Sleeves for motor shaft adapting.

[mikesndbs]

 

 

Hi all, hope everyone is well.

 

I have a project coming up and need to increase the size of some motor shafts to allow fitting into bigger gears and worms.

My dad always did this with brass tube but I am unsure of the best way forward.

I have motor shafts of 1mm needing increasing to 2 and 2.4mm (X04)

I also have some 1.5mm needing increasing to 2 and 2.4 as above.

Can anyone help me select the right metal tubes to do this please?

[kitpw]

Eileen's Emporium gives internal and external diameters for the tube sizes which they stock - https://www.eileensemporium.com/materials-for-modellers.

 

[mikesndbs]

22 minutes ago, kitpw said:

Eileen's Emporium gives internal and external diameters for the tube sizes which they stock - https://www.eileensemporium.com/materials-for-modellers.

 

 

That's great, so for my 1mm motor shaft going to 2mm I'd need this? Brass Round Tube 1.0mm x 0.5mm x 305mm (MT4)?

[John Tomlinson]

1 hour ago, kitpw said:

Eileen's Emporium gives internal and external diameters for the tube sizes which they stock - https://www.eileensemporium.com/materials-for-modellers.

 

Very helpful, thanks. Something I've been contemplating as well as Mike.

 

John.

[kitpw]

 

 

46 minutes ago, mikesndbs said:

Brass Round Tube 1.0mm x 0.5mm

I think Eileen's gives outside (OD) x inside (ID), so 2mm x 1mm to build out a 1mm shaft to 2mm - I'd give them a call (or email) to check! 

 

[ps - it may be necessary to warm the brass tube before fitting to a cold motor shaft, it could be too tight a fit otherwise.}

Edited April 23, 2022 by kitpw
postscript

[cctransuk]

46 minutes ago, mikesndbs said:

 

That's great, so for my 1mm motor shaft going to 2mm I'd need this? Brass Round Tube 1.0mm x 0.5mm x 305mm (MT4)?

 

Surely 1.0mm x 0.5mm implies 1.0mm OD with 0.5mm ID?

 

I'd expect 2.0mm x 1.0mm to indicate 2.0mm OD with 1.0mm ID.

 

CJI.

[Nile]

Yes, what is actually needed is BRT2010D , currently out of stock.

[johnarcher]

May I revive this thread to ask if anyone knows of a producer of a sleeve to make a 1mm shaft up to 1.5mm  other than brass tube, the idea being to be able to loctite a worm on it, so I think a steel sleeve would be needed?

[friscopete]

Many US motor/ regearers  use fishing line  sleeves .They work fine .a few quid for half a million or so if its any help .

[Red Devil]

2 minutes ago, johnarcher said:

May I revive this thread to ask if anyone knows of a producer of a sleeve to make a 1mm shaft up to 1.5mm  other than brass tube, the idea being to be able to loctite a worm on it, so I think a steel sleeve would be needed?

Tramfabriek do them, tho' in brass, I've used them with loctite and they've been fine.

They also sell on ebay too.....

 

[johnarcher]

3 minutes ago, Red Devil said:

Tramfabriek do them, tho' in brass, I've used them with loctite and they've been fine.

They also sell on ebay too.....

 

Thanks I'll look, I thought one needed steel to be present to activate Loctite 601?

[Red Devil]

2 minutes ago, johnarcher said:

Thanks I'll look, I thought one needed steel to be present to activate Loctite 601?

I think it's 638 I used, they are a very good fit too...