Their rollers and the outer wheels are arranged in a right angle intersecting intersecting. They can bear the load from all directions at the same time (such as axial, thrust or momentum hormones, etc.). Because of the linear contact between the roller and the track surface, the possibility of the axis to bear the load and the elastic deformation is very small. This type of bearing is widely used in industrial robots, working machines and medical facilities. It needs high rigidity, high speed and high speed to ensure precise occasions.
In cross roller bearings, cylindrical rollers are perpendicular to each other through spacer retainers on the top, so 1 cross roller bearings can bear all loads of radial load, axial load and torque load. Ring size is the minimum limit of miniaturization, especially very thin type is small size close to the limit, and has high rigidity, so the most suitable for use in industrial robot joint or rotating parts, machining center machine rotary table, hand rotating parts, precision rotary table, medical machine, metering device, IC manufacturing equipment etc.
1. Excellent rotation accuracy
Crb Bearing,Cross Roller Slewing Bearing,Crb Turntable Slewing Bearing,Cross Roller Slewing Bearing Crb LUOYANG AUTO BEARING CO.,LTD , https://www.lyautobearing.com
Unlike China's “bad students†who are unable to pass the high school exams, they are forced to go to vocational schools. Germany’s education is divided into two lines: one is primary school – liberal arts and middle school – university, which mainly trains personnel engaged in scientific and basic theoretical research; It is an elementary school - an ordinary middle school or a real school - a vocational school. It mainly trains artisans. In the fourth grade of elementary school, it will be diverted, and 60% of German teenagers actively choose vocational education. Vocational education in Germany spends half of its time in vocational schools and half the time in internships. For professionals, the sooner you begin to practice, the better you will be able to master professional skills.
The president of a German company once said: "Made in China wants to rise, equipment and technology are on the one hand, and more importantly, training for blue-collar workers." Because his plant in China is far ahead of the equipment of German factories, but The product rate is 8 to 10 times that of a German factory. The reason is that the workers' skill level is low, and the time spent on the work is too short and leads to inexperience.
What is needed to change is not just the education system. More important and more elementary steps may be to change everyone's prejudice against blue-collar workers.
The rigorous reputation of Germans is global, and the most common mantra in German is “just in caseâ€. In order to prevent them from happening, they are extremely eager to formulate standards like obsessive-compulsive disorder in Virgo and are generally irreducible and even proud. The A4 paper size that we are familiar with is an international standard. This standard was established by the Germans in 1922 (paranoid is really an ancestral).
Germany has a special unit called the Bureau of Standards. They have set up more than 25,000 standards, which have reached half of the total global standard, and are increasing at a rate of 1,500 per year. These standards cover all aspects, from the use of public fonts to the hexagonal shape of nuts, from the ventilation of toilets without windows to the repair of manhole covers, several warning signs should be placed.
In contrast, Chinese enterprises have large-scale capacity and technology. However, both the production process and the quality supervision lack standardized measures. This is an urgent need for improvement.
In addition to the world’s top 500 companies, German companies are more of the industry champions who are squeaking their wealth. Germany has 1,307 invisible champions and the number is almost 19 times that of China. They are basically family heritage companies. Their practices are often out of tune with the modern management doctrine. They often only produce a single product and focus on the high-end niche market. Their R&D investment is two times higher than that of other German companies, and the number of per capita patents is five times that of multinational companies. They shape the strong, durable and exquisite qualities that make in Germany and are the most indispensable cells in the craftsmen's organization.
However, there are fewer and fewer companies that are willing to manage and succeed in China. As the product has just picked up, it has become normal to rush into the real estate market and capital market alone. When companies truly understand the equal sign between the invisible champion and the spirit of artisans, the way out of Chinese manufacturing will be bright.
A century-old dessert company in Germany is the world's largest confectionery manufacturer and exports its products to more than 100 countries. It had recalled 14,000 bags of candy just because the metal rails on the production line were found to be distorted when the production machines were cleaned, possibly causing metal powder to contaminate some of the candies.
Appealing to buy is only half the success, and the rest is due to a good sense of service. This active attack on the issue will not only not affect the brand's reputation, but it will return more loyal users because of trust. In addition to the recall system in major events, the normal after-sales service will further help the company to be invincible.
The inner structure of the Cross Roller Bearing is arranged in 90 degrees perpendicular to each other by the roller.
The roller is equipped with a spacer or isolation block between the rollers to prevent the rolling of the rollers from being examined each other. In addition, the phenomenon of roller contact or locking will not occur. At the same time, because the inner and outer ring is a segmented structure, the clearance can be adjusted, even if the preload is applied, high accuracy rotation motion can also be achieved.
2. Simplification of operation and installation
The outer ring or inner ring, which is divided into 2 parts, is fixed together after loading the roller and the holder, so the operation is very simple.
3. Bear large axial and radial load
The roller is arranged vertically through the spacer retainer on a 90 degree V groove rolling surface.
4. Greatly save the installation space
The size of the inner and outer ring cross Roller Bearing is miniature minimal, especially ultra-thin structure is small size close to the limit, and has high rigidity, so the most suitable for industrial robot joints or rotating parts, machining center of the rotary table, the robot rotating parts, precision rotary table, medical instrument IC, measuring equipment, manufacturing device widely used.
5. high speed ability
6. reducing shaft length and machining cost, thermal expansion leads to a limited change in geometric size.
7. the nylon separator is used, the moment of inertia is low, the starting torque is low, and the angle degree is easy to control.
8. optimization of pretightening force, large rigidity, high precision of guiding roller
9. carbon steel provides excellent impact resistance and surface abrasion resistance
10. simple but fully lubricated
When it comes to German industry, it is not top-notch to single out a certain plate. They are proud of two things: CNC machine tools and precision instruments. One is better than the Netherlands and the other is Switzerland. But why does China always feel that Germany's industrial strength is the strongest? Because their comprehensive system is complete, what they are good at is what we lack most.