Sprocket Hub Bearing 89 FJ1200

[relick62au]

I am replacing my rear wheel bearings while wheel is off for a new tyre. They are definitely stuffed but I dont know about the sprocket hub bearing. It has a little play in it laterally but still feels quite smooth (but not perfect) I did get a replacement for it when I got the other 2 bearings from a bearing shop but the new one is your typical sealed type bearing.

What worries me is the existing bearing is of a different construction, it seems to have 2 sections moving independently, like there is 2 rows of rollers in there, and the sides are all metal. Can anyone tell me if the new standard sealed bearing will be ok.

The bike has 120000km on it, also it was possible to turn the bearing slowly in its housing, I suppose I can use "quick Metal" or similar when I install the new one.

The old bearing in the pic still has the insert in it.

Any advice would be appreciated!!

[ribbert]

I don't quite understand the different construction thing. The metal v rubber seals is irrelevant. If the bearing that came out was a tight fit, the new one should be too. If it's turning in the housing it sounds like you have the wrong bearing. Is there any scoring in the housing where it sits? Do you have a means of measuring the bearings accurately or you could cross reference them on the net.
The new bearing should be a press fit and should not require any bearing mount product.

To answer your question, the rubber seal bearing is fine assuming it's the right size.

Noel

[relick62au]

Thanks Noel, I must have been having a blond moment re the construction, yes it is of course the same. The original bearing was turning though and I actually pushed it out with my fingers. There was no ridge in the housing where it sat so I will put the new bearing in and see if it is any tighter.

Russell.

[ribbert]

Well that's cleared one problem up. If the old bearing just pushed out with your fingers, something is wrong. Is there any sign of damage where it sits in the housing? Such as you would get from it spinning.
It also possible that if you bought the new one from your sample, the old one, that it (the old one) was incorrect.

Either way something is not right. It should be a "press fit"  That does not mean press with your fingers but mechanically drawn in, pressed (with a press) or hammered in.
It should offer the sort of resistance I imagine you found with the wheel bearings, I hope!

Noel