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An introduction to the types of bearings, as well as the areas of application of the various bearings and the related scope

An introduction to the types of bearings, as well as the areas of application of the various bearings and the related scope

August 08 , 2023 0

Tapered Roller Bearings

Tapered roller bearings are one of the most used types of bearings and are mainly used in large cold and hot rolling and other heavy machines. Tapered roller bearings consist of an outer ring, an inner ring and a set of tapered rollers, of which the inner and outer rings

can be separated. Tapered roller bearings, the outer ring raceway cone angle between 10 ° ~ 19 °, can simultaneously withstand the joint load. At the same time, single row tapered roller bearings can be adjusted clearance size. Tapered roller bearings have larger radial

dimensions, poorer vibration damping capacity, low life at high speeds and louder sound.

Deep Groove Ball Bearings

Deep groove ball bearing is a kind of ball bearing with transverse groove shape, each collar has a continuous groove type raceway, suitable for bearing radial load and certain axial load. It is suitable for automobiles, tractors, machine tools, motors, pumps, agricultural

machinery, textile machinery and other applications. Deep groove ball bearings have the advantages of small coefficient of friction, high limiting speed, high precision, low price, etc. They are the preferred type of bearings for user selection.

Needle Roller Bearings

Needle roller bearings are a kind of bearings with the same inner diameter when roller bearings, outer diameter is less than or equal to 5mm. It is characterized by curved roller bearings, equipped with thin and long roller bearings, the diameter of the least, suitable for

occasions with less space. Needle roller bearings can be reduced in size and can accept large radial loadsNo inner ring bearings with large radial load carrying capacity. Needle roller bearings are commonly used in support constructions where axial mounting

specifications are limited.

Cylindrical Roller Bearings

Cylindrical roller bearings are a kind of inner ring, outer ring can be separated from the structure, mainly bear radial load, suitable for bearing heavy loads and shock load. The bearing roller usually by a bearing ring of two retaining edge guide, keep frame roller and

guide ring constitute a combination of parts, can be separated from the other bearing ring. This type of bearing installation, disassembly is more convenient, especially when the requirements of the inner and outer ring and shaft, shell are interference fit more show

the advantages. This type of bearing is usually only used to bear radial load, only the inner and outer ring with a single row of bearings can withstand a small fixed axial load or larger intermittent axial load.

Thrust Ball Bearings

A thrust ball bearing is a bearing that can withstand thrust loads and consists of a washer-like collar with ball-rolling raceway grooves. It is categorized into two types: flat-bottomed cushion type and self-aligning spherical cushion type, which can withstand axial loads

but not radial loads. Thrust ball bearings have self-aligning performance, which can eliminate the influence of installation error. It is mainly used in machine tool spindle, vertical lathe rotary table, automobile steering mechanism and other fields. Thrust ball bearings

must work with a certain axial load to avoid the steel balls sliding in the raceway, so its limiting speed is low.

Self-Aligning Ball Bearings

Spherical ball bearings are a kind of bearings with self-aligning performance, the outer ring raceway surface is spherical, suitable for heavy loads, shock loads and other situations. Spherical roller bearings can withstand radial loads and axial loads in both directions,

and bearings with tapered bore inner rings can be mounted directly. The cage uses steel plate stamping cage, polyamide molding cage and copper alloy turning cage. Self-aligning ball bearings have higher speed, self-aligning function, but the rigidity is poor, impact

resistance and vibration resistance is poor. The common self-aligning ball bearing is double row self-aligning ball bearing, there is a large spherical groove outer ring, a double groove inner ring, two rows of steel ball and keep frame composition.

Spherical Roller Bearings

Spherical roller bearings are bearings with two rows of rollers that can withstand radial loads and have axial loads in either direction. Its outer ring raceway is spherical, can compensate for coaxiality error. These bearings are suitable for heavy loads or vibration loads,

but can not withstand pure axial load. In addition to withstand axial load, but also can withstand double action and radial load. This type of bearing structure principle and characteristics and self-aligning ball bearings are the same, can limit the axial displacement of

the shaft or shell in the bearing axial clearance range. Spherical roller bearings are the main use of paper making machinery, speed reducer device, railroad vehicles, woodworking machinery and other industrial gear box seat, rolling mill gear box seat, rolling mill

rollers, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industrial speed reducer, vertical housed spherical roller bearings.

Miniature Bearings

Miniature bearings are bearings with a nominal outside diameter size range of 26mm or less, and are a type of bearings categorized by outside diameter size. Compared with small bearings, miniature bearings have a smaller outside diameter size and are suitable for

precision machinery, electronic instruments and other fields. The size range of miniature bearings is narrower, but with high precision and good reliability, so they are widely used in high-tech fields. In addition, miniature bearings are characterized by small size, light

weight and long life, so they are widely used in modern industry.

Angular Contact Ball Bearings

Angular contact ball bearings are a kind of bearings suitable for bearing compound loads, featuring high speed, high precision, low noise and vibration, and can simultaneously withstand the characteristics of joint loads. Its inner and outer ring have raceway, can along

bearing axial for relative displacement. Contact angle for radial plane ball and raceway contact point line and bearing axis of vertical line angle. Angular contact ball bearing collar and ball mutual contact angle, standardized contact angle for 15 °, 30 ° and 40 °, the

larger the contact angle axial load level is also the larger, the smaller the contact angle is more beneficial to high-speed operation. Single row bearings can only withstand a direction of the axial load, in the bear radial load, will cause additional axial force. Pairs of

duplex mounting can make a pair of bearing outer ring opposite, that is, the wide end face wide end face, narrow end face narrow end face.

Thrust Roller Bearings

Thrust roller bearings are a kind of bearings that can withstand double loads with axial load as the main bearing, with lower friction factor, higher speed, and with self-aligning performance. It can withstand axial load, but shall not exceed 55% of the axial load. Thrust

roller bearings have a lower friction factor, a higher rotation speed and the ability to be centered. The main applications of thrust roller bearings are hydroelectric generators and crane hooks.

Roller Bearings

Roller bearings are a kind of bearings divided according to the type of rollers, including cylindrical roller bearings, needle roller bearings, tapered roller bearings, spherical roller bearings and roller rows. Among them, cylindrical roller bearings roller for cylinder, length

and diameter ratio is less than or equal to 3; Needle roller bearings needle length and diameter ratio is greater than 3, but the diameter is less than or equal to 5mm; Tapered roller bearings roller body is tapered roller; Spherical roller bearings raceway is spherical

shaped, can adapt to the angular deviation between the axis of the two races and angular movement of the bearings. Roller bearings according to its work can be centered, divided into spherical bearings, non-aligning bearings and roller rows and other types.

Thrust Bearings

Thrust bearings are a kind of rolling bearings mainly used to bear axial load, its nominal contact angle is greater than 45 to 90, according to the nominal contact angle is divided into thrust angular contact bearings and axial contact bearings. Thrust bearings are mainly

used to withstand large axial loads, such as mechanical transmission in the transmission shaft, transmission device. The nominal contact angle of thrust bearings is between 45 degrees and 90 degrees, which is a more common type of bearing.