Why do watch movement need jewel bearing?

Why do watch movement need jewel bearing?

A mechanical watch, we usually heart balance wheel on the back of watch case or machine to see how many how many JEWELS, this means machine heart contains many ruby.

The heart ruby how important the meaning of this machine?

?Familiar with watch machine core structure should be clear, jewel bearing in a wrist watch belong to the category of "other parts", its purpose is to reduce the pivot shaft friction.

What we call ruby bearing in ruby is artificial, main component is 3 oxidation 2 aluminium, with a uniform quality of a material is solid, easy processing, several characteristics such as colour multiple-choice, with natural ruby has the same properties.

So why watch machine core embedded ruby?

1, Watch historical origin

?And let's start from the history of ruby, 18 th-century Britain is the cradle of high quality clock, BiaoJiang small particles of ruby (gem) is used to make pendulum pivot bearing.

First create a ruby drilling technology is the optician of Switzerland and astronomers Nicolas Fatio, he went to the UK hoping for a "royal privilege" for this invention.

But the British say the technology is already in use, in the end he didn't get privilege, while his technology adopted by other craftsmen, also it is the technology that make the British empire in the watch industry continued in a dominant position.

Change is the master of tabulation Abraham?

Louis?

Treasure ji Abraham - Louis Breguet, he put the watch technology back to France.

Since then, ruby is widely used in watches.

2, Watch technical reasons

?Machine set ruby was originally based on heart, mechanical operation of the machine heart must rely on the gear on the transmission power and.

Before the important functions of ruby is not recognized, the escape wheel spin axis line, escapement fork, pendulum shaft rod and gear train wheels are screwing in brass plate holes.

The hole with small tank, lubricating oil will flow into the hole in the pivot.

Over time, such as the dirt in air into the formation has the abrasive action of the material, slowly fell off on the soft brass, even fall off a hard steel pivot.

The BiaoJiang and realize the need to find a hard than brass material, withstand the wear and tear of pivot.

This material is ruby, it is a kind of material of hardness is second only to diamond.

Natural ruby has a strong scarcity, so people made wrist watch the synthesis way of precious stones.

3, Watch consumer demands

All the products are ultimately in order to satisfy the consumer.

In the eyes of consumers, with gem (even if it is artificial gem) wrist watch, can improve the added value of the "face".

The watchmaker soon smell business opportunities and begin in machine heart set with ruby.

Ruby bearing mainly has four kinds: one kind is as shaft eye ophthalmic, commonly known as "hole", it is set in a certain area, make the shaft and hole in contact;

Another kind is a cover plate, commonly known as the "diamond", equivalent to the mechanical bearing, it can limit shaft tenon shake;

One kind is doing nails with round diamonds.

Even on an ordinary manual chain mechanical watch, jewel number will range from a minimum of 14 to 19 at the most, automatic chain and more complex mechanical watches.