I was going to say, many moons ago when VCRs were big and heavy beasts there
were lots of cabinets with pull out shelves with runners that were really
solid and durable, and these were flatpack furniture. looking back they used
a lot of nylon rollers in the main, in a metal pressed steel section. No
obvious problem when mechanical keys were pressed or top loading covers
shut either.
Brian

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The Sofa of Brian Gaff...

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"Chris Green" wrote in message
...
Theo wrote:
jkn wrote:
The runners have become pretty worn over the years and sliding the
shelf
in and out is now pretty 'graunchy'. I am thinking of replacing the
runners.
But in this application the forces are bit different to most drawer
runner
uses:

- most force is applied to the sliding shelf part when it is extended
- there is a larger degree of lateral 'tilt' force on the shelf than on
most drawer situations

Any thoughts about the best kind of runners to fit as a replacement
here?

You can get industrial slides - Accuride is a popular make:
https://uk.farnell.com/c/enclosures-...ssories/slides

There's all kinds of variations - removable/non removable, different
depths
of pull-out, self-closing, locking in the out position, etc.

They aren't necessarily cheap but they're designed for things like having
a
50kg server hang 1m out of a rack while someone tinkers with it, and then
push it back in. They definitely don't sag when that happens.

The standard kitchen roller bearing runners from such as Blum and
Hettich can now be found with 30kg and 50kg ratings, they're not all
that expensive either, typically £5 to £10 per pair.

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Chris Green
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