What would the world be without bearings--Bearings turn the world

What would the world be without bearings--Bearings turn the world

Bearing is one of the most important parts in modern mechanical equipment. Its main function is to support the mechanical rotating body, in order to reduce the friction coefficient of mechanical load in the transmission process of equipment.

What if the world suddenly ran out of bearings? Cars don't run, planes, trains, subways don't run. I can't even get my skates in the air

Here's a look at some of the devices and tools we come into contact with on a daily basis:

Check out how the TREADMILL WORKS!

The treadmill conveyor moves fast and steady on a 12-kilogram steel bar

Under these rods are four bearings that allow it to rotate at a steady speed

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Six rubber shock absorbers, attached to the bottom, act as shock absorbers

Reduce foot vibration on the conveyor belt

On the bottom is a 2.5 cm thick running board, waxed on the outside,

the tail is hinged to provide a stable surface for running,

can reduce the injury to the knee joint

The rollers need to be sturdy, making sure that each time the runner's foot hits the conveyor belt,

to record the runner's stride frequency. Through the computer console,

you can set your running speed by putting your foot down on the board

The conveyor belt starts to slow down, and the drives all work at the same time

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To counteract the slowdown immediately


The electronic controller detects a change in gait speed and then gives the command,

accelerate the engine so that the belt can return to its preset speed

Match the Treadmill to the runner's stride

The runner felt at ease throughout the race

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How does a tape measure roll up several meters of metal?

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Under the rigid plastic shell of the tape measure, 26 parts work together

The tightened coil spring allows the tape to measure the data accurately

The Sleeve Hook can hook the metal piece without breaking it

The tightly wound coil springs absorb the metal sheet at the moment of contact with the friction

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At the end of the tape, a strip of metal is attached to it

The length is equal to the length of the tape measure


As the metal bars wound around the central Axle,

this becomes a powerful spring

The more the tape is pulled out, the greater the spring pressure

As soon as the latch is released, the spring needs to be repositioned,

the tape measure leaves were immediately gathered in

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How does a hundred meters of fishing line roll up?


Under the ultra-light aluminum frame of the fishing line,

there are 141 sophisticated building blocks

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Fishing line with more than 540 meters of special woven thread,

capable of carrying up to 65 kilos


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The inner stainless steel ball rotates around the bearing,

at 10,000 beats per minute


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And the precision gears crank up the motion,

you can retract the line


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How does Yo-yo spin like a Grand Prix motor racing engine?

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The balance design allows Yo-Yo balls to be thrown and retracted smoothly

Meanwhile, the Yo-yo ball can spin on the line for a long time

And make sure it doesn't slow down



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In order to do this,

inside the Yo-yo ball is a contraption smaller than a penny




Between the inner and Outer Rings, there are 10 small balls rolling together

To block the friction between the inner and Outer Rings

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Although the rope is wrapped around the outer ring, the inner ring can still rotate at full speed

As fast as an f 1 Grand Prix motor racing


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This ingenious way of separating

To keep the Yo-yo ball rolling all the way to the end, and in the meantime,

the weight on either side of the Yo-yo Ball also helps prolong its deceleration


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