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Model Boats Website
Propshaft to Motor alignment
13 Posts · 10 Followers · 4 Photos · 34 Likes
Began 1 year ago by
Master Seaman
United KingdomFollow This Thread
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Latest Post 1 year ago by
Petty Officer 1st Class
United States( Newest Posts Shown First )
📝 Propshaft to Motor alignment
57 Views
Country: 🇺🇸 United States
Online: 11 hours ago
Online: 11 hours ago
I clamp my cylinder motors in place so: 1) make a center drilled actual size dummy motor and put the clamp on it. 2) install a long music wire for the prop shaft thru the dummy motor and temp alignment bulkheads on either side of where the motor goes. 3) Glue/screw/fix the motor clamp to the hull. 4) remove the music wire, the dummy motor and temp alignment bulkheads. 5) install the real motor in the clamp, slide your prop shaft in🎉
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Captain📝 Propshaft to Motor alignment
60 Views · 2 Likes
Country: 🇬🇧 United Kingdom
Online: 3 months ago
Online: 3 months ago
Hi bikerjohn
I make a solid joiner out of brass rod and drill and ream out to fit the motor and propshaft on my lathe.
Connect all up and adjust the shaft and fix the motor mount into alignment. When happy glue the shaft into position (I use plastic padding and roughen/degrease the shaft. Leave to set. Replace the solid joiner with a flexible coupling of your choice. If you have a lathe you can make your own.
This should ensure a correctly aligned motor and propshaft suitable for the fastest of craft. I also check my propshaft to make sure they are not damaged and run free and true. A flat pane of glass is useful to roll the propshaft to check. If it's not change it as it is unuseable.
dave976
I make a solid joiner out of brass rod and drill and ream out to fit the motor and propshaft on my lathe.
Connect all up and adjust the shaft and fix the motor mount into alignment. When happy glue the shaft into position (I use plastic padding and roughen/degrease the shaft. Leave to set. Replace the solid joiner with a flexible coupling of your choice. If you have a lathe you can make your own.
This should ensure a correctly aligned motor and propshaft suitable for the fastest of craft. I also check my propshaft to make sure they are not damaged and run free and true. A flat pane of glass is useful to roll the propshaft to check. If it's not change it as it is unuseable.
dave976
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MouldBuilder
Colin H
Commodore📝 Propshaft to Motor alignment
75 Views · 4 Likes
Country: 🇺🇸 United States
Online: 43 seconds ago
Online: 43 seconds ago
For all of my boats I use a double u-joint shaft. Most of them are the Dumas "dogbones" and never have had a problem. The Nylon shaft seems pretty tough.
Lew
Lew
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Len1
Colin H
stevedownunder
River Rat
Lew Zee (LewsModelBoats.org)
📝 Propshaft to Motor alignment
78 Views · 4 Likes
Country: 🇬🇧 United Kingdom
Online: 1 day ago
Online: 1 day ago
If you want to get your motor and propshaft aligned
perfectly, I suggest you purchase one of these
(link below).
They have various sizes to cover any motor/shaft variation, don't know what I would do without mine.
perfectly, I suggest you purchase one of these
(link below).
They have various sizes to cover any motor/shaft variation, don't know what I would do without mine.
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Colin H
stevedownunder
River Rat
pressonreguardless
Rear Admiral📝 Propshaft to Motor alignment
75 Views · 2 Likes
Country: 🇺🇸 United States
Online: 13 hours ago
Online: 13 hours ago
I have that coupler on my Typhoon, Dave
I also bought it from Rich at Mack.
It is a little noisy at high RPM.
Trev
I also bought it from Rich at Mack.
It is a little noisy at high RPM.
Trev
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stevedownunder
River Rat
📝 Propshaft to Motor alignment
84 Views · 5 Likes
Country: 🇨🇦 Canada
Online: 4 hours ago
Online: 4 hours ago
When you have done that a coupler is still preferable.
Have experimented with several types, the one on the extreme right shows the most promise.
The one next to it with the spiral cut works well, but is bulky and the shaft must be slide out to fit.
This one can be assembled is situ, is robust and allows a small amount of misalignment and vibration thus cuts noise down. Available through our friends at Aliexpress and Bangood
The others all have failings. The traditional Hookes joint style vibrate, wear and are noisy
Have experimented with several types, the one on the extreme right shows the most promise.
The one next to it with the spiral cut works well, but is bulky and the shaft must be slide out to fit.
This one can be assembled is situ, is robust and allows a small amount of misalignment and vibration thus cuts noise down. Available through our friends at Aliexpress and Bangood
The others all have failings. The traditional Hookes joint style vibrate, wear and are noisy
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Len1
dave976
stevedownunder
pressonreguardless
Colin H
Vice Admiral📝 Propshaft to Motor alignment
82 Views · 5 Likes
Country: 🇭🇺 Hungary
Online: 23 hours ago
Online: 23 hours ago
I always align and fix the motor height and angle using a solid joint between the motor and prop shafts. When the model is ready for motor trials, the solid joint is removed and replaced with a coupler made by Krick. They have two types of these, a standard and heavy duty parts. There is a flange to fix on each shaft. These are then joined by a splined, slightly flexible plastic joint which allows for slight mid-alignment and vibration. They are very useful units.
The picture is of a heavy duty connector.
Peter
The picture is of a heavy duty connector.
Peter
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dave976
bombero
stevedownunder
pressonreguardless
Colin H
I cannot promise to finish one project before starting another. I know, I tried.
Admiral📝 Propshaft to Motor alignment
77 Views · 5 Likes
Country: 🇬🇧 United Kingdom
Online: 11 hours ago
Online: 11 hours ago
best way is to use a solid connection and shim motor position to suit
see my blog
see my blog
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bombero
stevedownunder
pressonreguardless
Colin H
MouldBuilder
Chief Petty Officer 2nd Class📝 Propshaft to Motor alignment
86 Views
Country: 🇨🇦 Canada
Online: 8 days ago
Online: 8 days ago
Def use a U-Joint Coupler if possible and actually a double articulated coupler is ideal of there is much mis-alignment.
At times I have doubled up(back-to-back) individual U-Joint couplers to take up any variances.
Depending on which type motor mount, either hinged, or home-made, always allow for adjustment in the aligment.
At times I have doubled up(back-to-back) individual U-Joint couplers to take up any variances.
Depending on which type motor mount, either hinged, or home-made, always allow for adjustment in the aligment.
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📝 Propshaft to Motor alignment
87 Views · 3 Likes
Country: 🇺🇸 United States
Online: 18 hours ago
Online: 18 hours ago
This is a coupler from Mack rc industries. 5mm motor shaft to 3/16" prop shaft. It is hardened steel and made for high speed operation. I think it's a good choice and if you are slightly off on alignment it will take up any movement and greatly reduce vibration. Hope this helps,. Dave RR 👍
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pressonreguardless
Mike Stoney
Colin H
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