On Nov 30, 2:45*pm, Sam Giltner wrote:
Lubrication was definitely needed!
I recommend that all older Club Class gliders have these bearings
inspected at the next annual. *Thanks, 5U

What type of bearing was it? Schleicher uses 2 types of rod end
bearings, those with metal seals and those with felt seals. I know no
way to effectively lubricate the hard sealed bearings but do put a
token amount of lubricant on those I can reach. The felt sealed
bearings are both easy to lubricate and also very poorly sealed
against contamination. I lubricate all the ones I can reach but
there are several that cannot be reached without cutting the glider
open.

In my opinion they are best left alone. If holes have to be cut to
lubricate them I'd rather wait the 30 years until they develop play
then replace them.

Any expert opinions out there? JJ?

Andy