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CCOG for APR 170 Fall 2022

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Course Number:
APR 170
Course Title:
Power Transmission Systems
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:

Course Description

Introduces the array of power transmission methods utilized in an industrial environment especially in manufacturing. Includes gearing and gear boxes, belt drives, magnetic couplings, direct couplings, chain drives, conveyor belts, vibration analysis, lubrication systems, predictive maintenance, planned preventive maintenance, corrective maintenance and troubleshooting. Emphasizes safety when working on or near industrial power transmission systems. Prerequisites: APR 168, and (WR 90 and RD 90) or IRW 90 and MTH 20 or equivalent placement or department permission. Audit available.

Addendum to Course Description

Required Course for Apprentices registered in the Millwright/Industrial Maintenance Technician Apprenticeship Program. It is open to any other student but requires Department Permission to take this course.

Intended Outcomes for the course

  • Use power transmission theory to service, install, maintain, analyze, and replace different types of power transmission systems found at an industrial worksite.
  • Use the physical theories of horsepower transfer, speed ratios, torque, gear ratios, alignment, and tensioning in order to service, install, maintain, analyze and replace power transmission systems found at an industrial worksite, especially at a manufacturing worksite.
  • Read and interpret schematics, assembly drawings, and manufacturers' specifications to  install, repair, and replace the power transmission systems found at an industrial worksite.
  • *Identify mechanical and/or electrical industrial systems (*required statewide outcome).
  • *Describe procedures for proper removal and disposal of hazardous materials (*required statewide outcome).

Course Activities and Design

Course design is primarily lecture and demonstration using Power Point presentations and presentations from industry specific online sources.

Course Activities include:

  • Practice with assembly drawings, schematics, and manufactures' specifications
  • Calculations for gear ratios, speed ratios, horsepower, and torque
  • Practice with trouble shooting flow charts

Outcome Assessment Strategies

Assessment will be accomplished using skills' checklists filled out by an adequate sampling of Millwright/Industrial Maintenance Technician Training Agents and/or an Apprentice's Journey Person.

Course Content (Themes, Concepts, Issues and Skills)

  • Sheaves and bushings
  • Shafts
  • Belts including flat belts, V-belts, belt sets
  • Sheave and belt allignment
  • Chain Drive Couplings
  • Sprockets
  • Roller chain
  • Inverted tooth chain
  • Ladder chain
  • Tools for chain drives
  • Gears and gearboxes:
    • Gear Pitch and calculations, pitch line, circular pitch, diametral pitch, gear ratio
    • Bevel gears, miter gears, helical gears, herringbone gears, worm gears
  • Speed calculations for chain and belt drives
  • Magnetic couplings for drives
  • Drive couplings including flanged, ribbed, sleeve, and universal solid couplings; rigid jaw, square faced jaw, flexible jaw, spider, modified flange, molded rubber and chain type couplings
  • End drive conveyers, center drive conveyors
  • Types of conveyor belts including fabric carcass, chevron, high chevron, and chain link
  • Troubleshooting techniques and vibration analysis including laser analysis
  • Lubrication strategies for gears and gearboxes
  • Drive motor types,  power supplies, and control strategies.
  • Schematics and drawings
  • Maintaining accurate maintenance records and logs