Delores Selections » Bearings

How to select rolling element bearings

lesa — Fri, 03 Jun 2011 00:49:21 +0000

This is one of the SEED curriculum engineering design guides. SEED (Sharing Experience in Engineering Design) is an organisation of teachers of design in tertiary education.

You can use this guide to determine the attributes required of a rolling element bearing to meet a specific power transmission need and then to select one from those offered by manufacturers. If you are unfamiliar with rolling element bearings then review the page on Bearing types and characteristics. This guide comes in the following sections:
1. Introduction 2. Specify the factors that determine the choice of the bearing 3. Decide the required type of bearing 4. Determine the equivalent load and speed 5. Determine the equivalent bearing life 6. Determine the dynamic load rating 7. Select a bearing and check.

Other information includes details of bearing manufacturers, references and standards, and a list of the notation and symbols used in the guide.

[Description and screenshot taken from the SEED Curriculum for Engineering Design page for this guide. (c) The Design Society used under the terms of their (CC BY-NC-SA 3.0) license.]

Elements of mechanical design

philb — Mon, 29 Nov 2010 10:16:17 +0000

This MIT OpenCourseWare includes lecture notes, assignments and projects from the Elements of Mechanical Design course taught as part of the mechanical engineering programme at MIT in spring 2009.

This is an advanced course on modelling, design, integration and best practices for use of machine elements such as bearings, springs, gears, cams and mechanisms. Modelling and analysis of these elements is based upon extensive application of physics, mathematics and core mechanical engineering principles (solid mechanics, fluid mechanics, manufacturing, estimation, computer simulation, etc.). These principles are reinforced via (1) hands-on laboratory experiences wherein students conduct experiments and disassemble machines and (2) a substantial design project wherein students model, design, fabricate and characterize a mechanical system that is relevant to a real world application. Students master the materials via problems sets that are directly related to, and coordinated with, the deliverables of their project. Student assessment is based upon mastery of the course materials and the student’s ability to synthesize, model and fabricate a mechanical device subject to engineering constraints (e.g. cost and time/schedule).

[Description and screenshot taken from MIT OCW page for this course. (c) MIT used under the terms of their CC-NC-SA license.]

Mechanical engineering design webcasts from UC Berkeley

philb — Fri, 26 Nov 2010 16:19:53 +0000

A series of audio recordings from the autumn 2006 UC Berkeley course ME 102 on mechanical engineering design. The course looks at the application of principles of mechanics, materials science, and manufacturing processes to the design of components and complete machines that must meet prescribed functional requirements. It also presents a synthesis and analysis of a major machine design project. The recorded lectures can be downloaded by right-clicking and saving the following links:

Lecture Archive
Microprocessors & Labs
Power Screw & Fastner
Bolt & Preload 1
Bolt & Preload 2
Fatigue Loading 1
Fatigue Loading 2
Rolling-Contact Bearings 1
Rolling-Contact Bearings 2
Gears 1
Gears 2
Gears 3
Gears 4
Gear Train 1
Gear Train 2
Gear Force
Review for Exam
Motors
Feedback Control
Electronics Components