Mysterious front hub dustcaps (cartridge hub question)

[robjh]

That explains why the axle is threaded, it's so an extractor/puller can be used to remove it, mind you a big hammer does the trick too.

That makes a bit more sense. I have @Yellow Saddle to thank for the big hammer trick, and am hoping that a bit more whacking will get it all back together satisfactorily.
I've done a bit of googling on cartridge bearing hubs, and this clip seems to support the whacking method!

 

[raleighnut]

That makes a bit more sense. I have @Yellow Saddle to thank for the big hammer trick, and am hoping that a bit more whacking will get it all back together satisfactorily.
I've done a bit of googling on cartridge bearing hubs, and this clip seems to support the whacking method!

Don't re-install bearings with a hammer unless you can find something the same diameter as the outer race, you'll 'indent' the tracks and knacker the new ones.

 

[robjh]

Don't re-install bearings with a hammer unless you can find something the same diameter as the outer race, you'll 'indent' the tracks and knacker the new ones.

Luckily I've been browsing a few more youtube clips since I posted that, and will take care!

 

[robjh]

Don't re-install bearings with a hammer unless you can find something the same diameter as the outer race, you'll 'indent' the tracks and knacker the new ones.

A post-script to this saga : I bought 2 new cartridge bearings, but then found fitting them accurately into the hub was a surprisingly difficult task, and no amount of improvising by me would get them to go in flat. So I've been to the LBS today and let the experts do it for £8.
End of story.

 

[Ian H]

Luckily I've been browsing a few more youtube clips since I posted that, and will take care!

With care you can use the old bearing as a drift.

 

[Globalti]

I wonder if they are old Hope hubs? That looks like the Hope style of doing things.

 

[robjh]

I wonder if they are old Hope hubs? That looks like the Hope style of doing things.

Maybe, I really can't tell. The hub is at least 10 years old but has no visible writing or other marks on it at all.

 

[Globalti]

To remove a bearing from a Hope hub you have to bash it out from the opposite side with a mallet, it will pop out with the axle in it just like yours then you have to pull the bearing off the axle and re-insert the axle to push the other bearing out. The bearing shields on an old Hope hub look exactly like yours too.

Old Hope hubs at least don't have anything engraved, they just have a green Hope label.

 

[Yellow Saddle]

To remove a bearing from a Hope hub you have to bash it out from the opposite side with a mallet, it will pop out with the axle in it just like yours then you have to pull the bearing off the axle and re-insert the axle to push the other bearing out. The bearing shields on an old Hope hub look exactly like yours too.

Old Hope hubs at least don't have anything engraved, they just have a green Hope label.

I don't think they're Hope. I've never come across a Hope hub with an inner-threaded axle.

Here's what I think the older ones looked like:

 

[Globalti]

That's old? Mine are even older; the brake rotor is attached by a screw-on collar, not bolted direct to the hub. Still giving great service.

 

[Yellow Saddle]

That's old? Mine are even older; the brake rotor is attached by a screw-on collar, not bolted direct to the hub. Still giving great service.

Is the axle threaded internally like the ones in the picture? I've never seen the ones you describe.

 

[Globalti]

No it's not. I can't link you to a pic of my hubs right now because the work server doesn't like Photobucket but I'll try to remember at home after tonight's hooligan ride.

 

[robjh]

This is the hub in question