Bearings – Rotary bearing – Plain bearing
Patent
1987-12-08
1989-02-21
Levy, Stuart S.
Bearings
Rotary bearing
Plain bearing
384204, 310 90, 267163, F16C 2304, F16F 118, H02K 708
Patent
active
048060259
ABSTRACT:
Automatic self-aligning ball metals rotatably mounted at both end parts of a rotor shaft in an electric motor are supported by holding devices. The holding device is designed in the form of a disc having a flange portion around the outer periphery thereof. It is formed with a plurality of pawls having different intensities of resilient force which extend in the radial direction from an area located in the proximity of the flange portion. The pawls having a higher intensity of resilient force and the pawls having a lower intensity of resilient force are alternately arranged in the peripheral direction of the holding device and the inner part of each of the pawls is bent at a certain inclination angle. The pawls having a lower intensity of resilient force are adapted to come in contact with the metal ball earlier than the pawls having a higher intensity of resilient force. Each of the pawls having a higher intensity of resilient force has a width wider than the pawls having a lower intensity of resilient force. The pawls having a higher intensity of resilient force may have a thickness more than the pawls having a lower intensity of resilient force on the assumption that they have the same width. Usually, two kinds of pawls which are alternately arranged are used. Three kinds of pawls may be employed.
REFERENCES:
patent: 3483888 (1969-12-01), Wurzel
patent: 3624434 (1971-11-01), Dafler et al.
patent: 3754802 (1973-08-01), Keller
patent: 3770990 (1973-11-01), Winkelmann
patent: 4014596 (1977-03-01), Kazama
Hosoya Yukiteru
Kamiyama Akira
Kimura Yoshimasa
Hannon Thomas R.
Levy Stuart S.
Mitsuba Electric Manufacturing Co. Ltd.
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