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Article #65: Inline Skate Bearings and the ABEC Scale

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If you think you need new bearings for periodically, you may want to stick with
your inline skates, it's best to check this type of bearing and just replace
your bearings for wear using the tests them when they need to be changed.
provided in this article. Your bearings In addition, if you have shielded
are at the core of your wheels and reduce bearings with pop-out caps, like Powell
friction so you can skate smoothly and Swiss or Black Hole brands, and like them
efficiently. Hence, they need to be for their ease of maintenance, it's
maintained properly from season to probably best to go with this kind of
season. bearing again.
Checking for wear Buying new bearings
The following are indications of major, My K2 skates have 8-mm, TwinCam, ABEC-1,
bearing wear from a no-load, double-shielded bearings with the
finger-flick, spin test: following inscribed on the casings:
1. One or more of your wheels stick(s) - TwinCam
periodically - ABEC-1
2. One or more of your wheels (is) are - 608 ZZ
seized Normally, the manufacturer or brand
3. One or more or your wheels require(s) doesn't make a lot of difference within
a lot of force to spin the three categories of shielded,
4. One or more of your wheels spin(s) serviceable bearings, shielded,
freely for only a second or two serviceable bearings with pop-up caps,
In addition, the following are signs of and sealed, non-serviceable bearings. A
major, bearing wear from a spin test with bearing size of 8 mm and the 608
the skater as the load: designation are fine for recreational,
1. While skating you hear a loud, inline skaters. The ABEC rating is
grinding noise from your bearings another story!
2. It requires a lot of effort to pick up ABEC-1, 3, and 5 are the most common
and maintain speed bearings that come with inline skates, as
3. Your bearings are hot to the touch well as the newer ABEC-7s, which are
after a roll gaining in popularity. Whether a skater
You may also want to replace your inline can go faster with ABEC-5 bearings versus
skate bearings if you decide to switch to ABEC-1 bearings has never been proven,
a different type of bearing. You may want scientifically or otherwise.
to change from shielded bearings to Furthermore, the higher precision may not
sealed or racing bearings. make a significant difference for the
Learning the ABEC Scale recreational skater who travels in the 10
Bearings are rated on the Annular Bearing to 20 mph range. The average skater
Engineering Council (ABEC) scale. Ratings doesn't require a higher-rated bearing
are numbered 1, 3, 5, 7, and 9 on the because the difference in performance is
ABEC scale. The higher the number is, the so minimal that it would only become
greater the manufactured precision of the apparent at speeds an inline skater never
bearing. attains.
However, there are no required materials In addition, the higher precision
to meet the ABEC specifications. The eventually deteriorates down to ABEC-3 or
bearings only have to be made to a 1 due to dust, dirt, and regular wear and
certain precision. That's all! tear. To increase your skating speed,
Servicing your bearings you'd be better off to improve your
Inline skate bearings usually come in technique and learn how to cut down on
sets of four to eight. Before you head wind resistance. These are proven ways to
out to your favorite sporting goods make you a faster and more efficient
store, write down the information that's skater.
shown on the outer shields of your So, get the most affordable ABEC-1 or
bearings. Don't forget to flip the ABEC-3 inline skate bearings you can
bearing over and include the text that's find, clean and lube them with oil or
inscribed on the other side. grease on an annual basis, and you'll be
If you're happy with the original just fine.
bearings that came with your skates or Summing Up
the last set you installed, by all means When it comes time to purchase new
buy the same bearings. If you have bearings for your inline skates, make
serviceable bearings like TwinCams or sure you write down the information
YAKs and you don't mind doing your own that's inscribed on the outer casing of
cleaning and lubrication than you may your bearings before you head to your
want to stick with the double-shielded local, skating shop. In addition, beware
type, especially if they are the Original that an ABEC rating is nothing more than
Equipment Manufacturer (OEM) that your a bearing precision. If you find a set of
skate manufacturer recommends. bearings at the right price that are
On the other hand, if you have suited for your skates, but they have a
non-serviceable or sealed bearings and lower ABEC rating, go for it anyway!
are squeamish about doing your own You'll probably never notice the
cleaning and lubrication, even difference.






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