Journal for a frame fork of a bicycle

Details Journal for a frame fork of a bicycle Journal for a frame fork of a bicycle

1989-06-28

1990-06-19

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384513, 384515, F16C 3372

Patent

active

049348396

ABSTRACT:
A journal for a frame fork of a bicycle includes an upper cap and a lower cap with two or more balls rotatably received between the upper cap and the lower cap. The upper cap and the lower cap are cylindrical shaped. An inner thread is formed at an upper half of the upper cap and a track surface is formed in an inner surface of a lower half of the upper cap. An annular flange is formed on an outer surface of the lower cap and an inclined and curved surface is formed at an upper and outer edge of the lower cap such that the balls are receivable between the inclined surface of the lower cap and the track surface of the upper cap. A sealing ring is seated above the flange for preventing water or dust from entering the journal.

REFERENCES:
patent: 2866672 (1958-12-01), Black
patent: 3157442 (1964-11-01), Gaubatz
patent: 4545691 (1985-10-01), Kastan et al.
patent: 4563099 (1986-01-01), Brandenstein et al.

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