Size C

NSK Gold and Platinum bearings are different from general-purpose bearings, including their internal structure, and are exclusively designed for this purpose, boasting a lightness of rotation that is far superior to that of general-purpose bearings.

NSK bearings are used not only in yo-yos, but also in hand spinners (fidget spinners), which have recently become very popular.

K- size

This is a Japanese-made K-size thin bearing manufactured by NSK Micro.

Originally, this bearing was used by some players as a modification part for raiders, etc., and this size bearing is now used as a standard bearing by Kruik, etc.

It can be used for modification of metal spacer raiders.

By tightening the spacer after installation, you can easily make a raider that is easy to loop.

If you use Raider EX, it is recommended because the axle is short and can be tightened with almost no risk.

Although this tightening process is not as severe as with nylon spacers, please note that incorrect force can cause yo-yo breakage. Since fine adjustment is necessary, please try various settings according to your personal preferences.

Size A

NSK Micro Precision bearings are standard on all 66percent brand yo-yos.

This bearing is recommended not only for 66percent yo-yos but also for off string models.

The lineup includes A-size bearings, D-size bearings, which have been increasingly used in recent years in metal spin gadgets, and K-size bearings, which are becoming the standard for looping models.

Size 688

This is a replacement bearing for the 688 size used in the FS01, 02, 03, 04, and 16. The 688 size on the market contains grease and oil and is not suitable for spinners. Therefore, this bearing is the most suitable for spin gear spinners, which are made by special order with dedicated lines.

NSK Micro Precision's production ensures high-precision and smooth rotation.

By replacing the bearing in your hand spinner, you can experience smoother and lighter rotation.

*We do not guarantee a longer spinning time. Please understand this beforehand.

FS01, 02, 03, and 16 are only lightly fitted, so it is easy to replace the bearings, but 04 has a structure that requires a special tool or device to replace the bearings.