皇冠骰宝

Welcome to Shanghai Yu Micro Bearing Co., Ltd! [login] [registration]
 Precision micro bearing National unified service hotline: 021-51099639  Precision micro bearing fifteen billion one million eight hundred and twenty-three thousand seven hundred and twenty-one
 Stainless steel bearing manufacturer
 Domestic miniature bearing manufacturer
Current location: home page >> Corporate news >>Some factors affecting bearing selection
News Center
Shanghai Yuwei Bearing Co., Ltd. (Headquarters)
Tel: 021-51099639
Fax: 021-51861291
24 hour hotline: 15001823721
Postcode: 410205
Enterprise QQ: Click here to send me a message Pre sale  Click here to send me a message After sale
Email: yw@gifudayo.com
Address: 2758 Songjin Road, Zhangyan Town, Jinshan District, Shanghai, China

Shaanxi Yuwei Bearing Manufacturing Co., Ltd
Tel: 029-86696506
Fax: 02890
Enterprise QQ:  Click here to send me a message Pre sale  Click here to send me a message After sale
Email: sales@gifudayo.com
Website: www.ywbearings.com
Address: Qinhan new town free trade zone, Xixian new area, Shaanxi Province

Some factors affecting bearing selection

Release time: 2020-09-23 10:09:22 Views: 83

Although the bearings are called standard parts, there are many kinds of types, materials and configurations. Even the bearings of the same specification, there will be different models, such as open type, iron cover seal, rubber cover seal and so on. How can we choose the right bearing when we need it? First of all, we should consider the bearing size, and then we need to consider whether the performance of the selected bearing meets the use requirements. In this issue, we will focus on how to select the appropriate bearing according to the operating conditions.

1、 Load of bearing
The size, direction and nature of the load on the bearing are the main basis for selecting the bearing type.
1. When selecting the type of bearing according to the load, the roller bearing should be used to bear a larger load because of the linear contact between the main components, and the deformation after bearing is also small. The ball bearing is point contact, which is suitable for bearing light or medium load. Therefore, when the load is small, the ball bearing should be preferred.
2. When the bearing type is selected according to the direction of load, thrust bearing is generally selected for pure axial load. Thrust ball bearing can be used for smaller pure axial load, and thrust roller bearing can be used for larger pure axial load. For pure radial load, deep groove ball bearing, cylindrical roller bearing or needle roller bearing are generally selected. When the bearing bears radial load R and there is a small axial load a, deep groove ball bearing or angular contact ball bearing or tapered roller bearing with small contact angle can be selected; when the axial load is large, angular contact ball bearing or tapered roller bearing with larger contact angle can be selected, or the structure composed of radial bearing and thrust bearing can be selected to bear radial load respectively And axial load.


2、 Speed of bearing
In general speed, the speed has no effect on the type selection, only when the speed is higher, it will have a more significant impact. The limit speeds of various types and sizes of bearings are listed in the bearing samples. This limit speed refers to the maximum allowable speed when the load is not too large (P ≤ 0.1C, C is the basic rated dynamic load), the cooling condition is normal, and it is the maximum allowable speed of bearing with grade 0 tolerance. However, because the limit speed is mainly limited by the temperature rise during operation, the limit speed in the sample can not be considered as an absolutely insurmountable limit. If the working speed of the bearing exceeds the limit speed, the following fifth measure can be taken.

The following points can be determined according to the requirements of rotating speed for bearing:
1) Compared with roller bearing, ball bearing has higher limit speed, so ball bearing should be preferred in high speed;
2) Under the condition of the same inner diameter, the smaller the outer diameter is, the lighter and smaller the rolling element is, and the smaller the centrifugal inertia force added by the rolling element on the outer ring raceway during operation is smaller, so it is more suitable for working at higher speed. Therefore, in high speed, it is advisable to select ultra light, ultra light and light series bearings. Heavy and extra heavy series bearings are only used for low speed and heavy load. If one light series bearing is used and the bearing capacity cannot meet the requirements, wide series bearing or two light series bearings can be used together.
3) The material and structure of cage have great influence on bearing speed. Solid cages allow higher speeds than stamped cages.
4) The limit speed of thrust bearing is very low. When the working speed is high, if the axial load is not very large, angular contact ball bearing can be used to bear pure axial force.
5) In order to improve the lubrication performance of the bearing, such as increasing the lubricating oil level, or increasing the oil circulating speed of the bearing. If the working speed is more than the limit speed, special high-speed rolling bearing should be selected.


3、 Centering performance of bearing
When the center line of the shaft does not coincide with the center line of the bearing seat and there is an angle error, or when the shaft is bent or tilted due to the force on the shaft, the axis of the inner and outer rings of the bearing will tilt. At this time, the self-aligning ball bearing or self-aligning roller bearing with certain self-aligning performance should be adopted. This kind of bearing can still work normally when the axis of the inner and outer rings has a small relative deviation.
Cylindrical roller bearing and needle roller bearing are the most sensitive to bearing deflection, and the bearing capacity of these bearings may be lower than that of ball bearing in the skew state. Therefore, this kind of bearing should be avoided as far as possible when the shaft stiffness and bearing seat hole support stiffness are low.


4、 Installation and removal of bearings
Easy to assemble and disassemble is also a factor to be considered when selecting bearing type. Not in the bearing housing
Dissection When the bearing components must be installed and disassembled along the axial direction, the bearings with separable inner and outer rings (such as N0000, na0000, 30000, etc.) should be preferred. When the bearing is installed on the long shaft, in order to facilitate the disassembly, the bearing with the inner ring hole of 1:12 (used to install on the set sleeve) can be selected.

? ? ? ? The above is about how to select the right bearing according to the operating conditions. I hope it will be helpful for you. If you want to know more about bearing information, Please call Yuwei's sales hotline 021-51099639-802 and 24-hour after-sales service hotline 15309279285 (wechat's same number), we will provide you with help and technical service support at any time!

Yuwei bearing, the bearing expert around you!!!

? ? ??

 Shanghai miniature bearing
Shanghai Yuwei Bearing Co., Ltd. (Headquarters)
Tel: 021-51099639
Fax: 021-51861291
Email address: yw@gifudayo.com
Address: 2758 Songjin Road, Zhangyan Town, Jinshan District, Shanghai, China
Shaanxi Yuwei Bearing Manufacturing Co., Ltd
Tel: 029-86696506
Fax: 02890
Email address: sales@gifudayo.com
Address: Qinhan new town free trade zone, Xixian new area, Shaanxi Province
 Mobile website Shanghai mobile terminal  Wechat public account Shanghai public account  Mobile website Shaanxi public account  Wechat public account Shaanxi micro signal
Shanghai non magnetic bearing | Shanghai micro bearing | micro motor bearing | micro bearing factory | corrosion resistant bearing | drill bearing | hybrid ceramic bearing| Yumicroelectronics sample
Baidu statistics Website map All rights reserved. Shanghai Yuwei Bearing Co., Ltd. huicp No. 17011822 technical support: Bailian bearing network