In the gecko's Choosing a Motor written:
And below:
anybody can help me with two questions ?
1) why answer is oz/in, not wattes?
2) how can it helps to choose motor - stepmotor manufacturers do not specify shaft power in manuals.
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Multiply the PPS value by the number of oz/in determined previously and divide the total by 4506.The answer will be how many watts mechanical are require motor to meet the load rom the application. |
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is an example of the equation completed for a load requiring 450 oz/in with a 3 TPI leadscrew and a desired IPM of 300. (300 * 3) / 60 = 15 15 * 200 = 3000 (3000 * 450) / 4506 = 299 oz/in 299 * 1.4 = 419 oz/in As you can see, you will want to use a motor with a rating of 419 oz/in for this application. |
1) why answer is oz/in, not wattes?
2) how can it helps to choose motor - stepmotor manufacturers do not specify shaft power in manuals.