Why are stepper motors made with different windings?

Question

Do it yourself

Some (almost all) manufacturers in the stepper motor line have models with the same power characteristics, but differ in operating current, winding resistance and phase inductance. Question - why? The model range of any manufacturer was born for a reason, demand creates supply, which means that there really are consumers who need one thing, but there are those who need another. Other things being equal, which one to choose? Which is better?

Answer 1

Depending on what you need, speed or moment. Well, the convenience of selecting for the available drivers.

Answer 2

More current more torque. It's simple.
Less current less inertia.
In general, it’s not easy, because there are power diagrams
. The serv moment is generally constant, the steppers have the maximum at the start

Answer 3

elementary watson :) use the motor of the voltage supported by the used driver.

Answer 4

why can’t they unify the power connectors for smartphones,
now, of course, without usb type-c = this is not a phone,
but remember the times of Nokia / Sony, etc.
where everyone sawed for themselves = charges are the same (the laws of electricity have not been canceled)
interfaces = different , this applies even to one manufacturer,
earlier, in the 60-80s. there was unification
And now the repair of electronics is not advisable at all