Needle Roller Bearings - NA49 and NA69 

Design Attributes

  • Available in single row construction (series 49) and double row construction (series 69). Meets ISO standard 492 covering radial bearings.
  • Radial internal clearance is in accordance with ISO Standard 5753.
  • Low radial cross section with high radial dynamic and static load rating. Must be used with an axial bearing.
  • Available with special clearance and higher stabilizing heat treatment to accommodate conditions normally found in continuous casters.
  • Steel cage improves roller guidance and lubricating grease capacity. Available as sealed assembly (single or double) 110 degrees Celsius/230 degrees Fahrenheit maximum continuous operating temperature.
  • Lubricating groove and holes in outer ring improve grease flow.