From c0c565a104fa0332ddf7b42b0e04699618b6e07e Mon Sep 17 00:00:00 2001 From: Alvie Rahman Date: Sun, 30 Apr 2023 16:20:39 +0100 Subject: [PATCH] add errata for bearings --- .../bearings.md | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/uni/mmme/2044_design_manufacture_and_project/bearings.md b/uni/mmme/2044_design_manufacture_and_project/bearings.md index 90d5d32..7c48f31 100755 --- a/uni/mmme/2044_design_manufacture_and_project/bearings.md +++ b/uni/mmme/2044_design_manufacture_and_project/bearings.md @@ -4,12 +4,28 @@ date: \today title: MMME2044 // Bearings tags: [ bearings ] 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 ] --- > 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