hi

i am abh34

i am new here

i am very passionate abt robotics but the prob is that i know nothng of t

i was going thru the gear tutorial and have a couple of questions

firstly,

if i have 2 sprocket gears (90% efficiency) one of radius 4cm and other of 1 cm

they are connected

suppose i rotate the bigger gear at 50 rpm, so since the gear ratio is 4:1 then the smaller gear shud rotate at 200rpm

but the gears have 90% efficiency

so will the smaller gear have rpm of 90% of 200= 180

i just wanna ask that am i right in saying that the small gear will rotate at 180 rpm???

also ,

i have read sumwhr in tutorial that the greater the radius of wheel the less the torque.

but isnt torque= force x radius

then how??

thnx