•  
• Bearing Type
• Current code
  71904 ACE/P4AH
• The inside diameter of
• d
  20
• Outer diameter
• D
  37
• Thickness
• B
  9
• Basic dynamic load rating
• Cr
  4.68
• Basic static load rating
• C₀
  2.28
• Fatigue load
• P_u
  0.098
• Reference speed
• Reference speed
  52000
• Limit speed
• Limit speed
  78000r/min
• Type
• Type
  Angular contact ball bearings

71904 ACE/P4AHAngular contact ball bearings are mainly suitable for: machine tool spindles, high-frequency motors, gas turbines, centrifugal separators, small car front wheels, differential pinion shafts, booster pumps, drilling platforms, food machinery, indexing heads, repair welding machines , low-noise cooling towers, mechanical and electrical equipment, painting equipment, machine tool grooves, arc welding machines and other equipment