terrybigwheel said:Why the heck would you want to open -sealed- bearings? Aren't they
sealed for a reason? Do they actually need maintinence, cleaning and
repacking often, or at all? 😕
Well, if your uni landed in salt or even fresh water, or you ended up in
a lot of sand, it might pay to remove the seals, wash out the bearing
with degreaser, blow out the bearing well, repack it (squirt in more
bearing grease), and replace the seals. If you rotate the bearing, and
it has a gritty feel, then it's possible that the above procedure will
help smooth out the bearing once again. If, of course, a ball is
broken, then repacking will not help and you need to replace the
bearing.
The seals on the bearings we use are more like impediments, not actual
watertight compartments. They kinda keep the dust out, and the grease
in. This keeps the cost of the bearings way down.
Another reason to repack a bearing set is to use a different grease for
extreme environmental conditions, such as extreme cold.
There may be exceptions to the above procedure, so if you have specific
questions, you are welcome to email me at 'LiveWire Unicycles'
([email hidden]).
The SKF website has many good pages on bearing seals if you are keen on
the topic.
--
U-Turn
Weep in the dojo... laugh on the battlefield.
'LiveWire Unicycles' (http://www.livewireunicycles.com)
'Strongest Coker Wheel in the World'
(http://www.unicyclist.com/gallery/albup39)
'29er Tire Study' (http://u-turn.unicyclist.com/29erTireStudy/)
'New York Unicycle Club' (http://www.newyorkunicycle.com)
-- Dave Stockton
------------------------------------------------------------------------
U-Turn's Profile: http://www.unicyclist.com/profile/691
View this thread: http://www.unicyclist.com/thread/47540