News

• 18

  2020.08

  The Structure And Performance Of ZZ Bearing

  　　1. Thrust angular contact ball bearings in ZZ bearings 　　 The contact angle of thrust angular contact ball bearings is generally 60°. Commonly used thrust angular contact ball bearings are generally two-way thrust angular contact ball bearings, which are mainly used for precision machine tool spindles. They are generally used in conjunction with double row cylindrical roller bearings and can withstand two-...
• 17

  2020.08

  Fault Diagnosis Technology of Tapered Roller Bearing

  The fault diagnosis technology of tapered roller bearings 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. Among them, vibration, iron shop and temperature diagnosis technology are the most applied universal. 1. Vibration diag...
• 14

  2020.08

  ZZ Bearing Selection Precautions

  The types and sizes of ZZ rolling bearings are diverse. In order to make the mechanical device play the expected performance, it is very important to choose the most suitable bearing. In order to select a bearing, many factors need to be analyzed, and the procedures for selecting a bearing need to be studied and evaluated from various angles. There are no special specifications, but the general sequence is as follows...
• 13

  2020.08

  The Raw Materials for Ball Bearings

  Good quality bearings must based on High quality raw materials,ZZ Bearing (Shanghai) Co., Ltd has good control of bearings raw materials. Bearing in the role of periodic load, contact surface is very easy to attack fatigue damage, that is, the emergence of crack spalling, which is an important failure of the bearing situation.Therefore, in order to improve the service life of bearings, bearing steel must have a high contac...
• 12

  2020.08

  Selection And Function Of ZZ Bearings

  一. Selection of ZZ bearings 1. Selection of ZZ bearing model: ZZ bearing model is generally selected by the user's technical personnel according to the use conditions and load bearing of the supporting product. The business personnel mainly understand whether the actual load of the user is consistent with the selected ZZ bearing. If the ZZ bearing does not meet the requirements for use, the customer sh...
• 11

  2020.08

  Common Bearing Failure Damage Form

  Bearing failure and damage will directly cause the mechanical equipment to fail to operate normally, and the failure of mechanical equipment to work will also cause the work to not be completed normally, and will also bring us great losses. In order to better use the parts of a mechanical equipment, let's learn about the percentage of bearing failure and the form, cause and remedy of bearing failure with Shanghai Spark Beari...
• 10

  2020.08

  Load Type of Cylindrical Roller Bearing

  When the machine is running, according to the load acting on the cylindrical roller bearing relative to the rotation of the ring, the load on the ring can be divided into the following three types: 1. Partial load The composite radial load acting on the cylindrical roller bearing is relatively static with the ring, that is, the direction of the load always acts on the local area of the ring raceway, which is the n...
• 07

  2020.08

  Influence of Preloading Method of Cylindrical Roller Bearing

  There are two ways of axial preload for cylindrical roller bearings, one is constant pressure preload, and the other is positioning preload. Under constant pressure preload, the radial stiffness of the bearing increases slightly with the increase of speed, but the axial and angular stiffness decrease rapidly. Under positioning preload, the radial, axial and angular stiffness of the bearing all increase rapidly with the incre...
• 06

  2020.08

  Selection of Bearings Seals

  There are so many deep groove ball bearings with seals,today let us introduce the Selection of Bearings Seals. A bearing sealing ring is characterized in that two circular ridges extend upward on an end face of a circular ring. The inner diameter of the convex with a smaller diameter is matched with the outer diameter of the inner ring of a ball bearing. The outer diameter of the convex with a larger diameter is ...
• 05

  2020.08

  Knowledge Of Angular Contact Bearings

  Angular contact ball bearing type 70,000 is composed of outer ring, inner ring, steel balls and cage. It can bear radial load and axial load at the same time, as well as pure axial load, and can work stably at higher speeds. Single row angular contact ball bearings can only bear axial load in one direction. When this type of bearing bears pure radial load, because the line of action of the rolling element load and the line o...
• 04

  2020.08

  Add Frequency Of ZZ Bearing Grease

  ZZ rolling bearings need to add grease at any time to replace the grease that has deteriorated, oozes, and is contaminated. Due to the ever-changing operating conditions of rolling bearings, on-site proprietary technology is required to determine the appropriate grease addition interval from once a day to once a year. There is no grease or grease addition plan that can take care of all the load, speed, and operating temper...
• 03

  2020.08

  Selection of Spherical Roller Bearing Grease

  1. The principle of selection of spherical roller bearing grease When choosing lubricating grease, it is mainly based on the working environment, working temperature and load condition of the spherical roller bearing. (1) Working environment Mainly refers to the minimum and maximum temperature of the working environment, air humidity, whether it contains corrosive gas or excessive dust, etc. For example, whe...
• 31

  2020.07

  Rules for Assembly and Production of Spherical Roller Bearings

  1. Safe production of spherical roller bearing assembly During the assembly operation of spherical roller bearings, safe production is very important. Especially the staff who operate the press must operate in accordance with the safe operating procedures to ensure personal safety and equipment integrity. The pressure machinery in the bearing assembly, especially the eccentric press, rotates fast, and the punch slide...
• 31

  2020.07

  How to Distinguish the Quality of Bearing

  Bearing is an essential thing in life. Bearing is used in many places in life. The quality of bearing directly affects the overall performance of the product.Today let us introduce how to Distinguish the Quality of Bearing 1.Look. Observe the micro bearing processing surface, poor quality micro bearing surface rough, chamfer uneven. The surface of high quality miniature bearing is smooth and smooth, and the chamfering ...
• 30

  2020.07

  Correct Steps for Mounting and Adjusting the Spherical Roller Bearings

  Our company mainly deal with spherical roller bearings,spherical roller bearings are caused by improper installation or the use of inaccurate devices.Various applications may require the use of mechanical, heating or hydraulic devices to accurately and efficiently install the bearing, select the appropriate application of the installation method to help you extend the service life of the bearing. Measurement and adjust...
• 29

  2020.07

  Basic Knowledge Of ZZ Bearing

  The bearing is a component that fixes and reduces the friction coefficient of the load in the process of mechanical transmission. It can also be said that when other mechanical parts move relative to each other on the shaft, they are used to reduce the coefficient of friction during power transmission and keep the shaft center position fixed. Bearings are an important part of contemporary machinery and equipment. Its m...
• 28

  2020.07

  What are Lubrication Methods of Tapered Roller Bearings

  Tapered roller bearings generally need to be lubricated during use, but for bearings that need lubrication, many people will ask what are the ways to lubricate the bearings? What are the bearing lubrication methods? Based on the summary, ZZ Bearing (Shanghai) Co., Ltd tells everyone that there are 9 main ways to lubricate bearings. 1. Manual lubrication This is the most primitive method. When the lubricating oil o...
• 27

  2020.07

  Vibration and Temperature of Spherical Roller Bearings

  As an important part of machinery, the work efficiency of spherical roller bearings will directly affect the use of mechanical equipment. You may know that under normal circumstances, vibration and temperature will affect the work of spherical roller bearings to a certain extent. Many people still don’t understand what impacts and how much it will affect bearings. ZZ Bearing (Shanghai) Co., Ltd. understands the knowledge of be...
• 24

  2020.07

  Common Disassembly Methods for Cylindrical Roller Bearings

  Bearings are important parts of mechanical equipment. In the process of maintenance, reasonable disassembly methods should be obtained, and the bearings should be disassembled well, so as not to damage the bearings. According to ZZ Bearing (Shanghai) Co., Ltd. , To share common methods and importance of bearing disassembly. Taking cylindrical roller bearings as an example, common methods for bearing disassembly are: ...
• 23

  2020.07

  ZZ Bearing Installation

  As we well known that Whether the bearing is installed well or not will affect the accuracy, life and performance of the bearing,today let us introduce the way of ZZ Bearing installation. 1.Clean the bearing and related parts For grease lubricated bearings and both sides with oil seal or dust cover, there is no need to clean the seal ring bearing before installation. 2.Check the dimension and finish machinin...
• 22

  2020.07

  Grinding Technology Of Angular Contact Ball Bearings

  1. Angular contact ball bearing inner ring grinding process In order to ensure the accuracy of bearing processing, the processing of bearing parts adopts a multi-cycle method, and the number of processing cycles of precision angular contact bearings even reaches more than 3 times. Generally speaking, the grinding of the inner ring of angular contact ball bearings with tolerance grades above P4 requires at least t...
• 21

  2020.07

  Reasons For The Popularity Of Plastic Bearings

  The plastic bearings selected today can generally be divided into plastic rolling bearings and plastic sliding bearings. In recent years, engineering plastic products have gained more and more widespread applications with their outstanding performance. Engineering plastics have broad application prospects in bearings, and plastic bearings are being favored by more and more users. 1. Basic working principle ...
• 20

  2020.07

  Accuracy Design of Tapered Roller Bearing Fit

  1. Tapered roller bearing system Under normal circumstances, the tapered roller bearing will use the base hole system when fitting, but if it is a standard part, the matching nature of the parts that match it is determined by the standard part. As for the tapered roller bearing, since it is a standard part, the part matching the outer ring is made of base shaft, and the shaft matching the inner ring is made of base h...
• 17

  2020.07

  Inspection Items When ZZ Bearing is in Operation

  It is becoming more and more important to check the status of running transit and prepare a thorough inspection plan in advance. Among them, bearing is the focus of attention, because it is the most important rotating part in all rotating machines, and condition monitoring is an important part of preventive maintenance. Bearing damage is detected early to avoid unplanned equipment downtime due to bearing damage. In ...