Synthetic flanged carrier roller

A carrier roller comprising:

• a. a bearing;
• b. a left-hand axial insert
• i. abutting a portion of the left-hand axial face and the outer radial (circumferential) face of said bearing,
• ii. having an axial opening therein,
• iii. the left-hand axial face of which is shaped to act as one portion of a labyrinth seal, and
• iv. made from a synthetic material which is resilient relative to said bearing;
• c. a right-hand axial insert
• i. abutting a portion of the right-hand axial face and the outer radial (circumferential) face of said bearing,
• ii. having an axial opening therein,
• iii. the right-hand axial face of which is shaped to act as one portion of a labyrinth seal, and
• iv. made from synthetic material which is resilient relative to said bearing;
• d. a roller tire made from a moldable material which is resilient relative to said bearing and said inserts, said roller tire abutting the remainder of the outer radial (circumferential) face of said bearing, the remainder of the right-hand axial face and the radially outer (circumferential) face of said left-hand axial insert, and the remainder of the left-hand axial face and the radially outer (circumferential) face of said right-hand axial insert, whereby said roller tire is molded around said inserts and said bearings, said inserts hold said bearing in position in the assembled carrier roller, and the relative resiliency of said roller tire prevents overload on and consequent damage to said bearing both from initial assembly and shock loads during use;
• e. means for preventing relative movement of said roller tire and said left-hand axial insert;
• f. means for preventing relative movement of said roller tire and said right-hand axial insert;
• g. a roller bushing seal
• i. the left-hand portion of which is sized to fit within an inner race to be recited hereinafter,
• ii. having an axial opening sized to accept a mounting member,
• iii. the right-hand portion of which extends radially outwards beyond said bearing, the axially inner face of said right-hand portion being shaped to complement the radially inner portion of the right-hand axial face of said right-hand axial insert and to act as the second portion of a labyrinth seal, and
• iv. having a through-greasing passage extending from its left-hand axial face to a point short of its right-hand axial face, at which point the through-greasing passage communicates with the radially outer face of said roller bushing seal;
• h. an inner race
• i. mounted on the radially outer face of the left-hand portion of said roller bushing seal,
• ii. positioned to cooperate with said bearing, and
• iii. having a through-greasing passage positioned to cooperate with the through-greasing passage in said roller bushing seal;
• and
• i. a labyrinth ring
• i. having an axial opening defining a radially inner face which abuts at least a portion of the radially outer (circumferential) surface of the left-hand portion of said roller bushing seal,
• ii. the right-hand radially inner face of which abuts the left-hand axial face of said inner race, and
• iii. the right-hand radially outer face of which is shaped to complement the left-hand axial face of said left-hand axial insert and to act as the second portion of a labyrinth seal.