[Andy Baker]

There are many companies which make linear slides.

One light duty slide is the "drawer slide".

Lowes, Home Depot, etc. sell these. General Devices and Accurride are industrial manufacturers.

There are many other industrial-type slide mechanisms. Igus has a low profile slide that looks really cool (I forget the part number). Rollon has some excellent slides that are relatively cheap. Thompson, IKO, NSK, THK, Hiwin (and others) all sell slides that range from medium to very heavy duty.

If you can choose one of these company's slides that are standard parts, you will be much better off with regard to price and lead time.

Andy B.