 W678AZ NTN 8x12x3.5mm  Da max. 11.2 mm Deep groove ball bearings
  W678AZ NTN 8x12x3.5mm  Da max. 11.2 mm Deep groove ball bearings
                                

| Bearing number | W678AZ | 
| Size (mm) | 8x12x3.5 | 
| Brand | NTN | 
| Bore Diameter (mm) | 8 | 
| Outer Diameter (mm) | 12 | 
| Width (mm) | 3.5 | 
| d | 8 mm | 
| D | 12 mm | 
| B | 3.5 mm | 
| C | 3.5 mm | 
| r min. | 0.1 mm | 
| da min. | 8.8 mm | 
| da max | 9.1 mm | 
| Da max. | 11.2 mm | 
| ra max. | 0.1 mm | 
| Weight | 0.86 Kg | 
| Basic dynamic load rating (C) | 0.515 kN | 
| Basic static load rating (C0) | 0.252 kN | 
| (Grease) Lubrication Speed | 38 000 r/min | 
| (Oil) Lubrication Speed | 45 000 r/min | 
 Detailed  Parameters
  Detailed  Parameters
                                     parameter:
  parameter:
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