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11-18-2010, 01:28 PM
| #1 |
| Quarry Creeper Join Date: Jul 2008 Location: Erin, Ontario, CANADA
Posts: 471
|  7T Cobalt motor
Thinking of trying these motors in my 2.2 comp rigs: COBALT MOTOR PROMAX 15 07  Very powerful Cobalt DC motor. It is an 05 class motor. Comparable in power to a 25-30 class glow engine. This motor is an OEM item, and is new, without retail box. The motor comes with a Deans connector installed. The output shaft has also been OEM modified with a flat machined the length of the exposed shaft. This will aid greatly in securing hub set screws to the shaft.Peak watts with 12 cells @ 35amps is 504 watts! SPECIFICATIONS PROMAX 1507 Winding 7 Wire Gauge 20 Length, in 2.55 Diameter, in 1.32 Weight, oz 6.5 Shaft Dia., in 5/32 Max # of cells 12 Max Current 35 Typical # of cells 7-10 Test prop . 7x6 Test Voltage 8.5 Static RPM 12,500 Static Amps 27.5 Static power, Watts 234 Static thrust, ozs 32 Motor Constants KV (rpm/volt) 1834 Rm, Ohm .049 Io, neutral no load current 3.0 Comments anyone?? Narly1 |
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11-18-2010, 01:31 PM
| #2 |
| I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
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In what truck? I run a similar motor in my Ax10 based rock racer and it is a LOT of fun! Plenty of torque and wheelspeed. These motors are parts breakers! |
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11-18-2010, 01:37 PM
| #3 | |
| Quarry Creeper Join Date: Jul 2008 Location: Erin, Ontario, CANADA
Posts: 471
| Quote:
Narly1's FF-4 build Narly1 | |
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11-18-2010, 01:49 PM
| #4 |
| I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
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You might want to verify that the motor will fit in the FF4.....IIRC, those motors are around 2.5" in length (from mounting surface to endbell)...
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11-18-2010, 01:57 PM
| #5 | |
| Quarry Creeper Join Date: Jul 2008 Location: Erin, Ontario, CANADA
Posts: 471
| Quote:
Good point, thanks for thinking ahead for me! Narly1 | |
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11-18-2010, 02:04 PM
| #6 |
| Pebble Pounder Join Date: Apr 2010 Location: Olympia
Posts: 116
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if it will fit how can you beet the deal for only $40. I am looking at buying one now  |
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11-18-2010, 02:11 PM
| #7 |
| Quarry Creeper Join Date: Jul 2008 Location: Erin, Ontario, CANADA
Posts: 471
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Awwwwh crap! According to post #12 in Underground Crawlers FF-4 "Frame Forward" Chassis she's no a gonna fit. File 13 that idea, LOL! Narly1 |
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11-18-2010, 02:39 PM
| #8 |
| Rock Crawler Join Date: May 2009 Location: 354
Posts: 670
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wow, I want that motor, question thou. Would that fit an SCX10 based truck?
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11-18-2010, 04:37 PM
| #9 | |
| Quarry Creeper Join Date: Jul 2008 Location: Erin, Ontario, CANADA
Posts: 471
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You need to compare the published specs for the length and diameter of the motor to the space available in your vehicle. Narly1 | |
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11-18-2010, 04:50 PM
| #10 |
| owner, Holmes Hobbies LLC   Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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Shaft diameter is 4mm of the motor, but otherwise they are hoss.
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11-18-2010, 06:08 PM
| #11 | |
| Quarry Creeper Join Date: Jul 2008 Location: Erin, Ontario, CANADA
Posts: 471
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I wondered how long it would take you to chime in. LOL! Narly1 | |
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11-18-2010, 06:18 PM
| #12 |
| I wanna be Dave Join Date: Dec 2008 Location: Madrid, IA
Posts: 2,015
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no 1/8in is about 3.18mm not almost 5mm so they are larger tan standard any if says the shaft diameter is 5/32"
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11-18-2010, 06:26 PM
| #13 |
| I joined the Band! Join Date: May 2009 Location: lake county ,florida
Posts: 1,237
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I have this motor and it is a beast |
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11-18-2010, 06:38 PM
| #14 | |
| Rock Crawler Join Date: Sep 2008 Location: Delta B.C.
Posts: 554
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as for the shaft size you will have to bore out a standard pinion or find a supplier of 4mm bore pinions that are the correct pitch i have a holmes 7 and a 10..both killer motors | |
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11-18-2010, 07:18 PM
| #15 | |
| Quarry Creeper Join Date: Jul 2008 Location: Erin, Ontario, CANADA
Posts: 471
| Quote:
Narly | |
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11-18-2010, 07:26 PM
| #16 |
| Quarry Creeper Join Date: Aug 2008 Location: Orange City
Posts: 203
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Anyone know of any suppliers for 4mm pinions?
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11-18-2010, 08:53 PM
| #17 |
| Quarry Creeper Join Date: Jul 2008 Location: Erin, Ontario, CANADA
Posts: 471
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Decided to buy a couple to play with...... Will likely have the exposed part of the armature shaft turned down to 1/8" so I can use standard pinions. Narly1 |
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11-19-2010, 05:20 AM
| #18 |
| RCC Addict Join Date: Nov 2009 Location: New Wilmington, PA
Posts: 1,234
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I'm sure going to pick one up at that price. Run it when I know I'm not going to get wet.
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11-19-2010, 07:56 AM
| #19 | |
| I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
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11-19-2010, 08:24 AM
| #20 |
| Rock Crawler Join Date: May 2009 Location: 354
Posts: 670
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do you guys have a link as to where I can order, sorry i'm a computer dummy  |
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Linear Mode
