Да на этой бабуле весь завод держится ;)

​@Knight Ofthenight you mean North Koreans?

@Knight Ofthenight когда США перестанут убивать мусульман

Hai👍antonmursid🙏👌🤝

Used for guide bushings primarily in metal stamping dies and other industrial plant machinery in the manufacturer of automotive and equipment parts, etc. As a tool and die maker, we use these by the thousands

@@treemanclint2883 why they cannot use grease or oil and why do you have to use that many do they wear out quickly ? Thank you.

ChatGPT: Guide bushings are cylindrical components that are commonly used in metal stamping dies to guide the punches and dies in the stamping process. These bushings are typically made of hardened steel or other materials that can withstand the high pressures and forces involved in metal stamping. In metal stamping, a metal sheet is placed between a punch and a die and is then subjected to high pressure. The punch and die move relative to each other, and the guide bushings help to ensure that this movement is precise and controlled. The guide bushings are positioned on the die and punch plates to guide and stabilize the punch as it descends to deform the metal sheet. Guide bushings are critical components of metal stamping dies, as they help to ensure that the stamped parts are produced with high accuracy and repeatability. Without guide bushings, the punch and die may move off-center or become misaligned, resulting in scrap parts, tool damage, and decreased production efficiency. In summary, guide bushings are primarily used in metal stamping dies to guide and stabilize the punch and die as they move relative to each other during the stamping process, ensuring accurate and repeatable production of stamped parts.

Your bathroom exhaust fan motor has a brass bushing on the shaft for fan blade

@@1Esteband They do use lubricant, but it's added after installation and during periodic maintenance if the machine doesn't have a continuous oiling system. That's what the holes and grooves are for on that shorter one. Some brass and bronze bushings are impregnated with oil from the factory.

Под американцами😂

@@user-ij8px5jq4m tbh who's not under the yankees?

@@kiwidodo9476 Russia and many other countries are not under the yankees.

​​@@pastortt4167and it is became a s&it hole country(. What a shame

That’s a fact!

They actually wear shoes in Korea.

Better footwear.

India is a 3rd world country, believe it or not.

Absolutely. Sometimes i even find the indian a bit more interesting because i wonder how you weld up and hone an ageold motor block somewhere on the ground on the streets.

ベアリングとブッシュ勘違いして無い。 ノギスの使い方・内径の測り方最悪、測り方知って無い。

There is another brand called Oil lite don't know the country or if they are still in business.

@@davidgoodrich4745 Hi,Oillite bearings now manufactured by Bowman of Kingswinford

Здорово из Омска !

I think that's self lubricating graphite, though.

Причём с виду новые. Возможно, какие-нибудь обрезки с соседнего производства.

No heat treatment in video. In Russia using Cu + 1.2% Be. 1400 MPa.

Yeah that N95 dust mask the guy is wearing wouldn't stop various nasty vapors.

Испаряется цинк

You can buy even larger ones for 15 bucks a pop, so it's not too expensive. Still, I wouldn't want to be drinking out of a cup with graphite inclusions (the black circles).

They would be pressed into a bore of some type heavy equipment most likely, and a shaft or pin would slide or rotate in the brass bearing bore. The dark plugs (graphite or lead maybe) would help as a lubricant, along with oil or grease.

They are bearing for mega machines. The idea is the spinning hardened steel part the size of a car, doesn't spin directly in the steel housing the size of a house, because when it inevitably wears from spinning both would have to be replaced to high cost, this is instead inserted into the hole as a "liner" aka bearing so this brass part wears out first from normal wear and tear and can be replaced.

'Their' attention to detail. It's 'their'. Pay attention to detail.

@Milo Prager It's just a bushing for the bearing. This is not its final form as I understand it?

@Milo Prager Thanks for the information I'm really interested to know what it is

So you learned something new!

And now something completely new: have you ever heard of Lignum Vitae bearings, or Railko bearings, or Cutless bearings?

They are used everywhere in manufacturing, linear guides and everyone greases them as well, that is why there was a cross bore.

"Oil-free", in this case, means they do not require re-oiling through their lifetime.

@@Evocatorum Please do not emasculate me in front of the youtube comments.

Только вот я не понял , почему в якобы "безмаслянном" подшипнике снаружи и внутри делаются характерные кольцевые канавки с отверстием? Причем отверстие очень важным, раз ОТК его проверяет. Канавки такого вида - обычное дело на вкладышах подшипников скольжения. Ну а графитовые вставки ( мое предположение) нужны для более мягкого начала движения вала и малых оборотов, пока не сформировался масляный клин.

Эти втулки для крайненизкооборотистых узлов! А канавка нужна для стопорения втулки.

В России до сих пор травятся при переплавке. Я 13 лет отработал на канальных печах и в этом видео мне понравилась горизонтальная отливка. У нас машины полунепрерывного вертикального литья с охлаждением кристализатора водой. Сам процесс отливки очень древний. Литье с миксера в кристализатор через графитовую втулку под сажей или простые латуни под флюсом с октоборатом натрия/калия Засоров в слитке на сложных сплавах просто тьма а сплавы типа СКА и ЖКС очень часто трещали да так что происходило полное разрушение слитка, и все это улетало в приямок литейной машины и то еще удовольствие было чистить эти прмямки. Так что корейцы молодцы. Работают на высокочастотках и передовая отливка

@@volnii_kot тогда зачем аналогичная канавка внутри втулки? Её видно на последних кадрах, где втулки упаковывают в коробки. Получаются, наружная и внутренняя канавки соединены отверстием. Это больше похоже на систему смазки.

Интересно. Сколько он стоит

맨위댓글에 나왔어요

Подскажите а где применяются такие втулки?

@@user-gm9xg8xf5w линейные подшипники скольжения

It's a bearing that typically does not require additional lubricant such as grease or flowing oil during operation. They are self-lubricating, and largely maintenance free from the factory. These particular ones aren't oil-FREE, they are just oil-LESS. Oil-free would be a dry bearing that only use graphite, PTFE (aka Teflon), or similar slick material. The black plugs you saw them install are graphite. The material is often brass or bronze which is softer and slicker than the steel or chromed shafts they likely will support. The oil dip you saw towards the end also impregnates the material when they drew down the vacuum. Think like a sponge absorbing water. That oil will slowly leak back out during use as the bearing wears, lubricating the friction areas.

@@MrEgdurd "like a sponge absorbing water" Thank you for your help. I understand it completely.

It's a brass and Teflon bushing not a bearing

Waste.

Not copper!

Proprietary alloy is my guess

lack of proper material

Yes. And the bearing material is hardened bronze, not brass.

Тоже про это подумал.

these are the real lubricants. Once the bearing gets hot, they slowly melt and come out. Very effective at low speed.

Тоже интересно

Например пресс-формы для штамповки металлических кузовных деталей

наверное подшипники скольжения - втулки.

Экскаватор Вольво, втулки ковшевого

They ain't

You don't have a clue what you're looking at. These are oil-free aka self oiling bushings. Impregnated with oil so they don't require an external source of lubrication.

Was frustrating to watch the whole process only to see the packing butchered

Yeah I noticed that too. Yeah perhaps just wanted to get in on the video doing some measurements :)

well he is measuring the inner diameter for sure, not totally exact but good enough to see if its within spec for further milling.

Calipers can measure both external and internal diameters. Not with high precision, but good enough for that step in the process

It's quality control.

@@Happy357mag If they were smart they would measure the first and last piece, if they are good ,the chance of a difference between them is likely very small and wouldn't matter.. even if they would differ a little, they get machined after.. If they had such a problem with they tolerances from forming, they would make a bigger form.. So the guy measuring every piece was clearly just doing it because of the camera

Yes you are correct, there is oil but not in the normal manner. The black material in the holes became impregnated by vacuum process @ 12:19

Graphite

oil-free refers to maintenance, not the presence. They don't require additional lubrication throughout their service life; one and done

That's the sound electric induction furnaces make. I get the joy of listening to that sound all day, being a furnace/caster operator haha

A bush is a bearing, by definition.

In my country bush is not bearing

@@phothar2181Bushings, also called plain bearings, plain bushings, or sleeve bearings, reduce friction between two surfaces sliding against each other. Your "country" may not refer to them as bearings, but that doesn't make it so.

How much of a desperate conservative racist do you have to be to comment racist nonsense on videos that have absolutely no relation to it whatsoever. Do you seriously have no life beyond being vile in KZfaq comments?

Leaving them unguarded anywhere is questionable at this point. However, bronze is relatively unknown compared to copper and catalytic converters.

Diversity town. I see what you did there. 😂😂😂😂

We manufacturer Semi-Finished bi-metal thrust ped

Нерабов нет , есть рабы которым хозяева вдоволь костей отсыпают , а есть которым не додают .

После украины надо разбомбить этих корейцев