Can I use a double helical pinion with a herringbone gear?
Can I use a double helical pinion with a herringbone gear?
(OP)
At one of the plants they are asking me the following:
They have a NEW double helical pinion (it has a gap in the middle) and they have a USED herringbone gear.. You can see where this is going...
They are supposed to be same pitch, et cetera... However, I have not seen before a double helical pinion with a herringbone gear. I am no expert in gears, and so I could not think of a reason why it can't be. So, is this possible? Are there justified reason against this mixed match??
Photo of pinion is not actual pinion, but very similar
https://files.engineering.com/getfile.aspx?folder=...
Photo of gear is the real gear
https://files.engineering.com/getfile.aspx?folder=...
Regards,
JM
thread406-77165: herringbone gear, a proper term
They have a NEW double helical pinion (it has a gap in the middle) and they have a USED herringbone gear.. You can see where this is going...
They are supposed to be same pitch, et cetera... However, I have not seen before a double helical pinion with a herringbone gear. I am no expert in gears, and so I could not think of a reason why it can't be. So, is this possible? Are there justified reason against this mixed match??
Photo of pinion is not actual pinion, but very similar
https://files.engineering.com/getfile.aspx?folder=...
Photo of gear is the real gear
https://files.engineering.com/getfile.aspx?folder=...
Regards,
JM
thread406-77165: herringbone gear, a proper term
JM
RE: Can I use a double helical pinion with a herringbone gear?
RE: Can I use a double helical pinion with a herringbone gear?
https://files.engineering.com/getfile.aspx?folder=...
Furthermore, this type of motors tend to align with their magnetic center (some is absorbed by the pneumatic coupling), but this also causes an axial movement.
My question is, should the fixed side be on the other side of the shaft? or better yet, why have a fixed side at all if the pinion is the one that holds the pinion shaft from moving axially
Regards
JM
RE: Can I use a double helical pinion with a herringbone gear?
Regarding your sketch, the blue pinion is shown as a herringbone, and the green gear is shown as a double helical. The relative angles (left hand/right hand) of the teeth are also not shown correctly. The left hand helical pinion teeth should mesh with right hand helical gear teeth. Not clear how the gear bearings are arranged.
RE: Can I use a double helical pinion with a herringbone gear?
RE: Can I use a double helical pinion with a herringbone gear?
You are right about the sketch, I guess it did not help to clear things... I hope this can clarify better
https://files.engineering.com/getfile.aspx?folder=...
@lukin1977
The gears are used for an open transmission of tubemill
We checked and the mill has an axial displacement of 44mils. Is not clear where is the movement coming from. Feed in one direction and transmission on the other?
Regards,
JM