Specifications

• Needle Bearing Type
  Machined Bearing with No Inner Ring
• Bore Diameter
  21 mm
• Outside Diameter
  29 mm
• Overall Width
  20 mm
• Closure Type
  Open
• Radial Dynamic Load Capacity
  3850 lbf
• Operating Temperature Range
  -22 to 248 °F
• Cage Material
  Steel
• Radial Static Load Capacity
  5700 lbf
• Max Rpm
  20000 rpm
• Flanges
  With Flanges
• Series
  NK
• Lubrication Hole Type
  Lubrication Groove & Hole
• Precision Rating
  Not Rated
• UPC_NO
  4047643136259
• Weight
  0.10 lbs
• Roller Type
  Needle Roller
• Product Type
  Needle Roller Bearings
• Long Description
  The NK21/20 Needle Roller Bearing features a 21 mm bore diameter, 29 mm outside diameter, 20 mm overall width, open closure type, and a weight of 0.10 lbs, making it ideal for compact machinery.