A pipette tip coupling device for coupling a pipette tip to a pipette device, the pipette tip coupling device comprising: a shank having a proximal end face and a widest shank portion with a shank diameter; a coupler body distal to the shank, the coupler body having a widest coupler body portion with a coupler body diameter; a distal stem portion; a distal end plate; an open-ended interior circumscribing surface forming an open passageway extending longitudinally from the proximal end face through the distal end plate; an elastomeric element disposed around the distal stem portion and adjacent to the distal end plate; characterized in that: the diameter of the widest coupler body portion is greater than the diameter of the widest shank portion; and a pipette tip ball assembly circumscribing the shank is provided comprising: a plurality of spherical balls; and a ring-shaped raceway body comprising: a plurality of circumferentially spaced apart guide sockets for carrying the plurality of spherical balls; and a plurality of circumferentially spaced apart circular ball openings for receiving and retaining the plurality of spherical balls. a shank having a proximal end face and a widest shank portion with a shank diameter; a coupler body distal to the shank, the coupler body having a widest coupler body portion with a coupler body diameter; a distal stem portion; a distal end plate; an open-ended interior circumscribing surface forming an open passageway extending longitudinally from the proximal end face through the distal end plate; an elastomeric element disposed around the distal stem portion and adjacent to the distal end plate; characterized in that: the diameter of the widest coupler body portion is greater than the diameter of the widest shank portion; and a pipette tip ball assembly circumscribing the shank is provided comprising: a plurality of spherical balls; and a ring-shaped raceway body comprising: a plurality of circumferentially spaced apart guide sockets for carrying the plurality of spherical balls; and a plurality of circumferentially spaced apart circular ball openings for receiving and retaining the plurality of spherical balls. the diameter of the widest coupler body portion is greater than the diameter of the widest shank portion; and a pipette tip ball assembly circumscribing the shank is provided comprising: a plurality of spherical balls; and a ring-shaped raceway body comprising: a plurality of circumferentially spaced apart guide sockets for carrying the plurality of spherical balls; and a plurality of circumferentially spaced apart circular ball openings for receiving and retaining the plurality of spherical balls. a plurality of spherical balls; and a ring-shaped raceway body comprising: a plurality of circumferentially spaced apart guide sockets for carrying the plurality of spherical balls; and a plurality of circumferentially spaced apart circular ball openings for receiving and retaining the plurality of spherical balls. a plurality of circumferentially spaced apart guide sockets for carrying the plurality of spherical balls; and a plurality of circumferentially spaced apart circular ball openings for receiving and retaining the plurality of spherical balls.