Rover wheel quick numbers

$_57

I’m making quick numbers for a slow rover but I want to know if the motors I’ve choosen will be good enough.

A wheel has 95mm diameter, so its perimeter is 2 pi * 95/2 mm so in one revolution it advances pi * 95 mm = 298.45mm . Aproximately the long side of a A4 paper.

I will probably use JGA25-371 DC 25 rpm motors. 25 rpm = 25 revolutions per minute so in one minute it advances 25*298.45= 7461mm = 7.4 meters (two cars) and in 1 second it advances 124.4 mm, the diameter of a DVD aproximately.

For the 41 rpm one it would be 41*298.45= 12236.45mm = 12 meters (three cars) and in 1 second it advances 203mm, the short side of an A4 paper.

Wheel:

http://www.ebay.es/itm/4pcs-12mm-Hub-Wheel-Rim-Tires-for-1-10-Off-Road-RC-Rock-Crawler-Buggy-Truck/281829885771?

RC 1: 10 Rock Crawler
OD: 95mm/3.74″
ID: 45mm/1.77″
Hexagon coupling: 12mm/0.47″
Tires wide: 36mm/1.46″

Motor:

https://www.openimpulse.com/blog/products-page/25d-gearmotors/jga25-371-dc-gearmotor-encoder-25-rpm-12-v-2/

http://es.aliexpress.com/item/2pcs-JGA25-371-DC-Gearmotor-with-Encoder-41-RPM-at-12-V/32289338412.html

Model:JGA25-371 Parameter
Voltage No Load Load Torque Stall Reducer Weight
Workable Rated Speed current speed current Torque Output Torque Current  Ratio Size Unit
Range Volt.V rpm ma rpm ma kg.cm W kg.cm A 1:00 mm g
 6-24V 12 41 46 32 150 2.5 1.25 12.5 1 103 23 89
6-24V 12 25 46 20 150 4.2 1.25 21 1 171 25 91

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