Bearings – Rotary bearing – Antifriction bearing
Patent
1993-01-04
1994-11-15
Hannon, Thomas R.
Bearings
Rotary bearing
Antifriction bearing
384215, 384535, F16C 1722, F16C 2700
Patent
active
053641949
ABSTRACT:
An apparatus for an axially displaced flexural bearing support assembly including a unitary or monolithic bearing support base member having a bearing receiving tube supported by a first and second generally parallel arrangement of flexural spoke members to control bearing pre-load due to axial differential expansion while eliminating radial displacement of the spindle or shaft supported within the tube. The spoke members of each arrangement include a plurality of spoke members arranged in parallel planes generally perpendicular to the axis of a spindle insertable within and supported within the tube by means of bearings. In the preferred embodiment, there are three spokes for each set in each plane, with the spokes being equiangularly displaced. To facilitate casting as a monolithic unit, one set of spokes is offset from the other by an angle half the angle between spokes, that is sixty degrees, and further, the width of the spokes is such that no spoke portion overlies any other spoke portion, as viewed from a line along the axis. The assembly also includes a generally hollow housing portion having a second bearing receiving opening, the housing and the base support member being configured for pinning together to permit finish boring of the two coaxially aligned bearing support members at the same time to the same tolerance to ensure alignment of the centers of the openings for receiving the bearings and spindle therein. The housing is configured for receiving a scanner drive motor therein.
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patent: 4235483 (1980-11-01), Schulze
patent: 4564300 (1986-01-01), Schulze
Ampex Systems Corporation
Hannon Thomas R.
Mesaros John G.
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