Help for design a rack and pinion please.
Help for design a rack and pinion please.
(OP)
Hi to all,
I need some help, I have to design a rack and pinion, the only two parameters that I have are: linear velocity of rack and load to be drag by rack. What criteria should I have in mind to determine the most efficient: module, pitch diameter and teeth number (in rack and pinion)?
Parameters:
Speed: 4 m/min
Load: 2.5 kN
Material: I guess stainless steel is the best because it will be used in a humid environment.
Any help would be really appreciated!
Best regards,
John.
I need some help, I have to design a rack and pinion, the only two parameters that I have are: linear velocity of rack and load to be drag by rack. What criteria should I have in mind to determine the most efficient: module, pitch diameter and teeth number (in rack and pinion)?
Parameters:
Speed: 4 m/min
Load: 2.5 kN
Material: I guess stainless steel is the best because it will be used in a humid environment.
Any help would be really appreciated!
Best regards,
John.





RE: Help for design a rack and pinion please.
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RE: Help for design a rack and pinion please.
You did gear design in college, right? You have the force and speed, so you can figure out torque and ratios. This is a rather basic question.
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JHG
RE: Help for design a rack and pinion please.
IRstuff: No, this is not for school.
drawoh: I did, but all books (at least the books that I have checked so far says assume pitch diameter and teeth number).
I'm sorry if my question is too basic or too silly for this forum.
RE: Help for design a rack and pinion please.
Pick a module or diametric pitch. Pick some number of teeth. Do the analysis. Use a spreadsheet. No one gets this stuff right on the first pass.
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JHG
RE: Help for design a rack and pinion please.
RE: Help for design a rack and pinion please.
Power = Torque x angular velocity (in radians)
If you know speed and force and pick a gear diameter, you can determine how thick the gear needs to be to bear the torque.
RE: Help for design a rack and pinion please.
Do you have any info on the available input torque?
RE: Help for design a rack and pinion please.