• This forum is the machine-generated translation of www.cad3d.it/forum1 - the Italian design community. Several terms are not translated correctly.

profile grooved 24 teeth tree change motor japanese motorcycle

  • Thread starter Thread starter soichirohonda
  • Start date Start date

soichirohonda

Guest
Good evening, everyone.
It's the first time I wrote here. After so many research on the net, I have not learned anything and I am a little demoralized . 50 years it is difficult to study. I arrive to the therefore and without whirlwinds. japanese motorcycle gearbox. the final part where the central hub of the clutch has a "millies" that I cannot frame one 8953 or iso 5482??? or din=? ?

I made a cast with hard rubber of the hub, cut calco and put in the scanner and obtained the following in the annex. 24 teeth. is not an evolving profile but, it is said smooth or parallel, is it? But I don't quail. the japs you know use standard to mm or inches? ....SCAN0008.webpclip.webp
 
I forgot: thank you and excuse the banality of questions, I am mechanical peritonee of passion.
 
Bye. Japanese use jis norms and measuring units are mm. there are some grooves, especially in automotrives starting from agma norms and then they are customized, so special facts, not to be reproduced with simplicity or to optimize the diameters of the tree.
being a hole cast will have the characteristics of the hole:
df2 =25,05 (nominal 25)
da2=23,04 (nominal 23)
♪
din 5480-2
module = 1
evolving hips.
Screenshot_20210103_202447.webp
 
meccanicamg said:
Bye. Japanese use jis norms and measuring units are mm. there are some grooves, especially in automotrives starting from agma norms and then they are customized, so special facts, not to be reproduced with simplicity or to optimize the diameters of the tree.
being a hole cast will have the characteristics of the hole:
df2 =25,05 (nominal 25)
da2=23,04 (nominal 23)
♪
din 5480-2
module = 1
evolving hips.
View attachment 60523
Click to expand...
I was looking at myself and I'm from the same opinion as mechanicalmg
 
Good evening and thank you. observing the lime, however, why do you say profiles to evolve? I was dealing with a topic of a tractor groove, power outlet, and I saw them well the profiles of the "ogive" groove of a gear tooth. It's just my impression or given the z24 is so little. The curvature you don't see? What evidence could I do to check? I have both the hole and the tree.

Thank you.
 
ps: when the tree ingrain hub between shaft tooth and hollow hub, there are about 4 tenths. maximum external diameter of 24.64 mm shaft with digital centesimal caliber. say 24.6 therefore.
 
soichirohonda said:
Good evening and thank you. observing the lime, however, why do you say profiles to evolve? I was dealing with a topic of a tractor groove, power outlet, and I saw them well the profiles of the "ogive" groove of a gear tooth. It's just my impression or given the z24 is so little. The curvature you don't see? What evidence could I do to check? I have both the hole and the tree.

Thank you.
Click to expand...
You see badly. is evolving. numbers are clear.
If it were a parallel flanked tree, there would be no such measure.
 
da1= 24,8.... clearly will be in poor tolerance to be mountable. I repeat what was previously identified.
 
soichirohonda said:
Good evening and thank you. observing the lime, however, why do you say profiles to evolve? I was dealing with a topic of a tractor groove, power outlet, and I saw them well the profiles of the "ogive" groove of a gear tooth. It's just my impression or given the z24 is so little. The curvature you don't see? What evidence could I do to check? I have both the hole and the tree.

Thank you.[/QUOT
Click to expand...
meccanicamg said:
da1= 24,8.... clearly will be in poor tolerance to be mountable. I repeat what was previously identified.
Click to expand...
if you are interested in a pdf
 

Attachments

I make note of humility, and besides sprinkling myself head of ashes, thank you very much, now I have at least one firm point . still thank you and goodnight, for now :)
 
meccanicamg said:
da1= 24,8.... clearly will be in poor tolerance to be mountable. I repeat what was previously identified.
Click to expand...
considering that the shaft of the.change for about 80% of its length is inside the motor and to bath of the motor oil (admissible temp.max I would say 110grade) to maintain sliding gears change but above gears on shafts change (and relative loads due to horses) of what tolerances of coupling we can talk about? 10 cents axially on the diameter of the trees (sliding?) thanks
 
PIETRO2002 said:
if you are interested in a pdf
Click to expand...
can I write you in private tomorrow? The table doesn't make me understand one thing but I don't want to swallow forums with stupid questions.
But if I don't read the table with diameter.nominal 25 I don't see z24 but 28 32 50... where am I wrong?
 
Keep in mind that the teeth on the outer diameter do not work and therefore there is air. centering coupling is on the sides of the teeth. depending on what you want to do you do a h7/g6 to flow sensitively, otherwise h7/f8 if you have to be free to flow under load... I mean, it depends on the application and if you make a tree or a base hole.

on industrial gearboxes you make tree e9 and hub h10....so it depends.
 
soichirohonda said:
can I write you in private tomorrow? The table doesn't make me understand one thing but I don't want to swallow forums with stupid questions.
But if I don't read the table with diameter.nominal 25 I don't see z24 but 28 32 50... where am I wrong?
Click to expand...
the page that attached you is the other norm....and there is not your channel. it was just to see that it is evolving and not flat.

here is:
Screenshot_20210104_003351.jpg
 
soichirohonda said:
can I write you in private tomorrow? The table doesn't make me understand one thing but I don't want to swallow forums with stupid questions.
But if I don't read the table with diameter.nominal 25 I don't see z24 but 28 32 50... where am I wrong?
Click to expand...
Good day,
as you see the fantastic mechanicmg has already provided you with all the information in an exhaustive way! If you need more, we're here!
 
meccanicamg said:
Keep in mind that the teeth on the outer diameter do not work and therefore there is air. centering coupling is on the sides of the teeth. depending on what you want to do you do a h7/g6 to flow sensitively, otherwise h7/f8 if you have to be free to flow under load... I mean, it depends on the application and if you make a tree or a base hole.

on industrial gearboxes you make tree e9 and hub h10....so it depends.
Click to expand...
ok understood, the tolerances I just "studied" on book hoepli thank you
 
therefore recapitulating: even if they seem straight they actually have "bombing" typical of the tooth profile of a gear.
See Annex20210104_085901.webp20201228_174729.webp
 
PIETRO2002 said:
Good day,
as you see the fantastic mechanicmg has already provided you with all the information in an exhaustive way! If you need more, we're here!
Click to expand...
I have had many answers from you and above all with references and bells in the air. nice forum really. I didn't know
 

Forum statistics

Threads
44,997
Messages
339,767
Members
4
Latest member
ibt

Members online

No members online now.
Total: 1 (members: 0, guests: 1)
Back
Top