Crowned outer ring
NATR - with axial guidance, gap seals on both sides
NATV - full complement needle roller set, with axial guidance, gap seals on both sides
NATR...PP - with axial guidance, axial plain washers on both sides
NATV...PP - full complement needle roller set, with axial guidance, axial plain washers on both sides
Cylindrical outer ring
NATR...X - with axial guidance, gap seals on both sides
NATV...X - full complement needle roller set, with axial guidance, gap seals on both sides
NATR...PPX - with axial guidance, axial plain washers on both sides
NATV...PPX - full complement needle roller set, with axial guidance, axial plain washers on both sides
Code of Yoke Cam Roller and Cam Followers
Cam Followers are manufactured with needle bearings that can accept radial loads yet can't accommodate thrst loading.Can substitute the brands like,IKO,THK