Stud type track roller is composed of a stud used as the tray of a group of rollers and a thick wall outer ring. The shoulder of the stud and the surface retaining ring on the stud form the guiding faces on the two sides of the outer ring. When it is running on the plain tray or cam wheel, the inner stress on the rollers will increase due to the deformation of the outer ring. Therefore the rated load should be selected as curve roller column in this operational case.

KR Series, with axial guidance by rib and washer, gap seals
KR... PP   series , with sealing rings
KRE   series , with eccentric collar
KRE... PP series , with eccentric collar & sealing rings
KRV   series , with axial guidance by rib and washer , full complement needle rollers, gap seals
KRV... PP   series , with sealing rings
KRVE   series , with eccentric collar
KRVE... PP   series , with eccentric collar & sealing rings
NUKR   series , with axial guidance by the rolling elements, full complement needle rollers, gap seals
NUKRE   series , with eccentric collar
CR   series , inch system heavy series