News

• 10

  2021.06

  Lubrication Mode and Installation Steps of Spindle Bearing

  Introduction to the functions of machine tool spindle bearings Machine tool spindle bearing is the spindle bearing of precision machine tools and similar equipment, which can guarantee the working accuracy and performance of precision machine tools. The correct configuration of spindle bearings refers to the combination of bearing types and the arrangement of front and rear bearings. The different configuration dete...
• 09

  2021.06

  Detect The Tightness Of Bearing And Shaft Shoulder

  Testing method for tightness of rolling bearing and shaft shoulder Generally speaking, rolling bearings with tight fit interference installation must be close to the shaft shoulder. So how to test it? According to our company's knowledge of bearings, let's share the detection methods of the tightness of rolling bearings and shaft shoulders. I hope that it will be helpful to everyone's bearing install...
• 07

  2021.06

  Bearing types and applications of ZZ bearings

  What are the types of bearings? There are different types of bearings specifically designed for applications depending on expected loads and the possibility of temperature fluctuations, contaminant exposure, and pressure. Today, ZZ bearing share some common bearing types application. T urbine bearings and slewing rings For example, look at wind turbine bearings and slewing rings. These componen...
• 03

  2021.06

  Installation Procedure of Integral Eccentric Bearing

  The overall eccentric bearing is also known as eccentric bearing, refers to is a very useful bearing type, this bearing mainly includes outer ring, inner ring, rolling body flower basket, rolling body, eccentric bearing simple structure, easy to use, do not need an eccentric shaft can achieve eccentric function, reduce the manufacturing cost of the eccentric mechanism. The installation of the overall eccentric bearing...
• 02

  2021.06

  Precautions For ZZ Bearing Installation

  Whether the ZZ bearing is installed correctly will directly affect the accuracy, life and performance of the bearing during use. Cleaning preparation before installation (1) When cleaning a large number of ZZ bearings, first use hot machine oil at a temperature of 90 ～ 100℃ to melt the encapsulating oil. At the same time, use a seamless and chip-free tool to dig out all the old oil, and then blanch it for ...
• 31

  2021.05

  Why radial play and tolerance are not one and the same

  During the Second World War, in a munitions factory in Scotland, a little-known man by the name of Stanley Parker developed the concept of true position, or what we know today as Geometric Dimensioning & Tolerancing (GD&T). Parker noticed that even though some of the functional parts being manufactured for torpedoes were being rejected after inspection, they were still being sent on to production. Upon closer inspection,...
• 27

  2021.05

  Causes And Analysis of Bearing Steel Ball Defect

  Bearing steel balls is an important part of the bearing structure. If there are defects in the steel ball, it will directly affect the performance of the bearing. Reasons for the defect of bearing steel ball blank （ 1 ） Defects in raw materials, such as material cracks; （ 2 ） the heating temperature is high and the speed is fast, and the temperature difference between inside and outside the forgi...
• 26

  2021.05

  Measures To Reduce ZZ Bearing Failure

  1. Check the new bearings one by one The company uses new bearing shafts instead of overhauled bearings. There are not many quality problems in the bearings themselves, but they cannot be ruled out. The new bearings to be installed are inspected one by one, mainly to check the inner and outer rings, rollers, cages and rivets of the bearing for no bumps, deformation, looseness, rust and other defects. Once the defe...
• 24

  2021.05

  Troubleshooting of ZZ Bearings

  What are the causes of ZZ bearing damage? There are many reasons for ZZ bearing damage. One of the common reasons is that the bearing is dirty and not clean. The typical dirt immersion period is during the initial installation process and during maintenance. Dirt leaks into the ZZ bearing housing through the air, or even through the use of dirty lubricant, enters the ZZ bearing.For example, hard and rough fo...
• 20

  2021.05

  The Relationship Between Bearing Vibration and Noise

  What is bearing noise? Bearing noise is a problem often encountered in the process of manufacturing, testing and use of a motor. It is a very unscientific approach to simply talk about the problem of bearing. The problem should be analyzed and solved in accordance with the principle of correlation and from the perspective of coordination. Rolling bearings themselves usually do not produce noise. What is considere...
• 19

  2021.05

  Causes Of Common Failures Of ZZ Motor Bearings

  Bearing, as one of the important parts of the motor, its performance will directly affect the normal operation of the locomotive. When the bearing is broken, damaged and sintered, it will seriously affect the driving safety of the locomotive. Therefore, the motor bearing is also very important for the locomotive. Based on the understanding of motor bearings, share common causes of motor bearings and corresponding control...
• 13

  2021.05

  The Role of the Bearings Bushing

  The role of each part of the bearing The bearing is equivalent to the outer ring of the sliding bearing, the sleeve is integral, and the relative shaft is moving, and the bearing bush has some pieces, and the relative shaft is rotating. Journal: The part of a shaft that is supported by a bearing Sleeve: A sleeve formed in a complete cylindrical shape Plastic sleeve specifications: POM polyformaldehyde p...
• 12

  2021.05

  Reduce The Influence Of External Factors On ZZ Bearings

  　　 1. The impact of vibration on ZZ bearings. 　　In normal use, vibration is very sensitive to bearing damage, peeling, indentation, rust, cracks, wear, etc. will be reflected in the bearing vibration measurement. Therefore, by using a special bearing vibration measuring device (frequency analyzer, etc.), the magnitude of the vibration can be measured, and the specific abnormal situation cannot be inferred thro...
• 10

  2021.05

  Common bearing types and applications

  There are different types of bearings specifically designed for applications depending on expected loads and the possibility of temperature fluctuations, contaminant exposure, and pressure. Today , ZZ bearing share some common bearing types application . For example, look at wind turbine bearings and slewing rings. These components may be as large as 2 m in diameter and are often required to handle hundreds of tons. ...
• 06

  2021.05

  Spindle Double Row Cylindrical Rolling Bearing

  Double-row cylindrical roller bearings with tapered holes belong to linear contact bearings, whose bearing capacity and stiffness are higher than angular contact bearings with a point contact. They are often used in spindle systems of medium, large and heavy machine tools where the load is larger, the required stiffness is higher, and the speed is relatively not very high. 1. Selection of spindle rolling beari...
• 29

  2021.04

  Bearing Heat Treatment

  Bearing Heat Treatment The heat treatment process mainly depends on their own practice, the heat treatment process should be combined with furnace type, furnace loading, cooling medium, workpiece size, workpiece shape and workpiece technical requirements and other factors related. 1. The annealing Operation method: the steel heating to AC3 +30~50 degrees or AC1 +30~50 degrees or below the temperature of AC1 ...
• 28

  2021.04

  Several Methods Of ZZ Bearing Failure Judgment

  ZZ bearing fault diagnosis technology mainly includes vibration diagnosis technology, ferrograph diagnosis technology, temperature diagnosis technology, acoustic diagnosis technology, oil film resistance diagnosis technology and optical fiber monitoring and diagnosis technology, etc. Among them, vibration, iron shop and temperature diagnosis technology are used more. 1. Vibration diagnosis technology When the w...
• 26

  2021.04

  Bearings are popular used in heavy lifting gearboxes

  The hundreds of offshore drilling platforms operating along the world’s continental shelves are some of the most expensive structures on the planet – in addition to being some of the most remote and vulnerable. The main danger todrilling operations out at sea is large waves created by hurricanes and other storms. That’s why the jack-up oil rig is the most popular type of movable drilling platform, used in relatively...
• 22

  2021.04

  The Phenomenon of Early Bearing Damage

  The Phenomenon of Early Bearing Damage When bearings are in use, the early damage phenomenon is a common failure of bearings. Early damage of bearings also has many forms, such as improper bearing matching, improper installation and improper maintenance, which will cause early damage. 1.Damage caused by unqualified size, shape and position accuracy of the workpiece matched with the bearing If the shou...
• 21

  2021.04

  Causes Of Heating When ZZ Bearings Are Used

  The cause of overheating of imported ZZ bearings may be incorrect installation. The skewed installation will cause the balls not to roll in the correct position of the bearing raceway, and even cause larger ball end faces and the axial direction of the inner race and outer race stop of the ZZ bearing housing. Force, causing the bearing to overheat. There is another possibility that the measurement of the shaft d...
• 19

  2021.04

  Custom Miniature Thrust Ball Bearings Extend Life & Reduce Maintenance Costs in Screw Driving Spindles

  Application Custom Screw driving Spindles. The thrust bearings are located on shafts that are parallel to each other on 0.750” centerlines. The Problem The Customer had been purchasing a standard-sized miniature thrust bearing from a large bearing manufacturer for many years. The 3-piece bearing was being used in a fairly high volume (20 to 30 bearings per month) in the custom screw driving equipment and wa...
• 15

  2021.04

  Positioning Method of Bearing Ring

  1. Positioning of bearing inner ring When the bearing inner ring is installed on the shaft, the bearing position is generally fixed on one side by the shaft shoulder, while the other side is fixed with nuts, stop washers or spring ring. The dimensions of the contact part between the shaft shoulder and the axial fixing parts and the inner ring of the bearing can be determined according to the mounting dimensions of a...
• 14

  2021.04

  Common Damage to ZZ Bearing Cage

  What is the cage of the bearing? As an important component of the bearing, the cage has a very large use effect. During the bearing use, the cage often appears damaged, which will seriously affect the use effect of the bearing, and even cause the bearing to be completely damaged and unusable. According to our understanding, ZZ Bearing (Shanghai) Co., Ltd will share some common damages related to ZZ bearing cages. ...
• 12

  2021.04

  Key Bearing Selection Factors For Medical Equipment

  Bearings play a key role in a wide variety of medical equipment. From X-ray machines and oxygen compressors to small, handheld surgical instruments, it's important to find the right bearing for your specific design needs. Every application provides its own design challenges, but there are a few criteria that typically play a big role in bearing selection for medical equipment. Here are some key factors that play a...