Miniature ball bearing
Miniature ball bearing 688 belongs to 68 series ball bearing .It’s low noise and used for electric motor, motor bearing, made of bearing steel(GCr15), high precision rotating, ABEC-3 (P6), ABEC-5(P5),low friction torque and high speed running, can work in the high or low temperature environment, food machinery, stainless steel bearing, made of stainless steel(9Cr18), corrosion resistance, food grade grease, for food machinery such as juicer, Coffee Machine.
Miniature ball bearing 688
| Bearing Type | Ball |
| For Load Direction | Radial |
| Construction | Single Row |
| Seal Type | Open,ZZ,2RS |
| Part Number | 688 |
| For Shaft Diameter | 8mm |
| Bore Dia (d) | 8 mm |
| Bore Dia Tolerance | -0.008mm to 0 |
| For Housing ID | 16mm |
| Outer Dia (D) | 16mm |
| Outer Dia Tolerance | -0.008mm to 0 |
| Width (B) | 4mm |
| 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) | 43 |
| Lubrication | Required |
| Shaft Mount Type | Press Fit |
| Temperature Range | -30° to 110 ℃ |
| 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) | 3.11 |
