Distributor Finder

Product Finder


Highly rigid Double-Row Cylindrical Roller Bearings for Lathe Main Shaft applications. This is the first-ever precision bearing to adopt an PPS resin cage (designated TB in NSK), whilst maintaining its functionality to deliver high accuracy & high rigidity in ultra high-speed applications.

Condition Description

  • High Speed
  • High Temperature


  • Automotive
  • Machine Tools

Product Features

  • High strength, roller guided resin cage (TB).
  • Outer ring has standard lubrication hole.
  • Low temperature rise due to optimum internal design and cage configuration.
  • TB cage allows faster running speeds


  • TB cage temperature resistance up to 220°C
  • TB cage has a lower temperature rise than conventional cages
  • Grease life in the TB cage is typically more than 8 times higher than that of conventional & brass cages
  • Range includes NNU type which has double rib outer and NN type which features excellent grease discharge during ‘running in’
  • The outer ring is available with standardised lubrication hole and groove (E44) specification. This allows easy interchange
NN 30 17   TB KR E44 CC0 P4
Show Description
NNBearing type
30Dimension series
17Bore number
Internal design
KRTapered bore
E44Lubrication holes
CC0Radial clearance