I think I seen some orange one made in the USA also. Was wondering what’s the different between blue vs orange ?
I don't know about Blue Max vs. Made-in-USA orange. Will you please post a link to a Made-in-USA orange bandsaw tires? I searched, but could not find one.
Bearings for bandsaws are the sealed type, so external lubrication won't help. If they aren't smooth and perfect, replace them. I have seen where people (some on WoodworkingTalk) disassemble them, rebuild them, repack them with new grease, and reseal them, but most people (including me) buy replacement bearings. They don't cost much, not nearly enough to be worth that kind of effort.
I can't tell what kind of guide blocks you are using, but if they are plain metal, I would replace them with Cool Blocks. I have Cool Blocks in my old bandsaw, and they work well for me. They don't cost much compared with replacing your guides with Carter bearing guides, so I would try them first.
Another kind of replacement block (like Cool Blocks) is made from ceramic. They cost more than Cool Blocks, but they are very durable and are supposed to keep blade friction heat down. I like Cool Blocks because they cost less and won't damage the blade if they come into contact with the blade's cutting edge.
FYI, some people make their own blade guide blocks from hardwood.
You can replace the guide blocks with Carter bearing guides, but they are expensive. I have seen where sawdust can build up a hard crust on the guide bearings and degrade their functionality, so maintenance cleaning and occasional bearing replacement is needed once in a while. Bearing guides are popular and work well. I see them on a lot of new bandsaws.
Laguna makes aftermarket all-ceramic guides that have four blade touch points (instead of two), positioned above and below the thrust "bearing" for each top and bottom guide. They use the same guides on their bandsaws. I do not know if they make one for your Grizzly. They are expensive, too.
Summary of Recommendations:
* Replace your thrust bearings with new ones.
* Try Cool Blocks and/or ceramic guide blocks first, before considering Carter or Laguna replacement guides.
* After that, if you still want to buy replacement guides, compare the Carter and Laguna models.