Loctite Advice

[Britflyer]

I have some bearings that I may need to install in a headblock that are a 'sloppy' fit.

Which retaining loctite would you reccommend?

From my research so far the Loctite 6XX series looks the stuff, but which one there are loads of different ones.

Any ideas?


Regards

Paul

[Asid]

Hi

You may want to try using RC-609 green Loctite. Also see if you can get some Loctite primer-T. Apply it to both parts and wait about 10 min. before using the RC-609.

This will give a very strong bond. Or just clean the surfaces with spirit.

If you have problems getting this then this would do

Loctite 638

"Maximum strength retaining compound. Used where high dynamic forces or cyclic loading is expected. Locks cylindrical assemblies with up to 0.25 diametrical clearance.
Approvals
• P1 NSF Reg. No.: 123010

Applications
Gives best resistance to dynamic, axial and radial loads. Recommended for retaining shafts, gears, pulleys and similar cylindrical parts.

Specifications
• Strength Required: High
• Handling Strength (at room temperature on steel joints): 5 min.
• Diametrical Clearance: up to 0.25 mm
• Temperature Resistance: 150°C


Hope this helps

[robgt]

I use the green stuff

Rite Lok RT38

Cheers,
Rob

[Britflyer]

I use the green stuff

Rite Lok RT38

Cheers,
Rob

Yeah, just there is green stuff and then there is green stuff. Being colour blind they all look the same to me, so I need numbers!


Paul

[robgt]

Good advice from Asid there I reckon

My bottle (in front of me now) says Rite Lok RT38 on the label. It appears to have the specs that Asid posted about 609.

Cheers,
Rob

[Craig33]

I use the RT38 stuff as well. Avaialable here from modelfixings. Scroll to bottom of page.

Only complaint is that it doesnt come with a screw/locking cap

[Britflyer]

Thanks guys, I've used Rite Lok stuff in the past, I think its just cheaper than the Loctite Brand.

Cheers

Paul

[xygax]

I use 638 for bearings .... Warning its a bit of a booger to release when you want the part seperated from bearing !

Steve

[163phil]

You're not using a big enough hammer Steve

[Andy from Sandy]

I use 638 for bearings .... Warning its a bit of a booger to release when you want the part seperated from bearing !

You might want to try 641 as an alternative. Same family for sticking bearings but specifically designed where disassembly is required.

[Steve]

I got some 638 as well, and it sticks well but is a sod to get undone.

Like the sound of 641 as an alternative.

[Andy from Sandy]

I got some 638 as well, and it sticks well but is a sod to get undone.

You need to apply localised heat upto 250 degrees C and disassemble whilst still hot.

http://65.213.72.112/tds5/docs/638-EN.pdf

[Sqwidge]

I got some 48 but not sure about its specs compared to others

[Steve]

You need to apply localised heat upto 250 degrees C and disassemble whilst still hot.

http://65.213.72.112/tds5/docs/638-EN.pdf

Says exactly the same for 641

http://65.213.72.112/tds5/docs/641-EN.pdf