OPENTECHNICAL PUBLICATION
OT-2026-000003175

Structure for joining impeller to rotatable shaft

Published: 2026-09-15T19:43:56.460388Z
Permanent URL: https://opentechnical.org/p/OT-2026-000003175
Categories: Industrial Motion & Power Transmission > Rotary Motion

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ABSTRACT

There is provided a structure for joining an impeller to a rotatable shaft,
including (a) a bushing through which the impeller is joined to the rotatable
shaft, the bushing including a hollow cylindrical portion which is to fit into
a recess formed with the impeller and into which the rotatable shaft is to
fit, (b) a first joint structure for joining the bushing to the impeller so
that the bushing is positioned coaxially with the impeller, and (c) a second
joint structure for joining the rotatable shaft to the bushing so that the
rotatable shaft is positioned coaxially with the bushing. The structure
provides a sufficient ability for transferring a torque between an impeller
and a shaft, self-aligning performance between an impeller and a shaft, and
good serviceability for assembling and disassembling, and further provides
higher accuracy in axially positioning an impeller and a shaft and lower
fabrication costs.

1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

[0004] Sheet 4.

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OpenTechnical publication OT-2026-000003175
Published 2026-09-15T19:43:56.460388Z
https://opentechnical.org/p/OT-2026-000003175