| Part Number | R188ZZ |
| Bearing type | BALL |
| Structure | Single Row |
| Load Direction | Radial |
| Seal type | Shields |
| Bore diameter(d) | 1/4″︱6.35mm |
| Outer diameter(D) | 1/2″︱12.7mm |
| Width(B) | 3/16″︱4.762mm |
| material | Chrome steel 52100(Gcr15) |
| ring material | Chrome steel 52100(Gcr15) |
| cage material | 300 Series Stainless Steel |
| ball material | Chrome steel 52100(Gcr15) |
| shields material | 300 Series Stainless Steel |
| Grade | ABEC-1(higher grade available) |
| Clearance | C0(other clearance available) |
| BALL SIZE(mm) | 1.588mm |
| BALL QTY | 10 |
| lubrication | grease(oil available) |
| Temperature Range | -30℃~130℃ |
| weight(g) | 1.6 |
| ISO9001:2015 | PASSED |
| REACH | PASSED |
| ROHS | PASSED |
| Dynamic Load Rating (Cr) | 920 N |
| Static Load Rating (Cor) | 355 N |
YoYo is an educational toy that can exercise our hand and foot coordination in our life,it is very popular these years because of its fun and simplicity.There are many kinds of yoyo with different material and shape,but yoyo bearing is always the most important parts for yoyo, it greatly determine how the quality of yoyo is. Zhangzhou Runstar Bearing Manufacturing Co.;Ltd is a professional manufacturer of yoyo bearings, we have more than ten year’s experience in designing and manufacturing yoyo bearing, the yoyo bearing sizes is with a bore size 6.35mm,a outer diameter 12.7mm and a width 4.762mm, the yoyo bearing size 6.35*12.7*4.762mm is the most pop size for yoyo worldly.Runstar supply the yoyo bearings sizes 6.35*12.7*4.762 SR188U to many famous yoyo manufacturers worldly.The yoyo bearing sizes 6.35*12.7*4.762 R188 from Runstar can be with all kinds of concave surface at request,such U groove,V groove or T groove.
BEARING INTERCHANGE
| RUNSTAR | NMB | NTN | ADR | GRW | EZO | TIMKEN |
| R188ZZ | RI-814ZZ | R188ZZ | R188ZZ | 6350BZZ | R188ZZ |
