FAQ: What Size Bearings For Roller Skates?

How do I know what size bearings for roller skates?

There are 3 very easy ways to check the size bearings you have.

  1. Look at the stamping on the shield of your existing skate bearing. Most will be stamped with 608.
  2. You can also tell by the size of the wheel nut. A 9/32″ nut will indicate a 7mm bearing.
  3. Take a number 2 pencil using the eraser side of the pencil.

What size skate bearings do I need?

Regardless of wheel size, all skateboard bearings are the same size and will fit any skateboard wheel that Warehouse Skateboards sells. The universal measurements for bearings are 8mm (core), 22mm (outer diameter), and 7mm (width). Skateboard bearings are sold in sets of eight, as each wheel requires two bearings.

Which bearings are used in roller skates?

Most bearings used for skates are made to fit 8mm axles. These are called 608 bearings because they’re the standard size, whereas 627 bearings are 7mm, and they’re not commonly seen. You will find them more often on artistic skates or special speed skates.

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Are all roller skate bearings the same?

Are bearings the same for all types of skating? The main skate bearing size is called a 608 bearing. This is the same size bearing for roller skates, inline skates, roller derby skates, skateboards, and scooters.

How do I know if my roller skate bearings are bad?

If you hold them between your fingers, give them a spin and they make grinding noises or don’t even spin to the count of 1, then they are dirty.

Is ABEC 7 or 9 better?

The higher the ABEC rating, the tighter the tolerances are, making the bearing a more precision part. In an application like this, an ABEC – 7 or 9 bearing rating may be appropriate. However, a skateboard with 54mm wheels turning 20,000 RPM will be traveling about 127 MPH!

How do you determine bearing size?

The bearing size is selected based on the basic static load rating C (product tables). For an equivalent static bearing load P, the selected bearing must have a C value ≥ the value of the requisite basic static load rating C0req (table 1).

Do bearing spacers slow you down?

Bearing spacers are little tubes that keep the inner race of your bearings correctly spaced and aligned on the axle. This will slow your bearings down and wear them out super fast! Skaters without bearing spacers might find it easier to just run their axle nuts a bit loose to keep the wheels spinning freely.

How often should you clean your roller skate bearings?

Remember, bearings only need to be cleaned about once every two to three months depending on the environment you are skating in. If you primarily skate inside several times a month but the surface is not cleaned often, you might have to shine up your bearings once a month.

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Are ABEC 9 bearings good?

You get a reasonable amount of speed, and at a reasonable cost. ABEC 7 bearings would be very fast and smooth, but very expensive. ABEC 9 and higher bearings would be ridiculous to use in a skateboard unless you are doing downhill luge-style skating or something else where your goal is to go insanely fast.

How do I find the right bearing?

Measuring your bearing: Most bearings are measured in three ways, the inside diameter or (ID), the outside diameter or (OD) and the width or (W). It is important to note that our bearing measurements are all done in the following order: Inside diameter (ID) x Outside diameter (OD) x Width (W).

How long do skate bearings last?

On average rollerblade wheels and bearings last between 12 and 18 months. Material and quality is the biggest factor in determining how long wheels and bearings will last. High-grade equipment and good skate care can increase lifespan by several years or even can last decades to some extent.

Are SG7 bearings good?

The SG7 skate bearings are perfect for any level of skater from beginner to advanced intermediate and will make your skates roll like a new pair. The higher the SG number the higher the level of precision, tolerance and speed. GREAT PERFORMANCE AND DURABILITY from the 7-ball bearing design.

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