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angle reference design

  • Thread starter Thread starter np426
  • Start date Start date
Good evening,
I am continuing with the harvests at the table, which mating is advisable between the hole of the box and the sprocket package? 1,6 on both can it be okay?
always for sprocket-box package, as o-ring I chose This is but I do not find anywhere the size of its seat.

on shaft led side exit, seal and bearing are on the same section of the shaft... the bearing needs tolerance k5 while the gasket h11, is it okay to maintain that of the bearing or do a drain throat to have the two separate tolerances?
 
np426 said:
Good evening,
I am continuing with the harvests at the table, which mating is advisable between the hole of the box and the sprocket package? 1,6 on both can it be okay?
always for sprocket-box package, as o-ring I chose This is but I do not find anywhere the size of its seat.

on shaft led side exit, seal and bearing are on the same section of the shaft... the bearing needs tolerance k5 while the gasket h11, is it okay to maintain that of the bearing or do a drain throat to have the two separate tolerances?
Click to expand...
ra1.6 I would say that it is more than good for the envelope parcel tree input.

for the k5 h11 is normally a diameter only with a perpendicular line that indicates the two pieces. at a practical level a throat, i.e. a discharge for rectification, allows to get to do one and the other correctly.
 
meccanicamg said:
ra1.6 I would say that it is more than good for the envelope parcel tree input.

for the k5 h11 is normally a diameter only with a perpendicular line that indicates the two pieces. at a practical level a throat, i.e. a discharge for rectification, allows to get to do one and the other correctly.
Click to expand...
I'm sorry, I'm not very clear about how to proceed.
I create an exhaust throat where I indicated with the half-arms or just a vertical line at the table in the same position?
 

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np426 said:
I'm sorry, I'm not very clear about how to proceed.
I create an exhaust throat where I indicated with the half-arms or just a vertical line at the table in the same position?
Click to expand...
you either just do the vertical line or you better still do a throat between the two diameters.
the first one is quick but the one who has to rectify is struggling. the second is the best mode.

make the half moon of revolution.
 
found catalog that I use flumec qui .

for the throat... one is worth the other. The gorges have been withdrawn, so you can do whatever you want.
 
in standard industrial gearboxes no separation throat is performed between the diameter of the bearing seat and the diameter where the seal ring lip acts (of course when it is the same nominal diameter); generally use j6 for bearing seat and f7 for holding lip; f7 tolerance facilitates the introduction of the inner ring of the bearing. for the indication on the drawing it is sufficient to report a line of separation between the two diameters (more precisely tolerances) and to quote with reference to the tree line.
 
TETRASTORE said:
in standard industrial gearboxes no separation throat is performed between the diameter of the bearing seat and the diameter where the seal ring lip acts (of course when it is the same nominal diameter); generally use j6 for bearing seat and f7 for holding lip; f7 tolerance facilitates the introduction of the inner ring of the bearing. for the indication on the drawing it is sufficient to report a line of separation between the two diameters (more precisely tolerances) and to quote with reference to the tree line.
Click to expand...
Okay, I'll remove my throat and I'll put everything on the table.
Yes, for tolerance I have mistaken, rechecking on the skf tables for light loads, being the diameters <=17 the tolerance indicated is js5
 
on the shaft duct, where I place the spacer that does as a bearing for bearing and wheel, extending the bearing tolerance across the tree tract and I follow a tolerance for the spacer hole (if yes, what do I agree with it?) or divide as for the seal tract?
 
np426 said:
on the shaft duct, where I place the spacer that does as a bearing for bearing and wheel, extending the bearing tolerance across the tree tract and I follow a tolerance for the spacer hole (if yes, what do I agree with it?) or divide as for the seal tract?
Click to expand...
it would be good to make a diameter downloaded. to facilitate the entrance.
It makes no sense to make the cents for 150mm long when it is enough for 20....the rest -0,2/-0,3.
 
Since you have foreseen a unique diameter of the shaft, you should predict a value that takes into account the rectification overmetal (0.3 mm on the radius) and rectifies only the final tract corresponding to the inner radius of the bearing plus 1 or 2 mm for safety.
the spacer hole will provide 0.4-0.5 mm more(in diameter) than the diameter with overmetal.
 
TETRASTORE said:
Since you have foreseen a unique diameter of the shaft, you should predict a value that takes into account the rectification overmetal (0.3 mm on the radius) and rectifies only the final tract corresponding to the inner radius of the bearing plus 1 or 2 mm for safety.
the spacer hole will provide 0.4-0.5 mm more(in diameter) than the diameter with overmetal.
Click to expand...
so I keep d17 on all length, 3mm before the saddle with a vertical line and give useful tolerance for the bearing, while for the remaining length tolerance check 0, +0,6?
while for the spacer hole d17,4 +-1?

do you know which site/pdf where I can study geometric tolerances in the practical field? I know symbols and definitions but not having experience I don't know what are useful to pieces, with what values etc.
 
no, in practice keep diameter 17.5 (to make an equal value) except for the tolerance section that you will quota at 17 j6. the spacer hole will make it 18 mm.
np426 said:
do you know which site/pdf where I can study geometric tolerances in the practical field? I know symbols and definitions but not having experience I don't know what are useful to pieces, with what values etc.
Click to expand...
search the forum by typing: geometric tolerances; you will find discussions with various application examples.
 
you can take stock also from this design (post 15) of an intermediate pinion of a reducer, assimilar in part to your exit tree: Moreover, if you type in the network: Shared drawing reducing tree, in images you will find other applications.
 
TETRASTORE said:
you can take stock also from this design (post 15) of an intermediate pinion of a reducer, assimilar in part to your exit tree: Moreover, if you type in the network: Shared drawing reducing tree, in images you will find other applications.
Click to expand...
perfect thanks, because I saw that skf and schaeffler use two different approaches. . .
 

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