What kind of device is a ball bearing, and how are the balls of the bearing manufactured?

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Ball bearing is a kind of rolling bearing, which installs a spherical alloy steel ball in the middle of the inner steel ring and the outer steel ring to reduce the friction in the process of power transmission and improve the transmission efficiency of mechanical power in a rolling way. Ball bearings cannot withstand large heavy loads and are more common in light industrial machinery. Ball bearings are also called ball bearings.

Common equipment using ball bearings includes: motor drive shafts, transmission parts of light (civil) motor vehicles, machining equipment, mechanical transmission assemblies of factory production lines, etc.

Ball bearings mainly contain four basic components: balls and inner rings

ring), outer ring (outer

ring) with a retainer (cage

orretainer), as shown in the image. General industrial ball bearings meet the standard of AISI 52100, and the balls and rings are usually made of high-chromium steel with Rockwell hardness

c-scale

hardness) is about 61-65.

Ball bearings are generally used in equipment with low load mechanical transmissions. Because the bearing area of ball bearings is small, it is easy to cause serious mechanical damage in the case of high-speed operation, so needle roller bearings are often used in heavy-duty mechanical transmission to increase the bearing surface, improve the mechanical transmission efficiency, and reduce mechanical damage.

Ball bearings change the friction mode of the bearing, and the rolling friction is adopted, which is more effective in reducing the friction between the bearing surfaces, improving the service life of the fan bearing, and thus extending the service life of the radiator. The disadvantage is that the process is more complex, the cost is higher, and the operating noise is also higher.

The spherical alloy steel ball is installed in the middle of the inner steel ring and the outer steel ring to reduce the friction in the process of power transmission and improve the transmission efficiency of mechanical power by rolling mode.

Production process: 1Embryo making: a variety of spherical blanks are made by various process methods.

2.Coarse grinding: put the spherical blank into the grinding disc with the same concentric ring with multiple dimensions and the triangular grinding groove with multiple channels matching the size of the blank, add oil and abrasive, and the upper grinding disc rotates and the lower grinding disc does not move.

The above ball grinding machine is called a coarse grinding machine. Depending on the need, the coarse grinding can have more than one pass.

3.Cleaning: Wash the oil and coarse abrasive residues stuck to the surface of the ball every time the coarse grinding is completed.

4.Fine grinding: The rough grinding blank is put into the fine grinding machine, and low-viscosity oil and fine abrasives are added to grind to a standard size.

5.Polishing: The process is similar to coarse grinding and fine grinding.

Explanation of ball bearing

A bearing in which the shaft rotates on a hardened ball of balanced steel that rolls smoothly in the bearing race, causing the sliding friction to become rolling friction.

Word decomposition Explanation of balls A ball-shaped brigade part made of steel. Also called the town old "steel ball" Explanation of the bearing Supporting journals, trunnions, pivots, stub shafts or other components, and making the shaft and other machine parts in which the shaft turns, oscillates or slides, explains in detail the mechanism of the supporting shaft. The shaft can be rotated on the bearing, which is divided into several types, such as sliding bearings and rolling bearings.

Rolling bearings are generally composed of four parts: inner ring, outer ring, rolling element and cage, and lubricant has a great impact on the hail and reliability of rolling bearings, so sometimes lubricant is also used as the fifth largest part of rolling bearings.

Function: 1. The inner ring usually fits tightly with the shaft and rotates with the shaft.

2. The outer ring is usually matched with the bearing housing hole or the housing of mechanical parts to play a supporting role. However, in some applications, there are also outer rings that rotate, inner rings that are fixed, or both inner and outer rings that rotate.

3. The rolling elements are evenly arranged between the inner shed ring and the outer ring with the help of the cage. Its shape, size and number directly affect the bearing capacity and performance of the shaft source wheel bearing.

4. The cage evenly separates the rolling elements, guides the rolling elements to move on the correct track, and improves the internal load distribution and lubrication performance of the bearing.

A rolling bearing is a mechanical element used to withstand axial loads, radial loads and torques. It is composed of inner and outer rails, rolling elements, cages and seals, etc. The most common types of rolling bearings include deep groove ball bearings, tapered roller bearings, shaft forward bearing spherical tapered bearings, and spherical roller bearings.

Deep groove ball bearings are composed of an inner ring, an outer ring, a cage and a rolling element, and the rolling pin is usually made of steel balls. One of the ring parts in the inner and outer rings has a spherical shape, which allows it to withstand large axial and radial loads under various conditions, and is often used in mechanical equipment such as motors, automobiles, and motorcycles.

Tapered roller bearings are composed of an inner ring, an outer ring, a cage and tapered rollers, in which the taper of the inner ring and the outer ring intersect at one point, which is commonly used in automobiles and heavy machinery and equipment, and can withstand large radial and axial loads.

The outer spherical taper bearing is also composed of an inner ring, an outer ring, a cage and a tapered roller, the inner ring cone is spherical, and the tapered raceway on the outer ring is cooperative, which is suitable for high-speed equipment such as aviation and rocket engines.

Spherical roller bearings are composed of inner rings, outer rings, cages and tapered rollers, and the rollers are at a certain angle to the rolling deficit pavement surface, which can bear large radial loads and axial loads, and are often used in textile machinery, paper machinery and heavy machinery and equipment.

In short, rolling bearings have the advantages of simple structure, strong load bearing capacity and long service life, and are important components widely used in various mechanical equipment.