beads Wait for the self-lubricating enhanced modification of engineering plastics to achieve certain performance, and then use the modified plastics to process into self-lubricating plastic bearings by injection molding.
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