Each skateboard wheel is mounted on its axle via two bearings. With few exceptions, the bearings are the industrial standard "608" size, with a bore of 8 mm (or 10mm depending on the axle), an outer diameter of 22 mm, and a width of 7 mm. These are usually made of steel, though silicon nitride, a high-tech ceramic, is sometimes used. Many skateboard bearings are graded according to the ABEC scale. The scale starts with ABEC1 as the lowest, followed by 3, 5, 7, and 9. It is a common misconception that the higher ABECs are better for skateboarding, as the ABEC rating only measures tolerances, which do not necessarily apply to skateboards. Bearing performance is determined by how well maintained the bearings are. Maintenance on bearings includes periodically cleaning and lubricating them [1]. Bearings that are kept unmaintained have their performance greatly lowered and will soon need to be replaced. Bearing cleaning kits are commonly available on the market. The ABEC rating does not determine the speed or durability of a skateboard bearing. In particular, the ABEC rating says nothing about how well a bearing handles axial (side-to-side) loads, which are severe in most skateboard applications. Many companies do not show the ABEC rating, such as Bones Bearings, which makes bearings specifically for skateboarding, often marketed as "Skate Rated". Each bearing usually contains 7 steel or ceramic bearing balls, although other configurations are used as well.

From cheap skateboards to high end, custom complete skateboard decks, we have boards for riders of every skill level and tax bracket - we get it, we put skateboarding before everything else first. If you can’t always afford a new board, but go through decks like toilet paper, consider a CCS Skateboard - they cost less, but are manufactured in the same factories as other brands we carry. CCS Skateboards are held to the same standards as every skateboard we sell, but we can sell them for less.
EXPERIENCED SKATER! This board is amazing for the price! (notice i said FOR THE PRICE) At the time of this review, the board was $44.40 and for that price the board i got was phenomenal. It is a 7-ply deck with aluminum trucks (havent figured out the bearings but they definitely feel like the abec 5 they claim to be). The trucks arent the best quality out there and the board can be a little thinner (maybe 5-ply) but the overall board is amazing. There are only two complaints. The hole in the wheels is a tiny TINY TIIINYYY bit off center, but nothing that cant be fixed with a new set. I can see what another review said by it not coming assembled, as a couple of the bolts on the wheels are a little loose, but the board does come assembled.
It’s not just standard deck sizes that are available for creating or replacing your board. You can just as easily get a great longboard deck to work on in your basement or garage. One of the best and best reviewed options out there is the Loaded Boards Poke Longboard Skateboard Deck. This standard-design longboard deck has it all to help you make the ideal board. 
This board is an excellent option for beginners because of its simplicity and durability. The lightly concave design allows for simple turns but doesn’t require the rider to be an excellent navigator. You can start off riding this deck down the street and use it as you learn ollies, kickflips and how to drop in to a half pipe. It will withstand it all and look good doing it.