Empty-center rotating-roller joint

Details Empty-center rotating-roller joint Empty-center rotating-roller joint

1990-02-12

1991-02-05

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384569, 384620, 384622, F16C 3361

Patent

active

049899996

ABSTRACT:
An empty-center rotating-roller joint with a non-segmented race (1) that has a lip (17) extending radially outward and with a U-shaped cross-section outer race (2) that encloses the lip. Two rows of rollers (11 & 12) transmit axial loads and one row (13) of rollers transmits radial loads. The rollers roll over hardened roller-contact surfaces (5, 6, 7, 8, 9, & 10) between the races. Roller-contact surfaces (8, 9, & 10) in the form of hardened wires (18, 19, and 20 ) are positioned against the lip of the non-segmented race (1) only. The contact surfaces of the lip of the non-segmented disk-shaped race can be hardened without the hardening process contributing to excess tension in the race. Furthermore, once the teeth on the race have been hardened, very little or no additional machining of the races will be necessary.

REFERENCES:
patent: 4828405 (1989-05-01), Sinner
patent: 4861171 (1989-08-01), Adachi

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