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add errata for bearings

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Akbar Rahman 2023-04-30 16:20:39 +01:00
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uni/mmme/2044_design_manufacture_and_project/bearings.md
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@ -4,12 +4,28 @@ date: \today
title: MMME2044 // Bearings title: MMME2044 // Bearings
tags: [ bearings ] tags: [ bearings ]
uuid: 94cac3fd-c352-4fdd-833d-6129cb484b8a uuid: 94cac3fd-c352-4fdd-833d-6129cb484b8a
lecture_slides: [ ./lecture_slides/Lecture 7 - Bearings 1 – Plain Hydrodynamic Bearings 1.pdf ] lecture_slides: [ ./lecture_slides/Lecture 7 - Bearings 1 – Plain Hydrodynamic Bearings 1.pdf, ./lecture_slides/Lecture 11 - Bearings 2 - Rolling Element Bearings.pdf ]
anki_deck_tags: [ bearings ] anki_deck_tags: [ bearings ]
--- ---
> I don't think I ever finished these notes. > I don't think I ever finished these notes.
# Errata
## Lecture Slides 2 (Lecture 11), slide 18
Static load carrying capacity equation is
$$S_0 = \frac{P_0}{C_0}$$
but should be:
$$S_0 = \frac{C_0}{P_0}$$
If the load applied to a bearing is half of its rated capacity,
then you have a safety factor of 2.
Therefore the equation in the slides must be incorrect.
# Types of Bearings # Types of Bearings
<details> <details>