| |
| |||||||
 |
| | LinkBack | Thread Tools | Display Modes |
11-13-2008, 09:10 AM
| #1 |
| ~THE SCALE SHOP~ Join Date: Apr 2006 Location: KILLEEN TX
Posts: 10,056
|  55T+14:1 reduction+7.2v= what rpm?
anyone know what rpm this would produce? and what torque it would produce? basically im trying to find one of these http://www.servocity.com/html/3-12v_gear_motors.html to use with a 1:1 t-case on a scaler. from this thread it seams final reduction after spur/pinion/tranny etc the reduction is around 12-16:1 single output trans for use with t-case??? so basically i wanna see if i can get one of these on 7.2v to be the same wheelspeed and still be able to move the truck. possible? |
|  |
| Sponsored Links | |
| | |
|
11-13-2008, 11:12 AM
| #2 |
| I wanna be Dave Join Date: May 2006 Location: akron
Posts: 4,054
|
all those units are rated at there 12v max I dont think any of the units would be a good option unless the motor can be switched out to a standard 540, then you might have somethin. the big output is nice on them.
|
|
| |
|
11-13-2008, 12:33 PM
| #3 |
| PapaGriz Yo   Join Date: Apr 2004 Location: In the garage building the wife a crawler
Posts: 13,137
|
55T motors are about 950 rpm/volt. Good handwounds like the HHH's are about 980 rpm/volt. So on 7.2v the motor will spin: 950 x 7.2 = 6840 rpm With a 14:1 gear reduction the output shaft would spin: 6840 / 14 = 488.5 rpm To find torque, multiply the motors torque by the gear reduction but I don't know the torque output of a 55T motor. Gear reduction increases torque output.  |
|
| |
|
11-13-2008, 12:57 PM
| #4 |
| RCC Addict Join Date: Jan 2008 Location: Lake Michigan
Posts: 1,898
| Motor / Gear Calculators
Great Calculators. Plug in the 950kv for the 55T and the rest of your info. Could plug in your Tcase also. http://www.scriptasylum.com/rc_speed/_top_speed.html |
|
| |
|
11-13-2008, 05:07 PM
| #5 | |
| Rock Crawler Join Date: Dec 2007 Location: USA
Posts: 627
| Quote:
dude that caculator is sweet!! ill have to try this on my dads 1:1 jeep and see if it works for 1:1s | |
|
| |
|
11-14-2008, 12:27 AM
| #6 |
| RCC Addict Join Date: Jan 2005 Location: Germany north
Posts: 1,669
|
a cheap Integy 55T 7429rpm @ 7.5V and 7.5oz-in @ 8.5A search for Makita 125237-9 (2 speed tranny around $20) and 629817-8 (motor with pinion ) its a 2 speed tranny , first gear around 4:1 , second 16:1 , + 4:1 reduction/torque limiter unit the pinion fits 1/8" motor shaft |
|
| |
|
| |
Linear Mode
