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dentate wheels - number of teeth first and odd

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What changes in a pair of toothed wheels have a number of teeth first and/or at the same time equal or odd?

Thank you.
 
the odd toothed wheel or better yet first number allows you to have the effort on each tooth at each turn. if it is even will always work the same tooth of the motion with the same tooth of conduct even if it can be a fraction of turn. if one of the two wheels is first surely the other wheel sees different teeth always. they consume more regularly with a higher life.
 
meccanicamg said:
the odd toothed wheel or better yet first number allows you to have the effort on each tooth at each turn. if it is even will always work the same tooth of the motion with the same tooth of conduct even if it can be a fraction of turn. if one of the two wheels is first surely the other wheel sees different teeth always. they consume more regularly with a higher life.
Click to expand...
I quote and add that such problems had them the mercedes.
I don't remember which machine, there was a "unforeseen" break in the distribution.
when they analyzed the problem they realized that they had neglected the "good norm" to make gears with number of teeth that is first.
 
there an error of number of teeth in fiat if I don't remember badly they were recalled very many cars fiat stilo for the replacement of the gear or pulley dentata better say the second built in plastic material that broke getting tragic things on the motor i.e. bending of the valves that beat in the head...
 
it is added that the use of wheels with odd teeth number or better even first (or at least not divisible among themselves) reduces the noise of transmission
 
Joshua662 said:
there an error of number of teeth in fiat if I don't remember badly they were recalled very many cars fiat stilo for the replacement of the gear or pulley dentata better say the second built in plastic material that broke getting tragic things on the motor i.e. bending of the valves that beat in the head...
Click to expand...
I am not aware of the specific case, but the fiat on the 1.9 mjet engines mounts belt transmission.
that breaks not exclude it (even if it was famous the opel with engines 1.4 and 1.6 gasoline for problems like this), that breaks because the pulley had not number of odd teeth seems a bit exaggerated.
consider that if you want a 1:2 relationship as in the distribution... some gear must be not first ... :smile:
 
Joshua662 said:
http://www.omniauto.it/forum/index.php?showtopic=48390This is one of the many who had the problem that I said, but how do you plan an absurd Tamlemte thing? mha...
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to continue the topic
I can't see the link, from the office the proxy blocks me, but I imagine the problem
I break a spear, as it mounts the same engine, in favor of the manufacturer.
I've seen a couple of examples for the workshops. from new and original distribution belts disintegrated after 5'000 km to engines that have made over 150'000 without any maintenance.
between extremes, there are all normal cases
But...
I agree with you that sometimes houses, to save themselves 50€ of "costo" production use rather unlikely solutions and that generate damage from thousands of €uro to the end user
It must be said that the cause of these damages is not always easy to detect, unless there is a blatant admission of guilt of the building house and even in that case I would have doubts.
that tell me that the pulleys are bad and break, I can grant it. on the undiscussed dimensioning, they may have disposed to the inverosimile. if they tell me that they broke because the teeth are 36 instead of 37 (which is a first number), personally I begin to feed some serious suspects....
otherwise I would go to count the number of blades on turbines or the number of holes on brake discs. and explain why there are alloy circles (well more solicited) that have 4 races and do not break.. .
It gives me the idea that mechanics occasionally find imaginative answers to problems whose cause is much easier. . .
 
I feel like quoting the last mbt post.
I've never heard of this first thing, and I find it very interesting. However, without reading the discussion I would have come to an opposite conclusion. i.e., if the teeth of the wheels are multiple between them, they always meet the same teeth, so after making the face, wear is less. vice versa, if all teeth meet all, the imperfections of each "work" all others, increasing long to go the games.

It will not be so, but starting to read I gave this answer, then going forward I saw that you said the opposite. If a mind like mine, which, however narrowly, is nevertheless trained to manage such problems, starting from the same data comes to diametrically opposite conclusions, it means that at least the benefit of the doubt should be granted. . .
 
Excuse me if I interfere with this interesting discussion...... so a toothed wheel with first teeth is a wheel that has an odd tooth number?????? both at itis and at university, I have never heard of this:confused::confused::smile:
 
maxstralis said:
Excuse me if I interfere with this interesting discussion...... so a toothed wheel with first teeth is a wheel that has an odd tooth number?????? both at itis and at university, I have never heard of this:confused::confused::smile:
Click to expand...
no, it can also have a first and equal number of teeth. what are the first even numbers? and why there can be no other:tongue:?
 
I care more if you know of the first even numbers... in comparison the neutrino hole becomes a joke
 
I said a chaplaint::biggrin:::biggrin: you are right fulvio ... I can not put the photos I made a toothed wheel in the workshop from me ....if you have facebook send me the friendship I can better show you pictures of the pieces:finger:
 
- "Go to Advanced Mode" button
- key with the thumbnail
- a new window opens: "choose files"
- file selection
- then press "load"

at this point when you do "send response" the image appears.
 
an example of gears having first and equal teeth is the lobe pump; will not have in profile to evolve, but surely always a gear is!...
 

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