KR> tailwheel bearings

[John Martindale]

Folks



It is possible to grease some sealed bearings by gently prising up the seal lip 
with a syringe needle and injecting grease underneath.



John Martindale

29 Jane Circuit

Toormina NSW 2452

Australia



ph:61 2 6658 4767

m:0403 432179

email:john_martindale at bigpond.com

web site: http://john-martindale-kr2.zxq.net

KR> tailwheel bearings

[Mark Langford]

John Martindale wrote:

> It is possible to grease some sealed bearings by gently prising up the 
> seal lip with a syringe needle and injecting grease underneath.

I suppose somewhere there are sealed bearings somewhere that you could pry 
out, but not the ones we're talking about at http://www.n56ml.com/kgear.html 
.  As you may recall, the "sealed" bearings are the "good" ones...they have 
greased bearings and an elastomeric seal to keep water out.  Looking at 
http://www.n56ml.com/gear/10031311m.jpg (also enclosed), the one on the left 
is sealed, but the two on the right are only "shielded".  Getting this steel 
shield off to replace the bearings is a real effort requiring a press, and 
when you're done, the shield will likely be deformed.  Shielded is probably 
good enough for what we want, unless you run through a lot of water, IF the 
bearing was greased before the shields went on.

The takeaway from the photo is that greased and sealed bearings will likely 
last the life of the tire and then some, whereas shielded (or sealed) 
bearings won't last long with no grease on the bearings, which is what some 
companies will sell you if you let them.  See 
http://www.n56ml.com/gear/10031320m.jpg ...

Mark Langford
ML at N56ML.com
website at http://www.N56ML.com
 
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