Lecture 6 – Bearings and Bushings

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Presentation transcript:

Lecture 6 – Bearings and Bushings EML 2023 – Motor Control Lecture 6 – Bearings and Bushings

Basic Rule The motor’s job is to turn the shaft. The motor does not help to hold the shaft in place. Consider the example of a vertical shaft.

provide radial support at two locations provide axial (vertical) support

Bearings and Bushings

Ball Bearings angular contact ball bearing radial ball bearing thrust ball bearing

Roller Bearings

Self-Aligning Bearings

Bushings with flange no flange

Quick Comparison Bearings Bushings can carry higher loads lower friction inexpensive EML 3005 will teach you how to select a bearing based on: radial and axial loading speed of revolution desired life