Bearing is actually around us and the amount is amazing. Take automobile as an example, an automobile generally needs to use 100 to 150 bearings. If there is no bearing, the gears of the gearbox cannot mesh, and the automobile cannot run. Not only automobiles, railway vehicles, airplanes, but even man-made satellites flying in space have bearings. Bearings play an important role in improving mechanical efficiency and energy saving, but because bearings operate inside machinery, it is rare for people to see the bearings directly. But the bearing is an important part to maintain the mechanical stability and function.

 A bearing is used to support a rotating shaft, hence its name.

The basic function of bearings is to reduce mechanical friction. Reducing friction has three advantages: improving the working efficiency of machinery, prolonging the life of machinery, preventing biting and sticking, and reducing mechanical failure. Bearing can reduce friction, improve transmission efficiency, which is environmentally friendly bearing.

Sizes range from two millimeters to six meters

Bearings vary greatly in size, ranging from tiny to huge. Miniature bearings can be as small as 0.6 mm inner diameter × 2.0 mm outer diameter × 0.8 mm width and are applied in micro motors. In contrast, large bearings have an outer diameter up to 6 meters and weigh over 15 tons. Such bearings are installed in large shield tunneling machines for tunnel excavation.

400,000 revolutions per minute

Dentists use bearings that rotate at super high speed in tooth rotation. These are two ultra-precision bearings with an inner diameter of 3mm, an outer diameter of 6mm, a width of 2mm, and a steel ball diameter of 1mm.They rotate at a rate of 400,000 revolutions per minute, greatly reducing the vibration of the tooth rotation and the patient's pain.

The ball spins at 160 meters per second

The v2500, a passenger jet engine, uses spindle bearings that roll at 160 meters per second, Thanks to high-performance, high-speed bearing engines the v2500 operates safely for long periods of time, ferrying passengers everywhere.

Amplitude below 100 nanometers

The accuracy of the machine depends on the accuracy of the bearing. There are two bearings at both ends of the rotating shaft. If the shaking of the axis is large, the performance of the machine cannot be improved. The axis amplitude of ultra-precision bearing is less than 100 nanometers, the key is the precision of rolling body.

It can work in space for 15 years

It can work in space for 15 years and is equipped with a gyroscope that maintains the satellite's attitude and heading. The gyroscope is equipped with ultra-precision bearing, which can work continuously in space for 15 years

In the world of minus 253 ° c to 500 ° c

In the world of minus 253 ° c to 500 ° c, the liquid bearing in the space rocket is the one with the lowest temperature. The bearing works in liquid oxygen at minus 253 degrees Celsius. In X-ray vacuum tubes with temperatures of up to 300 to 500 degrees, bearings can also operate and play a role in safeguarding our health