Back to results
US 4,789,249 AGranted
Linear motion bearing and shafts
AssigneeThomson Industries, Inc.
InventorFrancis V. Mutolo
Life of this patent
Estimating the term…
Abstract
A linear motion bearing assembly is provided having a pair of aligned shafts which are fastened together, and a pair of bearings which either roll or slide on the aligned shafts. The shafts may be fastened together along a joint formed on their outer surfaces or they may be fastened together with a spacer disposed between the shafts.
Claims23
A linear motion bearing and shaft assembly for axial movement which comprises:
- a first round support shaft;
- a second round support shaft with its axis parallel to the axis of said first support shaft, rigidly secured together with said first support shaft, said first and second support shafts being independently end supported to allow unrestricted axial movement along their lengths;
- a first linear motion open-type recirculating bearing disposed on said first shaft for axial movement thereon;
- and
- a second linear motion open-type recirculating bearing disposed on said second shaft for axial movement thereon, the openings of said first and second open-type bearings substantially facing each other and wherein said first and second support shafts are rigidly secured together by means including structure which is disposed between said first and second shafts, said structure contacting both support shafts and laterally symmetrical in shape with regard to a plane passing through the axes of said shafts;
- and whereby said means maintains the assembly in torsional balance when subject to uneven or opposing forces.
3 more elements
Dependencies are inferred from the claim text.