Bearings – Rotary bearing – Antifriction bearing
Patent
1989-08-24
1990-10-23
Hannon, Thomas R.
Bearings
Rotary bearing
Antifriction bearing
384492, 384505, F16C 3358, F16C 3362
Patent
active
049647423
ABSTRACT:
A ball bearing formed with an outer ring including (i) an inner cylindrical body made of a steel sheet of which one peripheral edge is bent to form a first flange and (ii) an outer cylindrical body of which one peripheral edge is bent to form a second flange and which is fitted to the inner cylindrical body. An inner ring made of any suitable material is provided on its outer circumferential surface thereof with a raceway groove. The inner ring has a shaft hole of any suitable configuration according to a section configuration of a shaft to be inserted into the shaft hole. The first and second flanges of the outer ring are drawn in a direction toward balls in an annular space between the outer and inner rings order to prevent looseness thereof, the parts of the flanges in the vicinity of a Pitch Circle Diameter of the balls being bent and drawn toward the balls in parallel with a rotational axis of the ball bearing, the radially inward-directed parts of the flanges which extend radially inwardly from the drawin portions are at right angles to the rotational axis of the ball bearing and the inner lateral surfaces of the radially inward parts being flat corresponding to the Pitch Circle Diameter of the balls, thus serving as ball guiding members. Gaps formed between the outer circumferential surface of the inner ring and the ends of the flanges of the outer ring, are small so that the ball bearing has a sealing structure.
REFERENCES:
patent: 1353874 (1920-09-01), Wego
patent: 1720255 (1929-07-01), Adams
patent: 2768725 (1956-10-01), Foulds et al.
patent: 3250581 (1966-05-01), Honroth
patent: 3657781 (1972-04-01), Camosso
patent: 4603025 (1986-07-01), Landay et al.
Inoue Teruichi
Kagawa Akinobu
Kametani Masaru
Nakamura Koji
Greigg Edwin E.
Hannon Thomas R.
Koyo Seiko Co. Ltd.
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