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Mechanical Maintenance Applications

Principles of Mechanics, Part 1

Course #: 286007
Duration: 10 hours
Course Prerequisites: Practical Geometry and Trigonometry (5567); Basic Industrial Math (Block X21); Practical Measurements (Block X22);
What Students Learn: Matter and Energy; Scope of Mechanics; Forms of Matter; Forms of Energy; Physical Properties of Bodies; Motion of Bodies; Velocity; Acceleration and Retardation; Weight and Mass; Work and Energy; Coordinate Systems; Precision in Computations; Newton's Laws of Motion; Uniform Motion; Variable Motion.

Special Notes:

  • This updated course replaces course 6426A.
  • The entire course consists of study units 286007-286008.

Principles of Mechanics, Part 2

Course #: 286008
Duration: 10 hours
Course Prerequisites: Practical Geometry and Trigonometry (5567); Basic Industrial Math (Block X21); Practical Measurements (Block X22);
What Students Learn: Friction; Nature of Friction; Sliding Friction; Rolling Friction; Machine Elements; Levers; Inclined Plane; Wedges and Screw Threads; Wheel and Axle; Tackle; Pulleys; Gearing; Belts and Chains; Simple Harmonic Motion Centrifugal Force.

Special Notes:

  • This updated course replaces course 6426B.
  • The entire course consists of study units 286007-286008.

Bearings and Seals, Part 1

Course #: 286093
Duration: 10 hours
What Students Learn: Preview
Bearings of one type or another have been used since the invention of the most primitive machines. Bearings support rotating machine shafts as well as translating movement in machine components, and bearings keep the components in correct alignment.
This study unit, will primarily discuss plain bearings. However, so that students understand the fundamental differences, it will briefly cover antifriction bearing operation. Students will get a basic understanding of the differences between plain bearings and antifriction bearings. The study unit will then discuss the various types of plain bearings and their uses in greater detail.
Because bearings are used in such a wide range of applications, there are many factors to consider when selecting a bearing for a specific need. It is important that students understand these factors and the process for choosing the correct bearing and lubrication method for an intended application. In this study unit, students will also learn about the different techniques and tools used to properly install, lubricate, and remove bearings.
Objectives
When a student completes this study unit, he and she will be able to:

  • Understand what friction is and how bearings help reduce it.
  • Explain the difference between plain and antifriction bearings.
  • List the different types of plain bearings.
  • Understand the characteristics of plain bearings.
  • Know the importance of proper handling and installation of bearings.
  • Recognize the importance of proper bearing lubrication.
  • List the different materials used to make plain bearings and how material type affects their use.
  • Explain how to prevent premature bearing failure.

  • Contents
    Introduction to Bearings; Journal Bearings; Other Types of Plain Bearings; Installing and Maintaining Plain Bearings; Plain Bearing Failure.

    Special Notes: This updated course replaces 2602.

Bearings and Seals, Part 2

Course #: 286094
Duration: 10 hours
What Students Learn: Preview
Bearings and seals are used in most every type of machine. This study unit will help you learn how to identify, lubricate, maintain, and replace antifriction bearings and seals.
As students know, there are two types of bearings, plain and antifriction. Plain bearings use a sliding motion to reduce friction, while an antifriction bearing contacts the shaft it supports with a rolling element. This rolling motion helps reduce friction. The rolling motion produces less friction than the sliding motion produced from plain bearings. Therefore, the rotation of a shaft is smoother with an antifriction bearing.
In this study unit, students will learn about the various types of antifriction bearings and their different parts. They will also learn about the basic characteristics of these bearings, and how to apply them to a particular shaft. The study unit will also cover proper installation and maintenance and properly applying them. An important part of proper application is correctly combining the various materials available in bearings with the material the shaft is made from.
This study unit will also help students better understand seals. They will learn what a seal does, the different types of seals available, and how they are used. Students will also learn; the various types of material that seals are manufactured from, their advantages, the importance of maintaining bearings, and how to replace seals when they fail.
Objectives
When a student completes this study unit, he and she will be able to:

  • Identify the various elements used in antifriction bearings.
  • Properly identify and correct problems in antifriction bearings.
  • Choose the proper seal.
  • Choose and apply the proper lubricants for seals and antifriction bearings.
  • Understand the need for clearance and tolerances in bearings.
  • Identify the various parts of a seal.

  • Contents
    Antifriction Bearings; Antifriction Bearing Replacement; Maintaining Antifriction Bearings; Installing and Maintaining Lip Seals.

    Special Notes: This updated course replaces 2602.

Lubrication, Part 1

Course #: 286091
Duration: 10 hours
What Students Learn: Preview
Since the development of machinery, there has been a war against friction. Friction causes machinery to vibrate excessively, sound louder, use more energy to do a given job, and, most importantly, wear out faster. To counter friction, lubricants have been developed.
Lubricants were once basic animal fats and plant oils used on simple machines. Today's lubricants are chemical compositions specially designed for specific types of machines and their work environment. There are now hundreds of types of oils and grease to select from, each tailored specifically for the machine or an individual component of any given machine.
This study unit is designed to give students the information they need to understand how lubricants are blended into these very special compounds and how they are selected for various applications.
Objectives
When a student completes this study unit, he and she will be able to:

  • Describe the various types of friction.
  • Discuss how materials wear.
  • List the various functions lubricants perform in industry.
  • Explain how lubricants reduce friction.
  • Classify lubricants depending upon their composition, properties, and additives.
  • Understand why certain lubricants are chosen for certain tasks.
  • Explain how to safely handle and store lubricants.

  • Contents
    Friction and Wear; The Purpose of Lubricants; How Lubricants are Classified; How Lubricants Work; Proper Lubricant Selection; Handling and Storing Lubricants Safely.

    Special Notes: This updated course replaces 2531A.

Lubrication, Part 2

Course #: 286092
Duration: 10 hours
What Students Learn: Preview
Lubricating equipment is one of the most important industrial maintenance activities performed. Lubricants reduce friction, which saves on energy costs. They reduce wear, which saves on equipment maintenance costs. Proper lubrication significantly reduces machine downtime resulting from broken or worn out components. In addition, proper lubricating practices help keep a machine in tolerance for a longer period of time.
In today's world of twenty-four-hour-a-day, seven-days-a-week, plant operation, the role of lubrication takes on even greater importance. Equipment must be lubricated on a timely schedule, in the proper amounts, and with the correct lubricants to sustain long work cycles between planned shutdowns. This study unit will show you how to properly apply lubrication and maintain lubrication systems.
Objectives
When a student completes this study unit, he and she will be able to:

  • Explain how to manually apply various types of lubricants in an industrial environment.
  • Describe total-loss lubrication.
  • Identify a nonloss lubrication system's components and describe their operation.
  • Explain how to maintain a nonloss lubrication system.
  • Identify the proper lubrication procedures to use for special industrial applications including sealed bearings, oil-impregnated bearings and food-processing plants.
  • Explain how lubricant-conditioning systems work and how to maintain them.
  • Describe how automatic lubrication systems work and how to maintain them.
  • List the tasks involved in preventive and predictive lubrication maintenance.

  • Contents
    Manual Methods of Lubrication; Lubricating Total-Loss Systems; Nonloss Lubrication Systems; Lubrication in Special Environments; Lubrication Conditioning; Automatic Lubrication Systems; Preventive and Predictive Lubrication Maintenance.

    Special Notes: This updated course replaces 2531B.

Industrial Seals

Course #: VS62XX
Duration: 1 hours
What Students Learn: This course is designed to familiarize the student with the basics of various types of gaskets, packing and seals. The course includes all types and properties, inspection, installation and troubleshooting.
Components: Industrial Seals: Types, Materials and Properties (VS6201); Industrial Seals: Gaskets and Packings; Inspection and Installation (VS6202); Industrial Seals: Mechanical Face Seals; Troubleshooting and Installation (VS6203);

Mechanical Power Transmission

Course #: 286015
Duration: 10 hours
What Students Learn: Gears and Enclosed Gear Drives; Electric Motors; Maintenance of Gearing; Precision Chains and Chain Drives; Belt Drives; Correction for Shaft Misalignment; Clutches; Application Considerations for Mechanical Power Transmission.

Special Notes: This updated course replaces course 2606.

Properties of Materials

Course #: 686005
Duration: 10 hours
Course Prerequisites: Formulas (186012); Practical Measurements (Block X22);
What Students Learn: Effects of Forces on Materials; Stress and Deformation; Elastic Failure; Cohesive Properties of Solids; Heat and Cold Treatment; Modulus of Elasticity; Temperature Stresses; Structural Members; Tension Members; Shear; Connection of Steel Members; Members Subjected to Compound Stress; Beams; Columns; Shafts; Rope Drives; Properties of Metals, Nonferrous Metal, and Alloys.

Special Notes: This updated course replaces course 5887.

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