"Marty, Marquis~~"

A fast horse galloped in the distance and rushed to the edge of the field. Ma Gan jumped off the horse with excitement on his face.

Chen Xu shook the wet mud in his hands a few times and stood up with annoyance and said, "Don't let the horse eat my pepper seedlings, why are you so excited?"

Ma Gan quickly pulled the horse back one ft away before saying excitedly: "Mr. Marquis, we have found a good way to make bearings. After loading, the marbles will never fall out again!"

"Really?" Chen Xu was also excited.

"Really, a craftsman accidentally discovered the method that he could put a steel bulge of appropriate size into the inner and outer collars, and there was no gap when he turned..."

"Let's go to the factory to take a look!" Chen Xu handed the shovel in his hand to a servant next to him, then washed his hands in the pond and turned over to the horse, and took a few guards to the factory with the maroon.

The current test factory is already very different from before, and its management is still strict, but the planning inside is more organized. In addition to the ironworks and iron smelting plants, there is an additional glass factory and a bearing factory, and an additional comprehensive laboratory.

Glass factories have begun to make glassware, cups, bowls, plates and lampshades of candles and oil lamps on a large scale. These made utensils will be placed in Qinghe Store for sale. They are expensive and more expensive than porcelain. The main reason is that the screening of pure quartz sand is very difficult at present. In addition, all glassware is cast using the wax pattern method, and the efficiency is inefficient, not only with high yield.

Even the simplest flat glass is still difficult to manufacture. At present, the largest glass factory can only pour glass of more than a square foot. First, use the finest mud to naturally flow into a flat mud, then fill it with paraffin, and finally pour it into a melted glass juice to cool it. Due to uneven hot and cold, insulation measures and other reasons, ten yuan can usually be successful in four or five yuan, and the cost is huge. One apprentice can successfully make one or two pieces in a day with an assistant. There are less than twenty apprentices in the entire glass factory, which is not enough to meet the needs of the carriage factory.

However, like porcelain, glass is a luxury consumer product. It can be sold at a higher price with low output and is not a necessity for daily life. Therefore, Chen Xu did not pay special attention to it. Even if he did too much, ordinary people still couldn't afford it. Moreover, the transportation of glass products was difficult. At present, the sales scope was limited to Xianyang City. There was no supply in Qinghe stores elsewhere, and it was not available.

The purpose of the comprehensive laboratory is to create some of the things studied by the Academy of Sciences here, such as the improved threshing machine and the rolling machine, which are first made here, and water wheels and water mills of different sizes are also being improved and designed. A group of craftsmen from the Academy of Sciences soak in it almost all day long, and the sound of dinging and knocking is constantly coming out, and mechanical transmissions such as chain gear wheels and rods are all being studied here.

Chen Xu has visited twice and guided him twice. It looks lively and the various gears look very good, but in fact the effect is terrible. Without deep geometric skills, no parabola theory, no precision machining instruments and lathes, the gear manufacturing only looks similar. There will be huge errors in the coordination between two gears cast with the same model, which means that the size and distance of the gear teeth cannot be exactly the same.

As for bicycles, Chen Xu has not expressed much hope for a short period of time.

At least one chain is used to make two gears of different sizes perfectly coordinate without errors. This difficulty is not ordinary, far beyond the industrial design and manufacturing capabilities of this era. A group of craftsmen tortured by a chain is screaming. The workbench in front of several craftsmen responsible for the chain is filled with iron pieces of various sizes, latches and rollers, etc., and they sit at the table with red eyes and beating them.

It's not for Chen Xu's reward of ten thousand yuan.

Instead, these people have fallen into a fever for high-end mechanical equipment such as gears and chains.

This is another world.

A completely different mechanical world than what I have seen in the past.

With qualified gears, tight chains, flexible bearings, and some simple processing machinery and equipment manufactured at present, the door of a machine industry seems to have begun to open, because once these things are successfully researched, they will inevitably affect all aspects of life.

As the top group of craftsmen in Daqin, their vision naturally looks deeper and farther.

In the bearing factory, there are hundreds of craftsmen apprentices and helpers, divided into more than ten groups to carry out different work.

Steel ball screening, polishing, collar selection, polishing, and final assembly and testing are all done by hand, and there is no sloppy at all.

Because the bearings are precision components, the inner and outer rings must be polished very smoothly, and the steel balls must also be selected with the same diameter and size, and must be ensured that they are round enough without any flaws. Otherwise, once they are manufactured, they will inevitably fail and will not be broken in a long time.

A pair of steel bearings is of great value. If the carriage breaks down every few days and causes it to break down on the road, it will definitely seriously affect travel and cargo transportation. If it cannot improve efficiency, it is better to use the original wheels.

The steel machinery industry represents progress rather than regression.

Therefore, Chen Xu has high requirements for the bearing factory.

Another major reason is that most of these bearings were bought and used by kings, princes, princes, nobles, and wealthy merchants.

The poor quality affects the reputation of his immortal disciples.

"The Marquis is here!"

Seeing Chen Xu walking into the factory accompanied by Ma Gan, the busy craftsman apprentice helpers quickly put down their work station and greeted them.

"Everyone doesn't have to worry about me, they all go to work!" Chen Xu waved his hand, and the craftsmen and apprentice helpers immediately dispersed and continued their own work.

Ma Gan took Chen Xu to a separate workshop in the factory, where only two craftsmen were measuring the steel balls and rings with calipers. When he saw Chen Xu coming in, he quickly put down his tools and bowed.

"No gift, bring me the improved new bearings!"

Chen Xu was already familiar with these craftsmen. He walked straight to the front of the workbench and looked at the messy bearings and steel products of various sizes placed on the table.

"Mr. Marquis, this is the case!" A middle-aged craftsman quickly handed Chen Xu a bearing about three inches in diameter placed in front of him.

The appearance is no different from ordinary bearings. There are eight steel balls in the middle of the inner and outer rings, and there is no iron piece that blocks the steel balls.

Chen Xu gently moved his hand, and his face moved.

"Hey, it's not bad, it's flexible and has no gaps in rotation!"

Looking at the rotating bearings, Chen Xu couldn't help but praise them. At the same time, he looked at the bearings carefully and found that the steel bulbs and the inner and outer collars were very tightly fitted, and they did not have the loose feeling they used to be. It was almost no different from the bearings they played with when they were young.

"How do steel marbles be embedded?" Chen Xu couldn't help but ask in surprise after looking through it.

"Hehe, it's actually very simple. You can get in after a hammer!" Ma Gan said with a giggle beside him.

"When the hammer is in, wouldn't the steel brigade be deformed?" Chen Xu looked at Ma Gan in confusion.

"No, the Marquis was wrong. He didn't hammer the steel bulbs in, but the collars outside. He just needed to put the steel bulbs in first, and then hammer the collars upright. These steel bulbs would be embedded and arranged neatly!" A craftsman quickly shook his head to explain.

Chen Xu stayed for a long time but couldn't figure out how to hammer the steel marble and run in and arrange it by himself. So he pointed at the craftsman and said, "Show it to me!"

"Yes, Marquis!"

The craftsman was excited and swept the pile of things in front of him to the side, then picked up a set of polished collars, and stood up the inner and outer collars with one hand. One side of the inner and outer collars came into contact with each other, and a large space was empty on the other side.

"Mr. Marquis, the first step is to assemble the bearings on our usual occasions. Put these munitions in first..."

While speaking, the craftsman used his other hand to pick up the selected steel marbles that had been polished and polished from a wooden bowl next to him, and filled them one by one into the staggered gaps between the rings. After filling up the eight pieces, they were filled, but all of them were concentrated on one side.

"Mr. Marquis is ready!" The craftsman picked up a wooden hammer and smashed it hard at the erected collar.

"Bang~"

The things on the entire workbench vibrated. The craftsman put down the hammer and lifted the bearings. What appeared in Chen Xu's eyes was indeed a perfect bearing with neatly arranged marbles. The inner and outer collars were tightly sewn between the inner and outer collars, and the steel marbles were not loose in the grooves between the two collars.

Chen Xu grabbed the inner and outer collar with his hands and broke it hard a few times, and found that it was very firm and could not be disassembled with brute force.

It's such a big deal, what the hell is this?

Are bearings also afraid of being beaten?

Chen Xu felt a lot of chaos at the bearing that was perfectly successful after a hammering. He looked blankly for a while and then put it down and said, "Let me assemble one and try it!"

The craftsman immediately moved out of the position and handed Chen Xu a pair of polished collars. Chen Xu also held the collar with one hand and filled the other with steel bullets. After the filling, the craftsman carefully reminded him: "Mr. Marquis, use two fingers to slightly lift the collar in the middle, and then use a wooden hammer to hit the top, be careful not to hit the hand..."

Chen Xu nodded, picked up the wooden hammer and slapped it and smashed it down at the ring. With a bang, Chen Xu felt his left hand relax slightly. When he picked up the bearing, he found that the steel bulge inside had indeed been neatly embedded between the inner and outer rings.

"So that's it, so that's it~" Chen Xu finally understood how these steel marbles ran in by themselves.
Chapter completed!