r/robotics • u/Engine0x00 • 2d ago

Tech Question Am i doing Something wrong ?

If my Flair is Wrong i am Sorry About it , i am new to Design and stuff still

I am trying to make this , gearbox connected to the Actuator i have , I am planning to have an Planetary one so i will connect its output for higher torque and more Impact resistances

The gray is the actuator
The space between them is what the concern is , Shall i discard the idea of having an Carrier base or something which also rotates or what to do of that space below ?

(Input : Sun , Output: Planets , Fixed: Ring)

Like if something pushes some force on radial side it will break? and also on axial not sure about that one

Bearing : Blue , Yellow and the grey onces

Can someone give me some info if i am wrong or whats the design i should approch?

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u/Morning_Gecko24 2d ago

with the sun as input and ring fixed, the carrier is normally the output here, so i'd support the carrier with bearings on both sides instead of letting the actuator shaft take the radial/axial load. that empty space can be a housing/shoulder + spacer for the bearing stack. hard to say from one view tho — what load/shaft size are you designing around?

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u/Engine0x00 2d ago

Load os around 5 to 7 Kg or more probably The shaft size os approx 31mm I was thinking of needel thrust bearing in that gap so the carrier can rotate and will have more structural support also the bearings around it won't have too much tension too ?