PLANETARY GEARS why they are pretty cool

Epicyclic gears or Planetary Gear sets are explained in this video from how it works to why it is beneficial

[@agt155]

Helical gears impose axial loads ie gears will try and push apart along the shaft axis. Thrust bearings are required to cope with these loads which reduces overall efficiency and adds cost. One major advantage of planetary gear sets is tangential shaft forces are minimised reducing bearing load and thus increasing power transmission efficiency.

[@wheelitzr2]

This is only true with helical style gears. Straight cut gears do not have the tendency to push in the shaft direction

[@TheSilverShadow17]

​@@wheelitzr2 Gearboxes with straight cut gears are stronger and more durable than ones with helical gears but the drawbacks are present like with everything. The noise they make is one reason why they're not used in road cars and another is the cost. But for performance applications the tradeoffs are worth it.

[@WRSomsky]

That's where herringbone/double-helical gears come in. They balance the axial loads. en.wikipedia.org/wiki/Herringbone_gear

[@Stasiek_Zabojca]

@@WRSomsky Or two gears are used on the same shaft; one left helix and one right helix, so axial forces cancel each other. But it's not really a design for car gearbox.

[@steveflor9942]

The beauty of the Prius drive PSD (Power Splitting Device) A single planetary gearset! Configured this way: Sun gear - Motor/Generator #1 Planet carrier - ICE (4cyl gas) Annular gear - Motor/Generator # 2

[@depthsounderdave]

It’s a brilliant piece of engineering

[@rogehmcclung1461]

Thank you for this, short, sharp and to the point. My brain has a block against understanding gears but videos like this help.

[@logiclab7]

We are glad to hear that!

[@patrickfreeman8257]

I love these videos that are short and to the point.

[@freely_messy]

I already knew about it, but I found this video great anyways, and easy to understand. Great.

[@logiclab7]

Hey thank you, make sure to checkout other videos too. 😄

[@erwinarief4567]

excellent video...

[@logiclab7]

Thank you, we hope it was informative for you.😄

[@6dmiller]

Thank you for the useful reminder to drink water. Most videos remind me to do something else that is not so useful or important.

[@logiclab7]

We are glad 😃, keep watching.

[@joeclaveau519]

0:59 Ring gear is mislabeled as planetary gears. Great video!

[@logiclab7]

Yes, we have noticed that, but this is the most viewed video and we have got good support so we can’t take this one down.

[@charlesburgoyne-probyn6044]

Hedgecutters use a similar system to convert axial rotation into oscillations

[@dalesims1626]

2 or more planetary gear sets are the foundation of an automotive automatic transmission

[@1crazypj]

Not many comments for 20K views? Nice video, I'm going to watch a few more before deciding to subscribe. Thanks.

[@logiclab7]

Thank you, we are learning from every video and trying to make it better every time. Subscribe if we did give you and value. 😄

[@ardiansyah-8862]

dengan disebar sebarkan ilmu pengetahuan saya, saya tidak akan jadi bodoh. Justru itu cara paling jenius

[@crankhandle]

It was my understanding that straight cut gears are stronger and distributed load through the tooth evenly compared to helical but are noisy

[@logiclab7]

Helical gears have angled teeth so there are always almost equal pressure at some point of the gear which is perpendicular to teeth, which is not case in other one. Hope you liked the video.

[@wizardshome9686]

Turn the volume up

[@logiclab7]

Noted.

[@agroman77]

I like the way he doesn't ask for likes ... just go and have some water.

[@logiclab7]

It’s more important right?

[@tomvana4270]

Anyone else find themselves drooling?

[@hc8714]

they are cool but not strong enough in high power application.

[@logiclab7]

What is your opinion about better substitute?

[@wowgggearing]

planetarygears as differential?

[@logiclab7]

We will make explanation video on this topic soon

[@anands6127]

4:39 Surprised 😂

[@logiclab7]

But it is important 😉.

[@kez963]

Wait no planetary gear for bicycles? :P

[@logiclab7]

Actually it is used in some bicycles’s hub. 😁

[@fivish]

@@logiclab7 Sturmy Archer and Nexus use planetary gear sets.

[@user-nf8ly7sl6m]

Gearbox breaks cracked... 1U 1V 1Y 1N 1X

[@yourfriendlyneighborhoodin1559]

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