Can motor RPM Question
Can motor RPM Question
The can motor in my Weaver F7 is shot. I’ve found 3 replacement motors. One is 7,130 RPM, the next is 11,000 RPM, the last is 20,000 RPM.
Which one do in need? or does it matter?
Thanks for any help!!
Which one do in need? or does it matter?
Thanks for any help!!
Running that red block Charlie.
Re: Can motor RPM Question
I would go with the slowest one (7,000 RPM). Otherwise, your engine may take off, never to be seen again.
Yves
Yves
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Re: Can motor RPM Question
I put a slow Pittman in my Williams "J" - and have always been disappointed with a flashy passenger locomotive creeping around my loop.
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Re: Can motor RPM Question
Hey Jon,
Not to be a broken record but, it would help to know the gear ratio. Without it, I would go with the mid RPM.
Jay
Not to be a broken record but, it would help to know the gear ratio. Without it, I would go with the mid RPM.
Jay
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- Posts: 12850
- Joined: Sat Jan 13, 2007 7:57 pm
Re: Can motor RPM Question
So there you have it. Three motors, three different opinions from three hobbyists who actually build model locomotives. Here is the real solution:
Use my aircraft safety wire and Toyota tube trick, so you can change motors in three minutes, and test all of them. Choose the one that makes you happy.
Use my aircraft safety wire and Toyota tube trick, so you can change motors in three minutes, and test all of them. Choose the one that makes you happy.
- ScaleCraft
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- Joined: Thu Jan 26, 2012 10:15 pm
- Location: Floe Ice, Auntarctica
Re: Can motor RPM Question
Can't fully decipher the tag. Oil spot? And PB won't let me copy and blow it up.
But, a Mabuchi RS-550 series is just a tad over 19,000 RPM no-load.
Can't tell if that is followed by a 8 1 1, an S 1 1, or the 1 1 is an M
But, a Mabuchi RS-550 series is just a tad over 19,000 RPM no-load.
Can't tell if that is followed by a 8 1 1, an S 1 1, or the 1 1 is an M
Dave....collector, restorer, and operator of the finest doorstops
- ScaleCraft
- Posts: 6461
- Joined: Thu Jan 26, 2012 10:15 pm
- Location: Floe Ice, Auntarctica
Re: Can motor RPM Question
https://www.ebay.com/itm/High-speed-DC- ... 1936027442
specifically a SH.
https://www.robotshop.com/en/rs-550-mot ... oz-in.html
no SH suffix, 19,300 RPM
But, it seems Mabuchi part numbers aren't designed to make sense.
The Mabuchi 550 is made from 1.2V to mains (240V) windings and used in everything from screwdrivers to hairdryers
Each Mabuchi motor has a detailed model number (about 6 digits) which tell the wind, Magnets, Poles, brushgear etc . 550SH only tells us it is by Mabuchi, has the long armature (55mm long) (not sure what the SH is).
Specifications: (for reference)
1) Voltage: 6.0V (operating range: 2.4V - 36.0V)
2) Speed: 11,120rpm
3) Current: 1.15A
4) Stall torque: 532N.m (5,426g.cm)
5) Stall current: 82.5A
Mechanical features:
1) Out diameter: 35.8mm
2) Shaft diameter: 3.175mm
3) Body length: 57mm
4) Standard shaft length: 75, 80, 85mm
specifically a SH.
https://www.robotshop.com/en/rs-550-mot ... oz-in.html
no SH suffix, 19,300 RPM
But, it seems Mabuchi part numbers aren't designed to make sense.
The Mabuchi 550 is made from 1.2V to mains (240V) windings and used in everything from screwdrivers to hairdryers
Each Mabuchi motor has a detailed model number (about 6 digits) which tell the wind, Magnets, Poles, brushgear etc . 550SH only tells us it is by Mabuchi, has the long armature (55mm long) (not sure what the SH is).
Specifications: (for reference)
1) Voltage: 6.0V (operating range: 2.4V - 36.0V)
2) Speed: 11,120rpm
3) Current: 1.15A
4) Stall torque: 532N.m (5,426g.cm)
5) Stall current: 82.5A
Mechanical features:
1) Out diameter: 35.8mm
2) Shaft diameter: 3.175mm
3) Body length: 57mm
4) Standard shaft length: 75, 80, 85mm
Dave....collector, restorer, and operator of the finest doorstops
Re: Can motor RPM Question
Dang, Dave! You’re quite the can motor engineer!
I’m thinking the 11K RPM motor will be my best bet!
I’m just waiting for it to show up in the mailbox.
Check out how hideous this sounds!
https://youtu.be/VXI8w-vOXAI
Video with drive shaft removed:
https://youtu.be/Zj1NJ6sugdM
I’m thinking the 11K RPM motor will be my best bet!
I’m just waiting for it to show up in the mailbox.
Check out how hideous this sounds!
https://youtu.be/VXI8w-vOXAI
Video with drive shaft removed:
https://youtu.be/Zj1NJ6sugdM
Running that red block Charlie.
- ScaleCraft
- Posts: 6461
- Joined: Thu Jan 26, 2012 10:15 pm
- Location: Floe Ice, Auntarctica
Re: Can motor RPM Question
mab 550 seems to be a three pole. Mab 555 seems to be a five pole. Maybe.
LS PRC made garbage often use Mabuchis. Style favoured among one or two manufacturers costs twenty three cents apiece in bulk (or they did 20 years ago when I cared)
LS PRC made garbage often use Mabuchis. Style favoured among one or two manufacturers costs twenty three cents apiece in bulk (or they did 20 years ago when I cared)
Dave....collector, restorer, and operator of the finest doorstops
Re: Can motor RPM Question
My Weaver 4-4-2 with a Mubachi can motor doesn’t sound anything that bad!
The 4-4-2 can with shell off.
https://youtu.be/I2G0BxyvXik
Running:
https://youtu.be/Glw1LqXWZ9g
The 4-4-2 can with shell off.
https://youtu.be/I2G0BxyvXik
Running:
https://youtu.be/Glw1LqXWZ9g
Running that red block Charlie.
Re: Can motor RPM Question
2railjon wrote:Dang, Dave! You’re quite the can motor engineer!
I’m thinking the 11K RPM motor will be my best bet!
I’m just waiting for it to show up in the mailbox.
Check out how hideous this sounds!
https://youtu.be/VXI8w-vOXAI
Video with drive shaft removed:
https://youtu.be/Zj1NJ6sugdM
Jon,
We have a vacuum cleaner that doesn't make that much noise.
roger
I support thread drift.
If God didn't want women to be looked at, He would have made 'em ugly. RAH
I support thread drift.
If God didn't want women to be looked at, He would have made 'em ugly. RAH
Re: Can motor RPM Question
ScaleCraft wrote:Can't fully decipher the tag. Oil spot? And PB won't let me copy and blow it up.
But, a Mabuchi RS-550 series is just a tad over 19,000 RPM no-load.
Can't tell if that is followed by a 8 1 1, an S 1 1, or the 1 1 is an M
Dave, it is RS-550SH DB070813
----Wayne----
Back when I was growing up, if you didn't start someth'n, there wouldn't be noth'n.
--Merle Haggard
Back when I was growing up, if you didn't start someth'n, there wouldn't be noth'n.
--Merle Haggard
Re: Can motor RPM Question
2railjon wrote:Dang, Dave! You’re quite the can motor engineer!
I’m thinking the 11K RPM motor will be my best bet!
I’m just waiting for it to show up in the mailbox.
Check out how hideous this sounds!
https://youtu.be/VXI8w-vOXAI
Video with drive shaft removed:
https://youtu.be/Zj1NJ6sugdM
Just can't please you guys! You get "SOUND" for free, and all we hear is gripe, gripe. gripe!
- ScaleCraft
- Posts: 6461
- Joined: Thu Jan 26, 2012 10:15 pm
- Location: Floe Ice, Auntarctica
Re: Can motor RPM Question
https://www.mabuchi-motor.com/product/k ... tions.html
Round motor, carbon brushes, medium large armature diameter, unquantified housing length, three poles, anisotropic magnet or rare earth, and a particular specification unpublished.
Armature wire diameter and number of turns hard to determine.
The RS-550SH no longer shows up in their search function. There are contact numbers on the website.
Round motor, carbon brushes, medium large armature diameter, unquantified housing length, three poles, anisotropic magnet or rare earth, and a particular specification unpublished.
Armature wire diameter and number of turns hard to determine.
The RS-550SH no longer shows up in their search function. There are contact numbers on the website.
Dave....collector, restorer, and operator of the finest doorstops
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