Timing pulley/coupler/shaft for servo

Help & Support Robot Parts
1

Hello all, new user here.

I’m looking to get a little help with finding the right servo attachment parts for a project I’m working on. The servo in question is a no-name, high torque model, so I don’t know a whole lot about its physical properties other than the fact that it has a 25T plastic spline.

I’m looking to find answers to the following:

A.) What would I need in order to attach a timing pulley to it? So far my guess is something like this:

Servo spline -> shaft coupler -> shaft -> timing pulley

Is this correct? I’ve seen pulleys that attach to the servo spline directly like a standard horn, but I would rather have the ability to extend outward with a shaft, as indicated.

B.) Does name brand matter in this case? Are 25T spline connections pretty standard across manufacturers?

Thanks for any insight!

2

Most of the servos out there with 25T splines are Futaba brand splines.
If that’s the case, you can get the Lynxmotion MXL servo pulley here:
Lynxmotion Servo MXLS-02 Timing Belt Pulley - 32 Tooth (Futaba)

Here are two MXL belts:
8" MXL Timing Belt
25" MXL Timing Belt

:slight_smile:

3

Thanks for pointing me in the right direction and for the belt links as well, DiaLFonZo! I was originally thinking I might want to go with a coupler/shaft assembly for the pulley, but this direct-to-spine pulley might actually work out better with the new plan I am going with. Much appreciated!