Worm Gear Reducers...Stepper Motor Combos

Hello

I have been looking on your website for a NEMA23 Sized Worm Gear Reducer in the 40:1 or 60:1 range…

I see them all over Ebay and the others sometimes called out as NV030 Gear case … typically aluminum castings, 11mm keyed input shafts, 14mm Hollow shaft keyed output shaft coming with NEMA 17 or NEMA 23 sized bi-polar Stepper motors…Some come with NEMA23 motors and 14mm shafts for the output…

My application requires 1 RPM at the Output shaft of this NV030 sized gear case so Ii was thinking a 40 to 60 : 1 ration gear case driven by a NEMA 23 Stepper (bi-polar 4 wire unit) being able to spin at 40-60 RPM at the input shaft of the gear case… Assume Steppers can run strongly at this lower RPM vs the higher RPM’s ?

Do you have anything that would do this speed … I have seen on your website some NEMA 23 Planetary offset shaft systems but the RPM is too high at the output shaft for my needs… Can you run this stepper motor slower to get the 1 RPM output?

I was thinking of the 40 - 60:1 NV030 style gear case coupled with your planetary parallel shaft NEMA 23 (3333 oz-in) Stepper reducer to get the 1 RPM I need with a little bit of headroom if I need to pump it up a little more during my testing.

Also related to the Bi-Polar stepper motor … do you sell a PWM standalone controller that would drive and control the speed of this motor … eventually i will use some sort of Arduino system with a H-Bridge motor driver along with adding I/O at a later date but for today I need a simple controller to kick out the pulses…

Your help needed … Please let me know if you need further input on this.

Brian

Hi Brian,

Usually when using a gearbox on a stepper it’s to get higher torque.
Since stepper do not have a RPM like DC motor but rather travel from one step to the other and can be set for 1/16 of a step most of the time.

HEREis one example.

What do you need exactly in term of torque ?

:slight_smile: