Automatically tiltable small roller structure of slide bearing t

Details Automatically tiltable small roller structure of slide bearing t Automatically tiltable small roller structure of slide bearing t

1987-09-08

1988-09-13

Levy, Stuart S.

Bearings

Rotary bearing

Antifriction bearing

226194, 242 76, 384 49, F16C 2308, F16C 1306, B65H 2002, B65H 2700

Patent

active

047705507

ABSTRACT:
An automatically tiltable small roller structure, which comprises a shaft, a small roller including an elastic rubber cylinder and a sleeve, and a plurality of bearing balls. The sleeve is integral with the inner periphery of the elastic rubber cylinder, and mainly composed of polytetrafluoroethylene (fluoroplastics). The shaft is fitted in the roller structure. The bearing balls are fitted in a circumferential or annular groove formed on the shaft, and are provided such that they are in rolling contact with the inner periphery of the roller and the outer periphery of the shaft in the groove. The groove is provided at a middle point between the opposite ends of the roller. The depth of the groove is set such that the bearing balls project slightly from the groove, so that a slight gap is formed between the inner periphery of the roller and the outer periphery of the shaft. The axes of the roller and shaft are thus slightly tiltable in relation to each other.

REFERENCES:
patent: 840010 (1907-01-01), Ragsdale
patent: 1160592 (1915-11-01), Goldman
patent: 1973064 (1934-09-01), Gwinn
patent: 2150796 (1939-03-01), Brouwer et al.
patent: 3907234 (1975-09-01), Sato et al.
patent: 4122985 (1978-10-01), Nelson
patent: 4518134 (1985-05-01), Oishi et al.
patent: 4541557 (1985-09-01), Fell et al.

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