Honestly I buy the $10 cheap stainless ones from Amazon and they're kind of disposable. They last about 4 month of My use which I would say is high moderate then I order another one. The pin starts getting too tight is the only issue that makes them not optimal after that long.
Get a small bottle of light spray cooking oil, small squirt, leave for 5 minutes then wipe, turn over and repeat and then a small squirt on the centre pivot point.