Which bearing retaining compound (Loctite) ??

[fidowanttobe]

Gentlemen,
Has anyone had success with using a retaining compound on bearings to keep the race from rotating in the housing? Rear auto wheel bearing is loose in the hole after I had to slide hammer the old one out, new bearing is correct in size and number, old bearing is correct number but is .007 larger than specs say it should be !!! So, no way of finding a bearing that will friction fit so I need to Loctite it in with a "retaining compound". Only trouble is there are dozens of them. Any suggestions? Thanks.

 

[Industrial Toys]

I think Loctite makes great products. Recently, I had to call their tech line and get advice on a particular application. Got the right product number and ordered it from a local jobber. If in doubt, ask.

 

[ericm979]

I've used the gap fillers on parts in carbon fiber bicycle frames so I can't help with a specific recommendation for this application.

The specs for each compound are published and relatively easy to understand. I.e. the size of the gap it fills, the strength of the bond, etc.

Get it really clean (I use acetone as a final cleaner) and use the primer.

 

[Industrial Toys]

Also what medium it will be exposed to, what may happen if it gets loose into the system, how hard it gets, how it cures and stuff like operating temperatures.

 

[ruffdog]

To retain a bearing race, use one of the green locktites. One of them will fill voids up to .015"

 

[oldnslo]

680 is a retaining compound meant for cylindrical parts.

 

[i7win7]

the race is the metal cage that keeps the bearing separated right? If so it needs to rotate. If bearing is loose in the casting, what about JB Weld?

 

[ruffdog]

the race is the metal cage that keeps the bearing separated right? If so it needs to rotate. If bearing is loose in the casting, what about JB Weld?

No, the cage is not the race. Most bearings have an inner and outer race.

 

[ericm979]

The races are the inner and outer tracks that the balls roll in. The cage is the cage, or rolling element separator if you're being formal.

The right loctite compound will work much better than JB weld. It's tough to get a good layer of JB weld in a 7 thou gap. I you get JB weld in the bearing, it's toast, while the Loctite just won't set up so it's safe. With Loctite you can heat the part to get it loose again (unless it's in a carbon fiber bike frame, then you use a compound that can be disassembled without heat). Heat works with JB weld too but the temps required are higher, potentially damaging the parts.

 

[otlski]

As mentioned above, a gap-filling green is the right stuff. Be certain in this particular application to properly degrease and use primer. The gap filling stuff wants to be clean and primered to cure correctly.