Tape guide for use in tape recorder

A tape guide, for use in a tape recorder, comprising:

• a rotatable cylindrical shaft;
• a generally annular member having a major part and mounted on said cylindrical shaft for rotation therewith, said annular member being formed with a coaxially projecting sleeve portion axially extending from the major part of said annular member, said annular member being transpierced by a coaxially extending cylindrical bore for receiving said cylindrical shaft, said cylindrical bore comprising a first section extending through said major part and a second section extending through said sleeve portion, said first section having an internal diameter suitable for establishing secure attachment to said cylindrical shaft, said second section being arranged in alignment with said first section and including a first portion having a diameter substantially equal to the diameter of said first section and a predetermined axial length and a second portion having a greater internal diameter than that of said first section, said second section receiving said cylindrical shaft while maintaining a given clearance between the external periphery of said cylindrical shaft and the internal periphery thereof;
• and
• a ring made of ceramics coaxially and intimately disposed about said sleeve portion for rotation with said annular member, said ring having a bevelled inner edge so that an annular space is defined between said ceramic ring and said annular member, said annular space having an axial length coextensive with the predetermined axial length of said first portion of said second section of said cylindrical bore whereby said second portion having a greater internal diameter than said first section and said annular space reduce stress on said ceramic ring.