Patent ID: 7877043

Claim:
A constant-velocity joint comprising: an outer ring having an opening at a first axial end thereof, said outer ring including a radially inner wall and a radially outer wall which define an annular space therein, at least one of said radially outer wall and said radially inner wall having three axially extending track grooves circumferentially spaced apart from each other by 120 degrees; a cage shaped to be inserted in said annular space, said cage including a plurality of pockets having a radially inner open end and a radially outer open end, said pockets disposed at positions corresponding to said track grooves, respectively; and a plurality of balls, each ball of the plurality of balls received in a respective pocket of said plurality of pockets, so as to roll along said track grooves; wherein said outer ring comprises a synthetic resin; and wherein said cage includes a plurality of arrangements disposed at said pockets, said plurality of arrangements configured to prevent said balls from radially outwardly or radially inwardly coming out of said pockets, when said cage is pulled out of said outer ring with said each ball of said plurality of balls received in said respective pocket of said plurality of pockets, said arrangements being disposed at said radially inner and outer open ends of said pockets.