| Part Number |
638 |
| Bearing type |
BALL |
| Structure |
Single Row |
| Load Direction |
Radial |
| Seal type |
Open |
| Bore diameter(d) |
8mm |
| Outer diameter(D) |
28mm |
| Width(B) |
9 mm |
| 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) |
4.762 mm |
| BALL QTY |
7 |
| lubrication |
grease(oil available) |
| Temperature Range |
-30℃~130℃ |
| weight(g) |
28.10 |
| ISO9001:2015 |
PASSED |
| REACH |
PASSED |
| ROHS |
PASSED |
| Dynamic Load Rating (Cr) |
3879 N |
| Static Load Rating (Cor) |
1586 N |
