•  
• Bearing Type
• Current code
  W 639/2-2Z
• The inside diameter of
• d
  2
• Outer diameter
• D
  6
• Thickness
• B
  3
• Basic dynamic load rating
• Cr
  0.19
• Basic static load rating
• C₀
  0.051
• Fatigue load
• P_u
  0.002
• Reference speed
• Reference speed
  180000
• Limit speed
• Limit speed
  90000r/min
• Type
• Type
  Deep groove ball bearings

W 639/2-2ZBearings are suitable for gearboxes, instruments, motors, household appliances, internal combustion engines, transportation vehicles, agricultural machinery, construction machinery, construction machinery, roller skates, yoyos, etc.