News

• 26

  2018.03

  What is Roller Bearing?

  ZZ Bearing (Shanghai) Co., Ltd would like to teach you some knowledge about roller bearings, hope to bring you some help. Roller bearing is a type of bearing with the journal rotating in circumferential contact with a number of rollers mounted on locating rings. Roller bearings can be preloaded to achieve good accuracy and rigidity. And can also use the tapered inner ring, to adjust the bearing work clearance. 1: The radia...
• 20

  2018.03

  Knowledge about Rolling Element of Rolling Bearing

  ZZ Bearing (Shanghai) Co., Ltd would like to teach you some knowledge of rolling element in bearings, hope to help you learn more about bearings. Rolling bearing mainly consists of 2 types: steel ball and roller. Roller bearing: rolling element is roller. According to the roller type, can be divided into: cylindrical roller bearings - rolling body is cylindrical roller, cylindrical roller length and diameter ratio is less than ...
• 16

  2018.03

  The role of the bearing Block

  The bearing seat serves to rotate the bearing, the outer ring of the fixed bearing, only the inner ring to keep the outer ring stationary, and always in accordance with the transmission direction (such as engine running direction) to maintain and maintain balance; Is the collection of bearings and boxes for ease of use, so the benefits can be better with more convenient usage and reduce the cost when using the manufacturer. ...
• 14

  2018.03

  Quality Judgment of Roller Bearing and Ball Bearing

  Some Misunderstandings on the Quality Judgment of Roller Bearing and Ball Bearing 1. Judging bearing quality by whether the surface of the bearing is bright or not In the process of selling roller bearings or ball bearings, many customers say that as long as the surface of the rolling bearing is bright, it is good quality, actually this is wrong. Rolling bearing surface should be the kind of glossy black, glossy black for ...
• 08

  2018.03

  Brief Knowledge of Automobile Bearing

  ZZ Bearing (Shanghai) Co., Ltd would like to teach you some knowledge about the applications of bearings in a car, hope to bring you some help. A car usually has dozens different types of bearings installed at different rotational parts. According to the installation parts, the automotive bearings can be divided into engine bearings, transmission bearings, steering system bearings, air conditioner bearings and other bearings. ...
• 07

  2018.03

  The Characteristics and Usage of Thrust Roller Bearings

  Thrust roller bearing , the main usage of it is to bearing axial load and radial combined load,but the radial load must not exceed the axial load of 55%. Compared with other bearing , this bearing has low friction , high speed and it also has the self-aligning properties. For 29000 type bearing , it’s rolling element is asymmetric spherical roller , it can reduce the relative sliding of roller and raceway in work.More...
• 06

  2018.03

  Use of tapered roller bearings.

  Tapered roller bearings mainly bear radial and axial combined load.Bearing capacity depends on the raceway Angle of the outer ring, and the larger the Angle, the greater the bearing capacity.The bearings are separable bearings, which are divided into single column, double row and four row tapered roller bearings according to the number of rolling bodies in the bearing.Single row tapered roller bearing clearance needs to be a...
• 02

  2018.03

  Knowledge of Miniature Deep Groove Ball Bearings

  ZZ Bearing (Shanghai) Co., Ltd would like to introduce you some knowledge of miniature deep groove ball bearings, hope to bring you some help. In the mini bearings, the type of miniature deep groove ball bearing has 68 series, 69 series, 60 series, and 6 kinds of British R series. On this basis, also can be divided into ZZ steel bearing shield series, with RS rubber sealing ring micro bearing series, teflon seal bearing series ...
• 01

  2018.03

  How to Ensure the Bearing Working Smoothly

  In terms of use , we should pay attention to the following tips to keep the bearing working smoothly. 1.The bearing clearance should be appropriate, if the clearance is too large , it's going to have a shock, if smaller , the lubrication will poor , then cause bush-burning. 2.Improved lubrication quality, control the oil pressure,temperature,flow and enhance the oil filtration. 3.Adopt regular fuel oil and lubricat...
• 28

  2018.02

  Standard requirements for bearing parts.

  1. The quality of bearing parts must meet the requirements of relevant national and industrial standards. The drawings shall be subject to drawing standards. 2. The inner and outer ring of the bearing and the ball must be tested for flaw detection and no cracks are allowed.In the process of parts processing, acid cleaning must be carried out and no burn is allowed. 3. Sampling inspection shall be conducted before the f...
• 26

  2018.02

  Attentions in Using Large Bearings

  Generally the machine use large bearings has the following features: 1, its structure of machine is large. 2, speed is not fast, low speed with heavy load, because its most significant advantage is to be able to bear the greater load. 3, The general large bearing has the requirement to adapt to the bad environment. Because the bearing is large, it is not easy to destroy the bearings for small dust particles and impurities. M...
• 08

  2018.02

  Nylon Retainers in Roller Bearings and Ball Bearings

  Nylon retainers are wildly used in ball bearings and roller bearings, because of the corrosion resistance it is greatly used in special industrial varieties. Nylon retainer is made of special materials. Common elements are: glass fiber reinforced nylon and adding anti aging agent, which has good strength and flexibility, chemical resistance, aging resistance and good dimensional stability characteristics. Advantages in the ...
• 07

  2018.02

  The Assembly Notice of Bearings

  When installing bearings , here are a few things to consider. 1.The bearing face which marked with part number or specification should be installed on the visible part, for ease of replacing in future. 2.After the bearing was installed on the shaft and bearing block hole , there should be no skew and lag. 3.To ensure the bearing has a room for expansion when working , the out ring or inner ring of the bearing must m...
• 06

  2018.02

  Selection tips for low noise bearing.

  1. Rolling bearing with low noise requirements: in the standard bearing produced in China, some single-row centripetal ball bearings and short cylindrical roller bearings have low noise varieties used for motor bearings.The ball bearing from 60 mm diameter from 2.5 mm to have several varieties with Zl, Z2 and Z3 three suffixes, corresponding to three different types of low noise, and roller bearing from N309 type to N322 typ...
• 02

  2018.02

  Which is the Better Choice for Motor Bearing ?

  Advantages of cylindrical roller bearings: After improve the design of geometric shape of cylindrical roller bearing raceway and rolling body, it has high bearing capacity, a new structure design of rib and roller end, not only improves the bearing capacity, but also improve lubrication conditions of rib and roller end of the contact area, improve the bearing performance. Cylindrical roller bearings are generally use...
• 01

  2018.02

  The Reason for Premature Aging of Rolling Bearings and Prevention Method

  Premature aging of rolling bearings will causes the stop of equipment. Normally , the reason for premature aging of rolling bearing is: tight assembly , poor lubrication , severe jolt , fatigue of materials , pollution of the corrosion , etc. 1. Tight assembly . The clearance between ball and raceway is too small. The torque and friction increases, the bearing work temperature is too high, so lead to the wear of bearing. ...
• 31

  2018.01

  The basic performance requirement of rolling bearing working condition

  1. Use magnetic plug to monitor rolling bearing. (1) the magnetic plug is only suitable for oil lubrication and is monitored through the key main bearing of oil recovery through special pipe. (2) the magnetic plug shall be installed near the main bearing of the monitored main bearing, and it is in the main channel of the oil return, and there is no filter, oil pump and other hydraulic parts in the middle. (3) in ord...
• 30

  2018.01

  The Self-aligning Ball Bearings

  The self-aligning ball bearing has two rows of balls and a common concave sphere raceway in the outer ring . The bearing is consequently self-aligning and insensitive to angular misalignments of the shaft relative to the housing . It is particularly suitable for applications in the occasion that with shaft deflections or misaglignment . Additionally , the self-aligning ball bearing has the lowest friction of all rolling b...
• 29

  2018.01

  Installation of Thrust Bearings

  ZZ Bearing (Shanghai) Co., Ltd would like to teach you some knowledge about installation of thrust bearings. Hope to help you learn more about bearings. Thrust bearings include four point contact ball bearings, double row (single row) angular contact ball bearings, two-way thrust cone and cylindrical roller bearings. When four point angle ball bearing and double (single) angle touch ball bearings used as thrust bearing, cannot...
• 26

  2018.01

  The Influence Factors of Bearing Performance.

  The service life and reliability of rolling bearings are closely related to the smelting quality of bearing steel.Due to the characteristics of bearing steel, the requirements for smelting quality are much stricter than general industrial steel, such as chemical composition, purity, organization and uniformity of steel. 1.Strict chemical composition requirements.Generally, bearing steel is mainly high carbon chromium bearing...
• 23

  2018.01

  Some Misunderstandings on Quality Judgment of Roller Bearing and Ball Bearing

  1. Judging bearing quality by whether the surface of the bearing is bright or not In the process of selling roller bearings or ball bearings, many customers say that as long as the surface of the rolling bearing is bright, it is good quality, actually this is wrong. Rolling bearing surface should be the kind of glossy black, glossy black for this reason is whether the use of the rolling bearing steel standard and its grindi...
• 22

  2018.01

  The Common Problems In Bearing Use.

  Strong metallicsound 1.Abnormal load : Select the appropriate assembly clearance and preload. 2.Poor assembly: Improve the machining precision of the shaft and the installation method. 3.Insufficient lubricant : supplement or use appropriate lubricant. Regular Sound 1.The foreign body caused the raceway to rust, indentation and scar : Clean related parts and use clean grease. 2.Bearing raceway spalling : Fatigue...
• 19

  2018.01

  Precision grade and selection of bearing.

  1. The tolerance level of the bearing is determined according to the rotation accuracy requirement of the axial support. Level 0: it is widely used in general bearing systems with rotating precision greater than 10 m.Such as the speed change mechanism of common machine tool, the speed change mechanism of feeding mechanism, automobile, tractor, ordinary motor, water pump and agricultural machinery, etc. Level 6, 5, in t...
• 18

  2018.01

  Special Bearing For Mining Machinery

  Special process and Technical requirements : After processing of gush arenaceous , the surface of ferrule will emerge compressive stress to buffer the impact load ; reducing the rough degree of roller path and surface of ferrule in order to improve the performance of bearing Performance advantages Good bearing capacity , good resistance performance is effective under the situation of axis deviating fa...