Bulk mixing container and locking bearing therefor

A bulk mixing container, comprising:

• a container housing having a bottom, at least one side wall, and a top;
• an agitator mounting structure located at the top of said container housing and having an upper surface located outside said container housing and a lower surface located inside said container housing;
• an agitator assembly including a shaft extending through an opening in said agitator mounting structure;
• and
• a bearing comprising a body extending from a first axial end to a second axial end and having a central cylindrical bore, said body being mounted within said opening of said agitator mounting structure with said shaft extending into said container housing through said bore to permit rotation of said shaft relative to said container housing to thereby stir contents within said container housing;
• said body including a radially-extending flange at said first axial end for engagement with said upper surface of said agitator mounting structure at said opening to thereby prevent said bearing from passing through said opening, and said body including at least one locking tab locating at said second axial end that extends radially from said body, said locking tab providing a lower retention feature that engages said lower surface of said agitator mounting structure at said opening, whereby said bearing is positively locked in place within said opening by engagement of said flange with said upper surface of said agitator mounting structure and engagement of said retention feature of said locking tab with said lower surface of the agitator mounting structure.