Yoke type track rollers are single or double row units fitted on studs.  INA bearings company provide the track roller bearings include two types: screw and axial guidance. The type NATR10-PP-A belong to INA  needle roller bearing, axial guidance bearing, NATR series, with axial guidance, axial plain washers on both sides. NATR series roller contains outer ring, inner ring, needle retainer assembly and the retaining rings which are pressed and fixed by the two sides of inner ring.

INA                   Torrington       NSK                   IKO
NATR5PP       NATR5PP       FYCJS-5R        NART5UUR
NATR6PP       NATR6PP       FYCJS-6R        NART6UUR
NATR8PP       NATR8PP       FYCJS-8R        NART8UUR
NATR10PP     NATR10PP     FYCJS-10R     NART10UUR
NATR12PP     NATR12PP     FYCJS-12R     NART12UUR
NATR15PP     NATR15PP     FYCJS-15R     NART15UUR
NATR17PP     NATR17PP     FYCJS-17R     NART17UUR
NATR20PP     NATR20PP     FYCJS-20R     NART20UUR
NATR25PP     NATR25PP     FYCJS-25R     NART25UUR
NATR30PP     NATR30PP     FYCJS-30R     NART30UUR
NATR35PP     NATR35PP     FYCJS-35R     NART35UUR
NATR40PP     NATR40PP     FYCJS-40R     NART40UUR
NATR50PP     NATR50PP     FYCJS-50R     NART50UUR