Self-lubricating principle of inlaid bearings and sliders

1. The self-lubricating principle of inlaid bearings and sliders:

Self-lubricating bearings and sliders embedded with solid lubricants expand the solid lubricant under the action of friction heat and automatically transfer to the friction surface to form a lubricating film to prevent metal-to-metal contact, thereby reducing the friction factor and wear and improving Bearing load carrying capacity.

The metal frame can be made of bronze, cast iron, cast steel, stainless steel, or non-metal frame such as bakelite, phenolic plastic, nylon, etc. according to user needs.

2. Characteristics of inlaid bearings and sliders:

Inlaid solid lubricant self-lubricating bearings and sliders are composed of more than 10 lubricating materials with superior lubrication properties and each with its own specialties. Some of the ingredients can withstand the bearing pressure under extremely large loads. On a 2.5 um thick film, the friction speed of 40m per second can withstand the contact stress of 2800Mpa; some ingredients have low intermolecular shear force and low viscosity. The junction force can easily form molecular slip surfaces. There are about 40,000 slip surfaces in only a 2.5 um thick lubricating layer, which plays a key role in the lubrication performance of solid lubricants. Some ingredients have normal friction factors at a high temperature of 399°C; some ingredients have good lubrication properties at normal temperatures, normal loads, high friction speeds, vacuum, and atmosphere.

In short, the friction coefficient of self-lubricating solid lubricants embedded in bearings and sliders is mostly between 0.006 and 0.09, which can adapt to the friction conditions of almost all working conditions.

3. Purpose of inlaid bearings and sliders:

Inlaid bearings and sliders are embedded in the skeleton with solid lubricant and perform self-lubricating friction operation. This is an ideal solution to the pollution problem caused by liquid lubricating oil during the lubrication process. Therefore, it is widely used in food machinery, pharmaceutical machinery and other non-metallic machinery. Equipment that pollutes the environment.

The solid lubricant used in inlaid bearings and sliders has the characteristics of large load carrying capacity, so it is very suitable for heavy loads, low speeds, high temperatures, water vapor and other corrosion conditions where oil film is not easy to form, and working conditions where frequent lubrication is inconvenient. Now it is Used in mining, metallurgy, petroleum, geology, chemical industry, papermaking, bridges, hydraulic hubs, ships, aerospace and other industrial sectors. The most outstanding results include the steel ladle crane and the 1150 blooming mill, which have a service life that is 6-8 times longer than that of the original bearings. Various steel rolling mills, shearing machines, cooling bed slides (steel pipe pullers), pharmaceutical machines, winched mixing pots, rubber refiner bearings, floating crane bearings, textile factory dryers, non-ferrous metal rolling mills, steel plate shafts for heavy-duty vehicles The effect is very obvious on pin bushings, cutter mixers in chemical plants, roller bearings on coal mine conveyors, inner bushings of deep rod pumps on drilling rigs, protective drill pipe bushings, and guide bushings, sliders, and cam disks on various equipment. .

4. Instructions for using inlaid bearings and sliders:

(1) The friction surfaces of the inlaid bearings and sliders have been coated with a layer of special grease before leaving the factory. Be sure not to dirty the friction table during installation. Do not wipe the grease off! ! ! If it is wiped off, please use lithium molybdenum disulfide grease instead and re-apply it. However, it must be run at low speed for a period of time before trial operation before it can operate normally. When using large-load equipment, special grease must be purchased from the seller and re-applied. .

(2) When installing inlaid bearings, a certain sliding clearance must be ensured to prevent jamming and wear of bearings and parts.

(3) When installing an inlaid bearing, ensure that the shaft diameter that rubs against it has good cylindricity so that it has a sufficient contact area with the bearing. Otherwise, the service life of the bearing will be seriously affected or the bearing will be damaged immediately.

5. Factory specifications of inlaid bearings and sliders:

This product is widely used in equipment matching in many industries, so it is difficult to unify the specifications. Our company mainly undertakes inlaid bearings and sliders of various sizes and shapes and materials in various sizes according to user requirements. Users can provide drawings for processing, or they can provide valid information and working conditions for our company to design, manufacture and supply. Welcome to contact us by letter for negotiation.