With the development of science and technology, precision ball bearings have been widely applied, in recent years, technology continues to progress, the types of ball bearing endless, in many areas have a very wide range of applications, the following we have a specific understanding of the working principle of ball bearings, What is the bearing effect?
Precision ball bearing principle
The bead bearing is a kind of rolling bearing, the spherical alloy steel ball is installed in the middle of the steel ring and the outer steel ring, rolling way to reduce the power transmission process friction and improve the mechanical power transmission efficiency. Ball bearings can not withstand the heavy load, more common in light industrial machinery. Ball bearings also called ball bearings.
About how ball bearings work
Ball bearings mainly contain four basic components: ball, inner ring, outer ring and retainer.
(Such as: medium carbon steel, aluminum alloy) or non-metallic (such as: Teflon, PTEF, polymer materials), and the hardness of the retainer is lower than that of the ball and the ring. Rolling bearings are smaller than the rotational frictional resistance of journal bearings, so the temperature at which the friction produces is relatively low at the same speed.
Ball bearings are generally used in low-load mechanical transmission equipment. Because the ball bearing bearing area is small, in the case of high-speed operation is prone to serious mechanical damage, so in the heavy load mechanical transmission often take the needle roller bearings to increase the bearing surface, improve the mechanical transmission efficiency, while reducing Mechanical damage.
Ball bearings change the friction of the bearing, the use of rolling friction, this way more effectively reduce the friction between the bearing surface phenomenon, to enhance the service life of the fan bearings, and therefore the radiator life extension. The disadvantage is that the process is more complex, cost-effective, but also bring higher work noise.
What is the role of precision ball bearings
1, in accordance with the national standard GB / T17587.3-1998 and application examples, ball bearings (now basically replace the trapezoidal screw, has been commonly known as screw) is used to convert the rotation into a linear motion; or linear motion into rotary motion Of the implementation of components, and has a high transmission efficiency, positioning accuracy and so on
2, when the ball bearing as the active body, the nut will be with the screw rotation angle in accordance with the corresponding specifications of the lead into a linear motion, passive parts can be connected through the nut seat and nut, in order to achieve the corresponding linear motion.
Ball bearing features:
1, compared with the sliding screw drive torque of 1/3
There is a lot of balls between the screw shaft of the ball screw and the mother of the roll, so that it can get high motion efficiency. Compared with the past, the driving torque of the sliding screw is less than 1/3, that is, the power required to achieve the same motion result is 1/3 of the use of the rolling screw. In the power of the very helpful.
2, high-precision guarantee
Ball screw is manufactured in Japan by the world's highest level of mechanical equipment produced in a row, especially in the grinding, assembly, inspection of the process of the factory environment, the temperature and humidity were strictly controlled, due to improve the quality management system So that the accuracy can be fully guaranteed.
3, micro-feed possible
Ball screw because it is the use of ball movement, so the starting torque is very small, there will be no sliding movement as crawling phenomenon, to ensure accurate micro-feed.
4, no backlash, high rigidity
Ball screw can be added to the pressure, due to the pressure can make the axial gap to a negative value, and then get a higher rigidity (ball bearing ball by adding pressure to the ball, in the actual use of mechanical devices, etc., due to the ball repulsion The rigidity of the mother portion can be enhanced).
5, high-speed feed possible
Ball screw because of high efficiency, small heat, so you can achieve high-speed feed (movement).
Accuracy Tolerance: C10, C7, C5, C3, C2, C1 - the smaller the number, the higher the accuracy.