# Recent content by asoundha

1. ### Torque & Force required to slide a gate

Thanks a lot Tom, By the way the above data sheet has incorrect information about the motor. I had a chance to look at the motor carefully where in I noticed the sticker, which says 6 Amps, 24v, 34RPM, 36W. I do not know why, but I am considering the spec. on the motor. Seriously I never...
2. ### Torque & Force required to slide a gate

Thanks a lot Jack If u see the motor data sheet, It is already coupled with a gear box. The torque of the motor alone is 0.05Nm (According to my calc) but at the output shaft we get 4Nm after torque step up through gear box ( worm and worm wheel arrangement ). I think it would be better to go...
3. ### Torque & Force required to slide a gate

Thanks JACK. So according to your calculation the fore of 550N can be achieved with a 4Nm torque but there would be a compromise on velocity i.e. 4.9 cm/s. Since I am using a Rack & Pinion to transmit power what would be the gear ratio?. I came across many calculations and posts where there is...
4. ### Torque & Force required to slide a gate

So what I understand is that same torque will be available at pinion i.e. 4Nm. But there will a reduction in force. Calculation from 3rd post says output force will be 800N So when calculating for pinion i.e. T=F*r 4Nm= F * 0.035m...
5. ### Torque & Force required to slide a gate

I need proper equations and I need to understand it. All i have is a torque eqn. T=F*r So, 4Nm (o/p torque) = F * 0.005m (radius of o/p shaft) i get F=800N at the motor o/p shaft (after gear reduction) And i have another question. - If 4Nm torque is available at 0.005m shaft, what if I...
6. ### Torque & Force required to slide a gate

Greetings all, I am trying to build a sliding gate operator. I have this wiper motor which says, 24v dc, 64rpm, nominal torque- 4Nm. Max weight of gate to be 400kg, sliding on a steel rail (Not sure how to consider rolling resistance or Co-eff of friction) . Max pull force to be achieved by...