NUB Cylindrical Roller Bearings

NSK’s NUB series cylindrical roller bearings are designed specifically to ensure that yield, productivity and cost-efficiency is maximized in continuous casting plants, accommodating roll shaft bending and expansion in strand guide rolls while running with reduced sliding friction and wear for a longer, reliable operating life.

NUB Series Cylindrical Roller Bearings for Continuous Casting | 3X Longer Life | NSK

Design Features

  • Single row, full complement cylindrical roller bearing
  • Extremely high-capacity internal design parameters, with maximum size and quantity of rollers
  • Optimized roller crowning reduces internal sliding friction and wear while absorbing roll bending
  • Non-separable design with outer ring ribs and inner ring retaining rings
  • Rib-free inner ring permits axial displacement in both directions
  • Relative movement characteristics of inner and outer raceways smoothly absorb roll expansion
  • Dimensionally interchangeable with conventional bearing types
  • With C4 clearance as standard

Operating Benefits

  • Extended operating life – as much as 3 times that of alternative solutions
  • Reduced internal differential sliding friction and wear
  • Accommodates roll shaft bending / misalignment
  • Smoothly absorbs roll expansion resulting from high operating temperatures
  • Easy installation with non-separable design