Bearing spacers why we need them ???

Bearing spacers why we need them ???

Bearing spacers why do we need them ???

Whether your a pro or a beginer skater your skate gear needs to function correctly fact is if your skate gear is not correct it is more difficult to skate.

Bearing spacers are extremely important to take side load off your bearings and at the same time allowing you to quickly and properly tighten the wheel nuts to a correct firm tension, and still maintain 100% a free-spinning roll with no axle chatter.

The exact size of spacers is the most important within .25 of a millimetre to get the perfect roll, If the spacer is too small it would be the same effect as no spacers at all, too big would push the bearing out of the inner seat causing the wheel to move the gap distance of the bearing out of seat making a clicking noise.

To round up the

  1. The bearing should be snug into the wheel seat
  2. Spacer size should be exactly the gap distance of the two bearings centres
  3. You should be able to tighten wheel nuts firm with 100% free rolling bearings with no sloppy movement in the wheel.
  4. Remember the higher the ABEC the lower the tolerance which means the bearing is more snug into its own casing yet has very little slop in its own casing, but not misunderstanding what ABEC is it is a rating for machining accuracy, whether you run ABEC 1 or 9 will not change how fast you will roll the only advantage of a higher ABEC, in theory, is the bearing should roll smoother, and without too much confusion there are bearing manufacturers these days who prefer not to use the ABEC rating but prefer to use skate rated bearings as more attention to sideload rather than trying to go at impossible speeds.
  5. Side load generated by G forces on the sides of the bearings it what causes more bearing failure than any other situation, this gets back to the reason for bearing spacers as spacers help aline the bearing to reduce side load pressure.

Bearing spacers are extremely important to take side load off your bearings

We do see many customers who have been misled thinking that their wheels should spin for an exact amount of minutes and seconds and to achieve this it would be ok to have loose wheel nuts no spacers.

This, in fact, will cause premature wear, bearing chatter, or bearing lock possible damage to the axles, plus your wheels could vibrate off possibly causing injury to the user,

All bearings fit into a recess and the gap between the two recess points this is your exact spacer width thus allowing you to tighten the retaining nut nice and firm putting absolutely no pressure on the side of the bearings allowing the bearing 100% free spinning.

One thing to remember new bearings that are pre-lubricated will take a few days to run freely,  the higher the abec the higher tolerances as in smoothness and firmness of the bearing, plus the higher the abec does not mean will spin faster, in fact, abec one or abec eleven can all do the same revolutions per minute but the higher abec due to there higher quality will run cooler and smoother as the machining tolerances are more exact.

For any more feedback contact 

Ed @  over 45 years of Mechanical engineering experience.




ampro skates



ampro skates Malaga Western Australia

Thank you for browsing the ampro skates website, what you are viewing is the first and only complete skate and scooter store established in Western Australia in November 2015, a non franchised family business with owners of 40 years of skating knowledge and of a fully qualified mechanical technician background, catering from amateur to pro skaters.

As ampro skates owners has been involved with retail for over 46 years we know what the consumer is looking for affordable quality products, even though we have access to many brands, such as

Claudius CV, Envy, Fasen, Ethic, Flavor, Globber, Bont, Micro, Riedell, 187, 888, S One, Trinity, Samurai, Protec, Fox, Sacrifice, Syndicate, Venice & District. every single product and part is carefully examined to be up to the standards we require before ampro skates accept and promotes those products.

This is why ampro skates do not carry mass merchant disposable toys found in supermarkets or variety stores. As being retail for so many years we at ampro skates knows how disappointing it is to purchase something than to return later to see that same item on sale, this is why no sales ever at ampro skates, just every day lowest possible prices,24/7 365 days per year.

Our approach at ampro skates Malaga is to combine our 40+ years of skating and technical mechanical experience and create a one-stop-shop that caters to both the amateur & professional skater, with our main focus on quality affordable family products, which is a lot more difficult task than one could imagine, trying to find quality products that is affordable yet not a throwaway disposable consumable.

ampro skates carries large stocks of kick scooters suitable from toddler age, right through to the pro rider.  Brands of complete scooters and parts we stock are Claudius CV, Envy, Fasen, Ethic, Flavor, Globber, Bont, Riedell, 187, 888, S One, Trinity, Samurai, Protec, Fox, Sacrifice, Syndicate, Venice & District. also stock a comprehensive stock of spare and replacement parts, headsets, hand grips, bearings, wheels, bars, decks, helmets & bolts.

As ampro skates have been involved in the WA Roller Derby community, and pro scooter riders, ampro skates stock the appropriate quad skates and protective gear.  We carry Powerslide, Bont, 187, Triple 8 & offer a wide variety in stoppers, plates, spare parts, wheels, bearings, Powerslide protective gear and apparel with lots of skates and inline blades suitable for children, including those which can grow with your child’s feet. massive range of coloured laces, socks and novelties.

Just recently at ampro skates Malaga we have improved the range of skateboard stocks, including novelty light up penny boards, longboards & double kick plus refined our choice of popular brands,

Sacrifice, Envy, Fasen, Ethic, Flavor, Globber, Bont, Riedell, 187, 888, S One, Trinity, Samurai, Protec, Fox, Sacrifice, Syndicate, Venice & District.

We also offer spare parts, blank boards, trucks.

ampro skates with extensive technical expertise, we can undertake both major and minor repairs from bearing, headset and bolt replacement, precision grip tape application, cleaning, respraying, cut downs, redrills.

Staff, at ampro skates, pride ourselves on our ability for custom builds.  If you have a dream, we can build it for you.  Come chat to our techs today and get your dream under your feet today.

To quote a well-known verse (I’ve paid my dues time after time, I’ve done my sentence But committed no crime and bad mistakes I’ve made a few, I’ve had my share of sand kicked in my face, but I came through), (Queen 1977)

What we are saying is there is no better experience than long term knowledge.

ampro skates Malaga Western Australia

Bearing spacers are extremely important to take side load off your bearings