Needle Roller Bearings

Radial Bearings

Single & Double Row Series -
  Metric (NA, NKI, NKIS)
  Inch (AB/LRB, HJ/IR)

Cage Assemblies -
  Metric (AB, MB, 200000, 300000, 400000, 500000,   600000)

Without Inner Ring -
  Metric (NK, NKS, RNA 4900, RNA 6900)
  Inch (MR)

Inner Ring -   
  Inch (MI)