•  
• Bearing Type
• Current code
  NNU 4921 B/SPW33
• The inside diameter of
• d
  105
• Outer diameter
• D
  145
• Thickness
• B
  40
• Basic dynamic load rating
• Cr
  130
• Basic static load rating
• C₀
  260
• Fatigue load
• P_u
  30
• Reference speed
• Reference speed
  5300
• Limit speed
• Limit speed
  6000r/min
• Type
• Type
  Cylindrical Roller Bearings

NNU 4921 B/SPW33Bearings are suitable for large and medium-sized motors, locomotives, machine tool spindles, internal combustion engines, generators, gas turbines, gearboxes, rolling mills, vibrating screens, and hoisting and transportation machinery.