Hi,
I want to ask about applying loctite. If I want to joint housing spherical bearing (made from alumunium 7075) with steel AISI 4130. Loctite what type should I use ?
Thanks,
Ninda Kurniadi
(Garuda UNY Racing Team)SPT depan 2.jpg
Hi,
I want to ask about applying loctite. If I want to joint housing spherical bearing (made from alumunium 7075) with steel AISI 4130. Loctite what type should I use ?
Thanks,
Ninda Kurniadi
(Garuda UNY Racing Team)SPT depan 2.jpg
I use a loctite called "bearing retainer" or similar, and I'm not too fussy about it. Google shows this could be 603 or 641 or 620 or a few other options. It's just used to remove movement between the spherical bearing and it's housing. The bearing is still held in place with a circlip. If the housing is machined correctly you won't need much of it, and that's why I need alot of it.
University of Tasmania (UTAS)
It looks like you might be trying to join aluminum (bearing housing) to steel (a-arm tube) with Loctite bearing retainer???? Do not do this! It's not a structural bonding agent!
Maybe I'm the one that's misunderstanding, but I think Jonny might have thought you were talking about fixing the spherical bearing into the housing, not the housing into the a-arm tube!
Penn Electric Racing
Yes, I was mistaken sorry. I don't know anything about bonding metals. If it was me I would only use similar metals and weld it. I have never relied on adhesives for mechanical parts, and you shouldn't need to with metals. I would have thought adhesives are only required for carbon tubes. For metals, a press-fit will be better than glue.
University of Tasmania (UTAS)
Ninda,
I, too, was thinking along the same lines as Jonny's first post. But I have now had a closer look at your jpg-attachment. Aaaackkk!!!!!
Even if you make your wishbones all-welded-all-steel, the above You-Tube clip will still apply to your bolt-on steer-arm. And to your steering-geometry/upright-design. And to the brake-disc, which is the wrong way around...
Z
If I want to joint alumunium 7075 with steel tube AISI 4130. Besides welded, can use any way ?
Many Thanks,
Ninda
Ninda,
You could probably use an epoxy bonded joint, but most teams make the bearing retainers out of steel and weld them to the tubes. I would put a lot more trust in a weld with respect to epoxy. Without proper and consistent surface preparation you could find yourself in a lot of trouble.
If you do end up doing adhesive you should strongly consider testing a number of representative samples to failure to make sure they can handle the loads you expect.
University of Waterloo Formula Motorsports Alumni
http://www.uwfsae.ca/
If using alumunium and steel pipe, how to joint them ?