Roller bearing with annular retaining disks

In a journal bearing wherein an inner member with a cylindrical outer peripheral surface is coaxially surrounded by an outer member with a cylindrical inner peripheral surface, said peripheral surface being separated by an annular clearance occupied by a multiplicity of rotary bodies holding said members apart while enabling relative rotation thereof about their common axis, said clearance being bounded on at least one end partly by a first annular disk rigid with one of said members and partly by a second annular disk coplanar with said first disk, the other of said members having at least one end face with peripherally spaced retaining lugs forming a bayonet coupling with coacting lugs of said second disk for holding same in a locking position on said other of said members,

• the improvement wherein said other of said members is provided with a spring-loaded detent received in an axially extending bore of said end face between two of said retaining lugs and in confronting relationship with a marginal zone of said second disk, said marginal zone being formed with a depression receiving said detent in said locking position for preventing a detachment of said second disk.