The structure of rolling bearings, what is the function of rolling bearings? What are the parts?

Mina Electromechanical! Mina Electromechanical is a leading and selling world-renowned brand bearing company. Specializing in the import bearings of world-renowned brands.

Shanghai Mina Electromechanical is located in Shanghai, the company maintains a good bearing import business, with the advantages of independent import sales, has become a relatively large and influential import bearing sales center in Shanghai, and has become a long-term leader in dozens of large state-owned enterprises. Since its establishment, the company has relied on superior geographical advantages, based on the three norths, radiating the whole country, forming a stable sales network, providing high-quality bearings for many enterprises!

The basic structure of the bearing: inner ring, outer ring, rolling element, cage.

Bearings are divided into the following according to the type of rolling element:

1. Ball bearings - rolling elements are balls, such as: deep groove ball bearings, self-aligning ball bearings, angular contact ball bearings, and outer spherical bearings.

2. Cylindrical roller bearings - the rolling elements are cylindrical rollers, such as: cylindrical roller bearings, reasoning cylindrical roller bearings, roller bearings, and tandem bearings.

3. Drum roller bearing - The rolling element is a drum roller, such as a spherical roller bearing.

4. Tapered roller bearings - the rolling elements are tapered rollers, such as: tapered roller bearings, thrust tapered roller bearings.

5. Rolling silver needle bearing - the rolling element is a needle roller, and the ratio of the length to the diameter of the needle is greater than 3, but the diameter is less than or equal to 5mm.

Cage. A bearing cage is a bearing part that partially encloses and moves all or part of the rolling elements in order to isolate the rolling elements, and usually to guide and hold them in the bearing.

The main use of the cage is to seep the boring way:

1. Separate the rolling elements to reduce the frictional heat generated by the bearing.

2. Evenly spaced the rolling elements to optimize the load distribution.

3. Guide the rolling elements in the no-load zone of the bearing.

The main types of cages are:

1. Stamped metal cage.

Stamped metal cages (sheet steel or brass sheets) are lightweight and can withstand high temperatures.

2. Machined metal cage.

Machined metal cages are made of brass, steel, or light alloys. It can withstand high speeds, high temperatures, high acceleration and high vibrations.

Support the rotating shaft and the parts on the shaft, and maintain the normal working position and rotation accuracy of the shaft, the rolling bearing is easy to use and maintain, reliable to work, good starting performance, and has a high bearing capacity at moderate speed. Compared with plain bearings, rolling bearings have larger radial dimensions, poor vibration damping ability, lower life at high speeds, and larger sound.

Structure of rolling bearings:

1. The outer ring is installed in the bearing seat bore, and generally does not rotate.

2. Inner ring - installed on the journal and rotates with the shaft.

3. Rolling element - the core element of the rolling bearing.

4. Cage - evenly separate the rolling elements to avoid friction.

Rolling bearing is a precision mechanical component that changes the sliding friction between the running shaft and the shaft seat into rolling friction, thereby reducing friction loss. The rolling bearing is generally composed of four parts: the inner ring, the outer ring, the rolling element and the cage, and the function of the inner ring is to cooperate with the shaft and rotate together with the shaft; The outer ring is to match with the bearing seat and play a supporting role; The rolling element is evenly distributed between the inner ring and the outer ring with the help of the cage, and its shape, size and number directly affect the performance and life of the rolling bearing; The cage can evenly distribute the rolling elements and guide the rolling elements to rotate for lubrication.

Rolling bearings are generally composed of four parts: rolling elements (balls, rollers, needle rollers), inner rings, outer rings, and cages. But now some have added lubrication to prevent rust. The test questions are rolling elements, inner rings, outer rings, and cages.

The rolling bearing consists of four parts: the outer ring, the inner ring, the rolling element and the cage. To put it simply, as long as there is an outer ring, an inner ring, and a rolling element, it can be defined as a rolling bearing. According to the shape of the rolling elements, rolling bearings are divided into two categories: ball bearings and roller bearings.

Strictly speaking, it is composed of six parts: outer ring, inner ring, rolling element, cage, seal and lubricating oil.

Bearing is an important component in contemporary machinery and equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. According to the different friction properties of moving elements, bearings can be divided into two categories: rolling bearings and sliding bearings.

Among them, rolling bearings have been standardized and serialized, but compared with sliding bearings, its radial size, vibration and noise are larger, and the highest is also higher.

Due to the different uses and working conditions, the structure of rolling bearings varies a lot, but the basic structure is composed of four parts: inner ring, outer ring, rolling element (steel ball or roller) and cage. (1) Inner ring (also known as inner sleeve or inner ring). Usually fixed to the journal, the inner ring rotates with the shaft.

There are grooves on the outer surface of the inner ring for the steel balls or rollers to roll, which are called inner grooves or inner raceways. (2) Outer ring (also known as coat or outer ring). It is usually fixed on the bearing seat or the housing of the machine and plays the role of supporting the rolling elements.

There are also grooves on the inner surface of the outer ring for the steel balls or rollers to roll, which are called inner grooves or inner raceways. (3) Rolling elements (steel balls or rollers). Each set of bearings is equipped with one or several sets of rolling elements, which are installed between the inner ring and the outer ring, and play the role of rolling each transmission force.

Rolling elements are load-bearing parts, and their shape, size and number determine the load-bearing capacity and the performance of each high-speed operation. (4) Cage (also known as retainer or isolator). The rolling elements in the bearing are evenly separated from each other so that each rolling element rolls normally between the inner and outer rings.

In addition, the cage has the functions of guiding the movement of the rolling elements, improving the lubrication conditions inside the bearing, and preventing the rolling elements from falling off. In thrust bearings, the ring that fits with the shaft is called the shaft ring, and the ring that fits with the bearing seat or machine housing is called the seat ring, and the shaft ring and the housing ring are collectively referred to as washers. In addition to the above four parts, there are other parts that match the bearings of various structures.

For example, rivets, dust caps, seals, stop gaskets, retaining rings and adapter sleeves.

Common bearing classification and selection methods, rolling bearing composition and application.

The structure of a rolling bearing is generally composed of four parts: (inner ring), (outer ring), (rolling element), and (cage).

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.

Kiss! Hello, happy to answer your <>

The pro-rolling bearing is generally composed of four parts: the inner ring, the outer ring, the rolling element and the cage, and the function of the inner ring is to cooperate with the shaft and rotate with the shaft; The outer ring is to match with the bearing seat and play a supporting role; The rolling element is evenly distributed between the inner ring and the outer ring with the help of the cage, and its shape, size and number directly affect the performance and life of the rolling bearing; The cage can evenly distribute the rolling elements and guide the rolling elements to rotate for lubrication. Hope mine can help you <>

Do you have any other questions?

As for rolling bearings, it is a kind of precision mechanical element that turns sliding friction into rolling friction so that friction loss can be reduced. Rolling bearings are mainly composed of four parts, which are the inner ring, the outer ring, the rolling element and the cage. Each part is very important and has its own role, such as the inner ring mainly cooperates with the outer ring to play a supporting role, the rolling element mainly affects the performance of the rolling bearing, and the cage is mainly to prevent the falling off of the rolling element and so on.

What I bring to you today is the classification of rolling bearings.

1.According to the type of rolling bearing junction and permeability structure: the bearing is divided into the following according to the different load directions or nominal contact angles that it can bear

1) Radial bearings--- mainly used for rolling bearings bearing radial loads, with nominal contact angles from 0 to 45. According to the nominal contact angle, it is divided into: radial contact bearing--- radial bearing with 0 nominal contact angle

Radial angular contact bearings --- radial bearings with nominal contact angles greater than 0 to 45.

2) Thrust bearings--- mainly used for rolling bearings bearing axial loads, with nominal contact angles greater than 45 to 90. According to the nominal contact angle, it is divided into: axial contact bearing--- thrust bearing with a nominal contact angle of 90:

Thrust angular contact bearings --- thrust bearings with nominal contact angles greater than 45 but less than 90.

2.According to the number of rolling elements, bearings are divided into: (1) single row bearings--- bearings with one row of rolling elements; (2) Double-row bearings--- bearings with two rows of rolling elements; (3) Multi-row bearings--- bearings with more than two rows of rolling elements, such as three-row and four-row bearings.

3.According to whether the bearing can be adjusted during its operation, it is divided into: (1) the spherical bearing--- the raceway is spherical, and can adapt to the angular deviation and angular movement between the axial lines of the two raceways; (2) Non-aligning bearings (rigid bearings) -- bearings that can resist the axial angular deviation between raceways.

The main advantages of rolling bearings are twofold, the first is significant energy saving, because the rolling friction is less than the sliding friction, so it can reduce the functional consumption of friction resistance to achieve energy saving effect, such as small mechanical applications can save about 30% of electricity, medium and large power saving can reach about 20%, very energy-saving. The second advantage is that the maintenance is very convenient and the quality is very reliable. At the same time, rolling bearings have three significant characteristics, which are specialization, advancement and automation.

You can get it for free

1. Integral radial sliding bearing (bearing seat, integral bushing, oil hole, threaded hole), 2. Split radial sliding bearing (bearing seat, bearing cover, stud stud, threaded hole, oil hole, oil groove, split bearing).

3. Thrust sliding bearing (bearing seat, thrust journal).

Thrust sliding bearings are divided into three types: hollow type, single ring type and multi-ring type, and are usually used in high-speed and heavy-duty occasions.

Sliding friction occurs when plain bearings work; The magnitude of sliding friction mainly depends on the manufacturing accuracy; The friction force of the plain bearing mainly depends on the material of the sliding surface of the bearing. The general working surface of the sliding bearing has the function of self-lubrication; Plain bearings are divided into non-metallic plain bearings and metal plain bearings according to the material.

Non-metallic sliding bearings are mainly plastic bearings, which are generally made of engineering plastics with good performance; More professional manufacturers generally have the self-lubricating modification technology of engineering plastics, through fibers, special lubricants, glass beads, etc., the engineering plastics are self-lubricating and enhanced to achieve certain performance, and then the modified plastics are processed into self-lubricating plastic bearings by injection molding.

At the beginning of the 21st century, metal sliding bearings are the most used three-layer composite bearings, which are generally based on carbon steel plates, and a layer of spherical copper powder is first sintered on the steel plate through sintering technology, and then a layer of PTFE lubricant is sintered on the copper powder layer; Among them, the main function of the middle layer of spherical copper powder is to enhance the bonding strength between the steel plate and PTFE, and of course, it also plays a certain role in bearing and lubrication during work.