One big advantage of a nylon cage over a steel cage is that nylon cages are easy to remove - so you can completely strip the bearing for a full clean. Steel cages are basically impossible to remove, so you wont be able to dissaemble the bearing and you'll be stuck with a half-arsed cleaning job.

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It's important to realise that by doing this you will be increasing the frequency with which you need to clean and regrease your bearings. When choosing skate bearing lubricant, you need to choose between:

What are bearings on a skateboardfor beginners

The most noticeable result is that you will end up with less money in your wallet and the people that sold you the bearings will be eating out at restaurants at your expense for a few days. Under the following conditions, you may notice an improved performance.

It is not possible to have both high speed and minimal maintenance. We suggest you try both light and heavy grease and see which you prefer. See our skateboard bearing cleaning guide (with video!) for different lubricant recommendations.

Keeping your bearings clean is very important to keep them fast. It's much easier to remove a rubber shield than a metal shield - so most good skate bearings will have rubber shields.

The World Speed Record on a skateboard is 91mph (on 80mm+ wheels). You can see that even the lowest ABEC standard is capable of at least twice that! So next time you are feeling like you are being held back by your ABEC 1 bearings pushing around town - think again.

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"Z" is a designation which means a steel shield covering the side of the bearing (for most brands). "ZZ" simply means that the bearing has a shield on both sides.

Here at Vandem, we are lazy, we can't be bothered to clean our bearings that often, and we don't really think that super-spinning-fast bearings make that much of a difference to our skateboards. So our recommendation is to just bung some thicker grease in there from the outset and put up with a little bit of extra drag whilst not cleaning bearings very often. But it's up to you!

Skateboardbearing size chart

The reason you see the ABEC ratings at all in skate shops is because skate companies are lazy and want to sell you stuff.

The ABEC rating system covers a few things, but to give you an idea we will just examine one of them - the eccentricity (out of roundness) of the track in the inner ring. For an ABEC 1 (lowest grade) bearing, the maximum eccentricity allowable is 0.0075 mm (0.000295"). This is quite precise - more than precise enough for longboards, cruiser boards and skateboards. The figures for the other ABEC grades are:

To be honest, you really do not need to waste your money on anything higher than ABEC 1 for skateboarding applications. The ABEC rating only tells us how close the bearings dimensional tolerances are (that is, how close the bearing is to the stated size). There are many other factors relating to the quality of a bearing (shielding, quality of materials, lubrication etc), and most of these factors will have much more of an impact on how fast your skateboard goes than the ABEC Grade of the bearing.

A shielded cable or screened cable is an electrical cable that has a common conductive layer around its conductors for electromagnetic shielding.

What are bearings on a skateboardreddit

To put it simply, very little difference. They are both standards which are applied to the chemical composition of Chrome Steel (also known as Chromium Steel and High Carbon Chrome Steel). SUJ2 is a Japanese standard, whilst SAE52100 is a U.S. standard.

If you are a fan of jumping down stairs and you destroy bearings really often, check out the Bones Big Balls or Bones Super Swiss Six Ball bearings. These have six balls as opoosed to seven, making them a lot stronger and therefore longer lasting.

Most branded skate bearings have nylon cages, whilst cheaper bearings will have steel cages. Nylon cages are usually used in high speed bearing applications, but for skateboard bearings its a less clear cut advantage.

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Skateboardbearing size 608

There are two kinds of metal shields - those held on with circlips, and those that are permanently crimped in place. The former is possible to remove with a pair of circlip pliers, and the latter cannot be removed.

You could switch to a ligher skate-specific grease like Bones Speed Cream or Sabre Bearing Lube. Lubricant is responsible for about 30% of the overall drag of a bearing - using a lighter lube will reduce that a fair bit.

"608" refers to the bearing size. The metric sizing system for bearings is a bit like thread size - each bearing size has a code, eg "6001" and "5307".

HT Ultra Grease is an extreme temperature grease for rolling and plain bearings operating in high temperature applications up to 600°c.

"RS" simply stands for "Rubber shield." It specifically denotes a "Non Contact" rubber shield, which only contact the outer race - not the inner. Sometimes you will see "2RS" on a bearing code - this simply means that both sides of the bearing have rubber shields.

Areallskateboard bearingsthe same size

You are much better off with some decent skate bearings from a well-recognised skate brand that don't have an ABEC rating.

The "Cage" is the thing that holds the balls in between the bearing races. It acts to keep the bearings evenly spaced and therefore holds the whole bearing together.

Skate companies lie about technical stuff in their marketing all the time. Adhearance to the ABEC bearing standard is not easy to prove or disprove, and it's so deeply ingrained in skate culture that most skaters refuse to believe that it's really not applicable to them. So the legend lives on!

ABEC is an acronym for Annular Bearing Engineering Committee of the AFBMA (Anti-Friction Bearing Manufacturers Association Inc). The ABEC scale of bearings is a set of standards for the manufacturing tolerances of bearings. All quality manufacturers around the world manufacture to at least ABEC 1 standard. If you were to ask your local bearing supplier for a 608ZZ, you would almost certainly receive an ABEC 1 bearing.

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If a bearing is to be used in high precision, high speed machinery, these tiny variations can make a difference to lifespan, vibration, noise and performance. However, skateboards and longboards are very, very far from the clean, shock-free environment of a machine shop. The moment you use a bearing in your board, after 5 - 10 minutes of use the tracks won't just be eccentric, they will become irregular (albeit minutely) enough to be practically indistinguishable from one another. Your high priced ABEC 9 bearing might as well be the cheapest ABEC 1 bearing out there.

Again, you will not get any more life out of either high precision or low precision bearings. Aggressive skaters will find that they go through bearings more quickly, so the best advice is "Get the cheapest, as long as they are a decent bearing".

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How to cleanskateboard bearings

In our opinion, the best skate bearings only have a single shield, so you can give them a quick clean without removing anything.

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We feel that we must stress here that the purpose of higher precision bearings IS NOT TO GO FASTER, but (amongst other things) to ALLOW HIGH SPEED MACHINERY TO OPERATE AT FASTER SPEEDS THAN STANDARD BEARINGS WILL ALLOW.

Normally, the shield itself will be branded as "608 Z" even though there is a shield on both sides of the bearing. This is for practicality in manufacturing. It is much more economical to produce all of the shields stamped as "608 Z" than it would be to manufacture the exact same component with two different stampings on them.

If the bearings are labelled as ABEC 7 then in most countries the manufacturers of the bearings are compelled by law to provide ABEC 7 bearings. However, we don't know many people how are capable of measuring the difference between and ABEC1 and an ABEC9 bearing! So this is really just about who you want to believe.

Bestskateboard bearings

Both of the above standards are exactly the same for 4 of the 7 major elements used in Chrome Steel. Of the remaining 3 elements the specifications overlap, meaning that an SUJ2 bearing steel is also in many cases conforming to SAE52100 and vice versa. That is not to say that all batches of one will also conform to the other, but the differences are minimal anyway. Don't let anyone tell you that one is better than the other.

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The ABEC rating is designed to measure loads of stuff that doesn't matter for skateboarding, and doesn't cover loads of things that do matter.

Nylon cages may have some slight advantages over steel cages in that it could possibly help to dampen the shock loads associated with skating, and it may assist in holding the lubricant in. Honestly though, we'd be suprised if you can tell the difference!

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Higher precision bearings are designed to allow high precision machinery to operate smoother and sometimes at higher speeds than a standard bearing would allow. Keeping this in mind, a standard ABEC 1, 608ZZ is rated with a limiting speed of 32,000 RPM with grease lubrication and 38,000 RPM with oil lubrication. The actual speed that the bearing will attain without failure also depends on the loads applied and other running conditions but there is really no need to go into that too heavily here.

What are bearings on a skateboardwheels

"RU" is a "Full-Contact" rubber shield, or "Labyrinth" shield (as opposed to an "RS" or "Non-Contact" shield). Here, the shield contacts the inner and the outer bearing races. Similar to "2RS", "2RU" means that a bearing has two shields, one on each side.

ABEC standards cover the tolerances of all of the measurable dimensions of the bearing (except the radii). ABEC standards do not cover Running Noise, Starting Torque, Lubricants or Clearance.

Yes - the other commonly used standard is the ISO (International Standards Organisation) standard. There are slight differences in the standards applied, but basically ISO Grade P0 is approximately equal to ABEC 1, ISO P6 approximates ABEC 3, ISO P5 approximates ABEC 5, ISO P4 approximates ABEC 7 and ISO P2 approximates ABEC 9. Please see our List of ABEC Grades for the exact values of these precision grades.

We are not psychologists but we can think of 3 reasons immediately. Firstly, if you had just paid several hundred pounds for a set of bearings, you too would "believe" that they were better than what you had bought previously for around £15-£20. Secondly, it's well known that if you really believe that something will make you faster, it probably will (it's all in the mind). Thirdly, how do you seriously compare the speed at which your new ABEC 9 bearings allow you to travel against the speed that your old ABEC 1 bearings allowed you to travel several months ago when they were also new? Are you going to get out the light traps and speed sensors and do timed runs indoors on glass-smooth surfaces? More likely you would be comparing against the speed at which the old ABEC 1 bearings allowed you to travel after they had worn considerably. Try this in reverse. Take out the old ABEC 9 bearings after several months and replace them with new ABEC 1 bearings and you will get a similar increase in speed.

There is no GRADE lower than ABEC 1, but that doesn't mean that a manufacturer has to meet ABEC standards. Loads of cheap bearings out there don't even meet ABEC 1, and manufacturers are under no obligation to meet this standard. Most skate bearings are just bought from a catalogue with a brand name (or whatever name the purchaser requests) stamped or molded into the bearing shield. Some well known skate manufacturers could be buying their bearings from the cheapest, least quality conscious bearing manufacturer, and you would never know. Stick to reputable skate bearing brands that don't make ridiculous marketing claims, and you won't go wrong.