News

• 08

  2016.11

  Basic Rules For Selecting And Handling of Bearings

  NOTES ON SELECTING The efficiency of thin type bearings can be greatly affected by the precision of shaft and housing seats . The accuracy of the surrounding structure must be such that it will not adversely affect the operation of the bearings . NOTES ON HANDLING The actual assembly area should be kept free from dust as any contamination has a detrimental effect on the operation and life of rolling bear...
• 12

  2016.10

  Brief Knowledge of Cylindrical Roller Bearing

  Cylindrical Roller Bearing: Rolling body is the cylindrical roller. The inner structure of cylindrical roller bearings is arranged the roller in parallel. There are isolation blocks between rollers, which can prevent the roller slanting or the friction between the rollers, and effectively prevent the increase of rotational torque. Cylindrical roller bearing belongs to separation type bearing, it is very convenient to instal...
• 06

  2016.09

  How To Determine Whether Your Bearings Need To Be Replaced

  To determine whether the removed bearings can be reused, after cleaning, we need to carefully check the raceway surface , rolling surface and the wear pattern of the bearing cage. If the bearing has the following defect , it can’t be used anymore. 1.Any of the out ring , inner ring , rolling element and cage have crack or notch. 2.There is obvious bruise or rust on raceway surface , bearing rib , or rolling element....
• 05

  2016.08

  Using the heart ball bearings

  To the heart ball bearing is a kind of general design, can bear in the movement of the different sizes of the load.One of the standard to the heart ball bearing in a deep groove structure, can bear coming from any upward radial load and smaller axial load. With the maximum load capacity centripetal ball bearing main radial load.This type of rolling bearing in a variety of sizes are available. Different seal configuration can...
• 04

  2016.07

  Bearing Handling

  Since rolling bearings are high precision machine parts , they must be handle accordingly . Even if high quality bearings are used , their expected performance cannot be achieved if they are not handled properly . The main precautions to be observed are as follows : 1 , keep bearings and surrounding area clean 2,careful handling 3, Use proper tools 4, Prevent corrosion
• 17

  2016.06

  Installation of Tapered Roller Bearing

  ZZ Bearing (Shanghai) Co., Ltd would like to teach you some knowledge about the installation of tapered roller bearing,hope to bring you some help. Various types and structures tapered roller bearings have similar installation method.We will take the four row tapered roller bearing as a example to introduce the installation of tapered roller bearing. First,install the tapered roller bearing into the bearing box,then install th...
• 29

  2016.05

  The Introduction of Tapered Roller Bearing

  Tapered roller bearings are generally used to support combined load mainly consisting of radial load. The bearing capacity depends on the angle of outer ring raceway, the larger the Angle, the greater the carrying capacity. Their cups are separable and easy to assembly. According to the columns of the rolling body, it can be divided into single row , double row, and four-row tapered roller bearing. Tapered roller bearings...
• 29

  2016.04

  How to improve the bearing service life and make the bearing more durable?

  The life of the bearing includes Noise life, wear-life, Grease's lifetime and Rolling fatigue life General bearing problems are due to the careless of installation, using and lubrication,Foreign invaders that are invading from the outside,the study on the thermal influence of the shaft and shell is not sufficient. In order to improve the bearing service life 1.According to the environment,select the app...
• 21

  2016.03

  Characteristics and Application of Tapered Roller Bearings

  Characteristics and Application of Tapered Roller Bearings Small one-way thrust tapered roller bearing are almost completely used in steering knuckle of commercial vehicles. This kind of bearing is usually full of rollers and is fixed with thin steel plate cover. Most are wear resistant, oil resistant nitrile butadiene rubber (NBR) friction seals. Use multi purpose grease for lifetime lubrication without maintenance. There...
• 24

  2016.02

  The Brief introduction of Spherical roller bearing

  1.Spherical roller bearing, the outer ring raceway is part of the sphere, the bearing has internal tuning performance to adapt the relative deviation of the shaft and the seat hole. 2.For this bearing , it can Bear heavy radial load and impact load, at the same time , it can also undertake a certain two-way axial load. 3.This type of bearing can limit the axial displacement of the shaft or housing in the axial clearanc...
• 23

  2016.01

  Fixed-End Bearing and Free end bearing

  The mechanical type is different, the use condition of the bearing will be different, and the performance requirements of the bearing are different, but generally, there are not less than two bearings used on one shaft. Moreover, in order to facilitate axial positioning, a bearing is mostly used as a fixed end bearing and the rest is used as a free end bearing Fixed end bearing is used for bearing axial positioning and...
• 24

  2015.12

  How to Dismounting of Bearings with Cylindrical Bores

  If the mounting design allows space to press out the inner ring , this is an easy and fast method . In this case , the withdrawal force should be imposed only on the inner ring . Withdrawal tools are often used . In both cases , the claws of the tools must substantially engage the face of the inner ring:therefore , it is advisable to consider the size of the shaft shoulder or to cut grooves in the shoulder to accommodate th...
• 22

  2015.11

  Application and Related Knowledge of Bearing

  Bearing is an important part of modern machinery and equipment. Its main function is to support the rotating body of the machine, reduce the friction coefficient in the process of movement, and ensure its rotation accuracy. Bearings can be divided into a variety of types, rolling bearings, radial bearings, ball bearings, deep groove ball bearings,thrust bearings and so on. Usually we think that the function of the bearing ...
• 20

  2015.10

  The Characteristics of Thrust Ball Bearing

  In general,thrust ball bearings has the following characteristics: 1.Thrust ball bearing is separable bearing, the conact angle is 90 °, it can be installed separately , and can only endure axial load. 2.Thrust ball bearing has low limit speed. The steel ball and centrifugal force push the outside of the bearing race , it’s easy to scratch, and not suitable for high-speed operation. 3.The unilateral bearing and on...
• 16

  2015.10

  Purposes of Roller Bearing Lubrication

  The main purposes of lubrication are to reduce friction and wear inside the bearings that may cause premature failure . The effects of lubrication may be briefly explained as follows : 1.Reduction of friction and wear Direc metallic contact between the bearing rings , rolling elements and cage,which are the basic components of a bearing , is prevented by an oil film which reduces the friction and wear in the contact areas ...
• 05

  2015.09

  What is Thrust Ball Bearing?

  Thrust ball bearings are designed to bear thrust loads at high speeds. They are made of washers with raceway grooves.so the thrust ball bearing is divided into two types: flat seat cushion type and self-aligning spherical cushion type. In addition, this kind of bearing can bear axial load, but can not bear radial load. So how much do you know about the performance characteristics and advantages of thrust ball bearings?Shanghai S...
• 14

  2015.08

  The Brief Introduction of Angular Contact Ball Bearing

  Angular contact ball bearing, there is angular between bearing race and balls, the standard contact angle is 15°, 30°and 40°. The larger the contact Angle, the greater the axial load capacity. The smaller the contact Angle, the more conducive to high-speed rotation. Single row angular contact ball bearing can endure radial load and unidirectional axial load.DB, DF assembly and double row angular contact ball bearing ca...
• 13

  2015.07

  How to choose the type of bearing

  Generally speaking, the steps of selecting bearings may be summarized as follows by ZZ Bearing (Shanghai) Co., Ltd: 1. According to the bearing working conditions (including the type of load direction and load, speed, lubrication way and the orientation of coaxial degree requirements, Locate or not locate,installation and maintenance, environment temperature, etc.), choose the basic type, tolerance grade, and bearing clearanc...
• 04

  2015.06

  Why do we need to seal spherical roller bearings?

  Seal is like the bearing skin. without seal, spherical roller bearings life will be greatly reduced. ZZ Bearing (Shanghai) Co., Ltd will teach you some knowledge about sealed spherical roller bearings Sealing device has two main function: ① to prevent the outside dirt, such as metal particles, dust, dirt, moisture, sour gas and others; ② to prevent the lubricant inside the bearing overflow, in order to ensure good lubrication...
• 09

  2015.05

  The Classification of Rolling Bearings

  1.Classify by bearing load direction 1) Radial bearing---mainly used to bear radial load, nominal contact angle range from 0 to 45. 2) Thrust bearing---mainly used to bear axial load, nominal contact angle range orer 45 to 90. 2.Classify by rolling element 1) Ball bearing--- the rolling element is ball. 2) Roller bearing--- the rolling element is roller. According to difference roller , it can be divided i...
• 07

  2015.04

  Cylindrical roller bearing NU 10/600 N2MA

  By last month,our ZZ Bearing (Shanghai) Co., Ltd exported cylindrical roller bearings ZZ NU 10/600 N2MA to Guatemala,customer has already received our bearings,and also give us a feedback,they informed our bearings are so good as well as the best price,they will make a list to purchase more roller bearings from our company as they have in faith with us,the above you could check the roller bearings pictures that we sent to our...
• 06

  2015.03

  What is the difference of Ball Bearings and Roller Bearings ?

  Do you know the difference between Ball Bearings and Roller Bearings , today , ZZ bearing will bring to learn more about this content . Ball bearings have some features : high speed limit, impatience impact, not suitable for heavy loads .Widely used in transmission, instrumentation, motors, household appliances, internal combustion engines, transport vehicles, agricultural machinery, construction machinery, constructio...
• 03

  2015.02

  Brief Knowledge about Spherical Roller Bearings

  Spherical roller bearings are widely used in reducer, railway vehicle axles, rolling mill gearbox bearing, rolling mill rollers, crusher, all kinds of industrial reducer, Hereby ZZ Bearing (Shanghai) Co., Ltd introduce some brief knowledge, hope to help you learn more about Spherical roller bearings. Spherical roller bearings consist of an inner ring with two raceways inclined at an angle to the bearing axis, an outer ring with...
• 02

  2015.01

  How To Extend The Service Life Of Roller Bearings

  How to use Sphercial Roller Bearing to extend working life , in order to bring you more production efficiency , as professional roller bearing manufacturer - ZZ Bearing (Shanghai) Co., Ltd will teach some good solutions for you . Hope to bring you help . Checking the installation of roller bearings It will directly effect bearing precision , working life and performance whether accurately install roller bearings .Hence , you ...