A cam follower comprising: a shaft extending from a first axial end to a second axial end along a shaft axis (A), the shaft having a first groove proximate to the first axial end , a shoulder formed in the shaft between the first groove and the second axial end , and a first clip radially engaging the first groove ; a tire defining an interior area, the tire having a flange extending radially inward from one axial end of the tire proximate the first axial end of the shaft ; and a first ball bearing and a second ball bearing , the first ball bearing having a first plurality of spherical balls disposed between a first inner ring and a first outer ring , the second ball bearing having a second plurality of spherical balls disposed between a second inner ring and a second outer ring , the first outer ring and the second outer ring extending at least partially into the interior area of the tire , the first inner ring axially abuts the second inner ring and the first clip , the second inner ring axially abuts the shoulder and the first inner ring , the first outer ring axially abuts the second outer ring and the flange , and the second outer ring axially abuts the first outer ring ; wherein the first clip axially retains the first inner ring and the second inner ring on the shaft between the first clip and the shoulder , characterized by a second groove extending radially outward at an opposite axial end of the tire opposite said one axial end of the tire and the second outer ring axially abutting a second clip engaging the second groove , and wherein the first ball bearing and the second ball bearing have the first spherical balls and the second spherical balls , the inner the first inner ring , the first outer ring , the second inner ring and the second outer ring adjusted in geometry to stipulate an outer diameter of the tire , and to minimize the internal clearance (C1, C2) in the respective first ball bearing and second ball bearing , the clearance (C1, C2) of the first bearing being defined between the first spherical balls and a corresponding first inner race or a corresponding first outer race and the clearance (C1, C2) of the second bearing being defined between the second spherical balls and a corresponding second inner race or a corresponding second outer race , the internal clearance (C1, C2) having a value between 0.0051 mm and 0.0203 mm thereby optimizing load distribution and service life. a shaft extending from a first axial end to a second axial end along a shaft axis (A), the shaft having a first groove proximate to the first axial end , a shoulder formed in the shaft between the first groove and the second axial end , and a first clip radially engaging the first groove ; a tire defining an interior area, the tire having a flange extending radially inward from one axial end of the tire proximate the first axial end of the shaft ; and a first ball bearing and a second ball bearing , the first ball bearing having a first plurality of spherical balls disposed between a first inner ring and a first outer ring , the second ball bearing having a second plurality of spherical balls disposed between a second inner ring and a second outer ring , the first outer ring and the second outer ring extending at least partially into the interior area of the tire , the first inner ring axially abuts the second inner ring and the first clip , the second inner ring axially abuts the shoulder and the first inner ring , the first outer ring axially abuts the second outer ring and the flange , and the second outer ring axially abuts the first outer ring ; wherein the first clip axially retains the first inner ring and the second inner ring on the shaft between the first clip and the shoulder , <EOS>