Product name : 638 ZZ/RS/OPEN
Product No. : Ball Bearing 638 8x28x9mm
Details:
638 bearing has open, seals and shield types, and v-groove inner ring is available.
These miniature bearings have greatly wide range of applied fields including Skateboard, RC Car, Dental, Fishing Reel,Yoyo, Instrument, Electric Motor, Medical and so on.
Demesions: | |
Bearing No. | 638, 638-ZZ, 638-2RS, 638Z, 638RS, 638 ZZ, 638 RS |
Bore diameter (d) | 8 mm |
Outer diameter (D) | 28 mm |
Width (B) | 9 mm |
Basic Load Rating(N) | |
Dynamic(Cr) | 3879 |
Static(Cor) | 1586 |
Max. Speed(RPM) | |
Grease | 28000 |
Oil | 34000 |
Weight(g) | |
Approx. | 28.1 |
Grade | P0, P6, P5 |
Radial Clearance | C0, C2, C3 |
Technical Data:
Part number rule
Dimension Tolerance
Radial clearance
Vibration
Grease