- #1
cherish
- 20
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- TL;DR Summary
- Why does face width of a spur gear pair normally not equal?
Dear Physicsforum Mentors,
For a pinion and gear wheel, the face width instead of 12mm for both, it should be 14mm and 12mm.
The explanation I got is, when there's 0.2mm deviation in axial, then only 11.8mm width will be in meshing. later, when the system be worn out, that 0.2mm will be in meshing and making noise.
I just wonder if there's any other critical reason, rather than just to avoid of making noise as described above. Since by searching, I still see there're many spur gear pairs with the same face width?
Thank you for your taking time on reading my thread :)
For a pinion and gear wheel, the face width instead of 12mm for both, it should be 14mm and 12mm.
The explanation I got is, when there's 0.2mm deviation in axial, then only 11.8mm width will be in meshing. later, when the system be worn out, that 0.2mm will be in meshing and making noise.
I just wonder if there's any other critical reason, rather than just to avoid of making noise as described above. Since by searching, I still see there're many spur gear pairs with the same face width?
Thank you for your taking time on reading my thread :)