Wholesale mini bearing deep groove ball bearing 688
is a Precision Radial
Miniature Ball Bearing
with Both Sides Metal Shielded and pre-lubricated with Grease or Oil.
688ZZ Metric Miniature
Deep Groove Ball Bearing is a 8mm ball bearing that is found in many applications. 688ZZ Metric Miniature Ball Bearing has two non-contact metal shields one on each side of the ball bearing. If your application requires a 688ZZ ball bearing with only one shield you can get this ball bearing and take one of the shields off. This 16mm ball bearing 688ZZ is high quality and can take electric motor demands if needed.
Bearing Type | Ball |
For Load Direction | Radial |
Construction | Single Row |
Seal Type | Shielded |
Part Number | 688ZZ |
For Shaft Diameter | 8mm |
Bore Dia (d) | 8mm |
Bore Dia Tolerance | -0.008mm to 0 |
For Housing ID | 16mm |
Outer Dia (D) | 16mm |
Outer Dia Tolerance | -0.008mm to 0 |
Width (B) | 5mm |
Width Tolerance | -0.12mm to 0 |
Ring Material | 52100 Chrome steel |
Ball Material | 52100 Chrome steel |
Cage Material | 300 Series Stainless Steel |
Shield Material | 300 Series Stainless Steel |
Dynamic Load Rating (Cr) (Newtons) | 1064 |
Static Load Rating (Cor) (Newtons) | 474 |
Max Speed (Grease) (X1000 RPM) | 36 |
Max Speed (Oil) (X1000 RPM) | 75 |
Lubrication | Required |
Shaft Mount Type | Press Fit |
Temperature Range | -30° to 110 °C |
ABEC Rating | ABEC-1 |
Radial Clearance Trade No. | C0 |
Radial Clearance | 0.002mm to 0.013mm |
RoHS | Compliant |
Ball Qty | 10 |
Ball Dia | 2.0000mm |
Weight (grams) | 4.05 |
1 Ισχύει μόνο για ανοιχτούς, απλούς τύπους Z, ZZ, single RU και 2RU σε συνθήκες περιστροφής εσωτερικού δακτυλίου. Μέγιστη. Οι ταχύτητες για τους τύπους στεγανοποίησης από καουτσούκ επαφής θα είναι περίπου 50-60 % των παραπάνω τιμών.