Lubricate track of straight line tracking tone arm

Try a product called Tri-flow. I believe it't an oil based lubricant with a silicon additive. I had a nasty squeak on my cd player's drawer which this stuff cleared up.

I would not use anything that would make dust stick to it. Just keep it clean by wiping it down with a lint free cloth.

Strongly agree with Rwwear. Straight line trackers and conventional pivoting arms both rely on finely machined finishes to reduce bearing friction, not lubricants. Anything that leaves a residue on your arm's track will lead to problems, which rules out lubricants by definition.

FWIW, WD-40 would be among the worst choices. Inspect any part you've "lubricated" with WD-40 after a time and you'll discover a gummy residue. That's the last thing you need on the track of a super-sensitive device like a tonearm. Oil- and silicone-based lubricants are also undesirable in this application. With respect to Timrhu, a tonearm is not a CDP drawer.

If the track feels rough to the touch or the arm's motion isn't smooth you may need to polish the track a little. The proper polishing material or cloth will depend on the material the track is made of, please don't go at it with sandpaper. ;-)

Otherwise, just keep it clean and keep it dry.

It occurs to me that graphite might be an appropriate non-gummy lubricant. I just Googled the Sony PS-X800 turntable and found it on vinyl engine where you can download the service manual. I just did and couldn't find anything about lubricating the bearing.