OT hub bearings

Apologies for straying OT but the wheels on one of my child buggies
does /look/ like a bike wheel.

The rear wheels are mounted on a flanged stub axle (denoted by xxxx
below). The hub shell (/,\,_ and - below) is retained by a nut (N) and
thrust washer (W). There is a retaining washer (l) which sits inside
the end of the hub shell and behind which I can just see some (dry as a
bone) ball bearings (b). By smearing grease around the gap between the
axle and the retaining washer I was able to get a little into the
bearing race but i cannot see how to disassemble the bearing to repack
it. Does the panel think it is likely to be non-user serviceable (and
therefore potentially needing a new wheel or at least a new hub)? or is
there a trick I am missing. The buggy is an alurax in case anyone has
one and has doen this already

tia
james


ascii art fixed pithc font follows

|---\ /---|
\l bb\ /bb l/
lbbbb\_______________/bbbbl NNN
xxxxxxxx l bb bb lWNNN
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxx l bb bb lWNNN
lbbbb/---------------\bbbbl NNN
/l bb/ \bb l\
|---/ \---|

" wrote:

Apologies for straying OT but the wheels on one of my child buggies
does /look/ like a bike wheel.

The rear wheels are mounted on a flanged stub axle (denoted by xxxx
below). The hub shell (/,\,_ and - below) is retained by a nut (N) and
thrust washer (W). There is a retaining washer (l) which sits inside
the end of the hub shell and behind which I can just see some (dry as a
bone) ball bearings (b). By smearing grease around the gap between the
axle and the retaining washer I was able to get a little into the
bearing race but i cannot see how to disassemble the bearing to repack
it. Does the panel think it is likely to be non-user serviceable (and
therefore potentially needing a new wheel or at least a new hub)? or is
there a trick I am missing. The buggy is an alurax in case anyone has
one and has doen this already

tia
james

ascii art fixed pithc font follows

|---\ /---|
\l bb\ /bb l/
lbbbb\_______________/bbbbl NNN
xxxxxxxx l bb bb lWNNN
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxx l bb bb lWNNN
lbbbb/-------||------\bbbbl NNN
/l bb/ \bb l\
|---/ \---|

According to your excellent graphics you should be able to pull the
wheel of the axle after undoing the nut.

Alternatively if you could succeed in drilling a small hole in the
hubshell you could repack the bearings with a greasegun
--
---
Marten Gerritsen

INFOapestaartjeM-GINEERINGpuntNL
www.m-gineering.nl

wrote in message
oups.com...
Apologies for straying OT but the wheels on one of my child buggies
does /look/ like a bike wheel.

The rear wheels are mounted on a flanged stub axle (denoted by xxxx
below). The hub shell (/,\,_ and - below) is retained by a nut (N) and
thrust washer (W). There is a retaining washer (l) which sits inside
the end of the hub shell and behind which I can just see some (dry as a
bone) ball bearings (b). By smearing grease around the gap between the
axle and the retaining washer I was able to get a little into the
bearing race but i cannot see how to disassemble the bearing to repack
it. Does the panel think it is likely to be non-user serviceable (and
therefore potentially needing a new wheel or at least a new hub)? or is
there a trick I am missing. The buggy is an alurax in case anyone has
one and has doen this already

tia
james


Why not pour some car engine oil or thick gearbox oil through the gap when
the wheel is on its side.

Leave it overnight on some newspaper to let the excess leak out.

On 1 Jun 2005 04:45:43 -0700, "
wrote:



|---\ /---|
\l bb\ /bb l/
lbbbb\_______________/bbbbl NNN
xxxxxxxx l bb bb lWNNN
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxx l bb bb lWNNN
lbbbb/---------------\bbbbl NNN
/l bb/ \bb l\
|---/ \---|

And for ASCII fans everywhe

http://www.asciimation.co.nz/

Guy
--
May contain traces of irony. Contents liable to settle after posting.
http://www.chapmancentral.co.uk

88% of helmet statistics are made up, 65% of them at CHS, Puget Sound

m-gineering wrote:
" wrote:
snip how can I grease the bearings

ascii art fixed pitch font follows

|---\ /---|
\l bb\ /bb l/
lbbbb\ /bbbbl NNN
xxxxxxxx l bb | | bb lWNNN
xxxxxxxx luuuu-----------------uuuu1
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxx luuuu-----------------uuuu1
xxxxxxxx l bb | | bb lWNNN
lbbbb/ \bbbbl NNN
/l bb/ \bb l\
|---/ \---|

According to your excellent graphics you should be able to pull the
wheel of the axle after undoing the nut.

Alternatively if you could succeed in drilling a small hole in the
hubshell you could repack the bearings with a greasegun


not quite excellent enough and now edited to show why removing the axle
doesn't help. uuuu is part of the bearing race seems to be tha part
that actually sits against the axle and is fixed wrt the axle. I think
the trick would be to somehow pop out the retaining washer 'l'. I will
try the engine oil or drilled grease port ideas out

thanks for the suggestions
james

What exactly is the problem?

These sorts of wheels very often don't have any grease in the bearings
- after all they don't go very fast and so don't generate much heat.
The purpose of greasing bearings is not to make them slide - they're
supposed to roll not slip - it's to conduct away any excess heat. You
say you can see the bearings are dry, which would suggest there's a
gap, so if you do grease them, any grit that gets in through the gap
will stick.

Can you go to a shop and have a look to see if a brand new one has
grease in the races?