Back to Home Page of CD3WD Project or Back to list of CD3WD Publications

		Wind Systems for Pumping Water: A Training Manual (Peace Corps, 1984, 93 p.)
			(introduction...)
			Acknowledgments
			Introduction to training
			Training guidelines
			Objectives for wind system construction training
			Session 1 Introduction and objectives
			Session 2 History of wind systems
			Session 3 Large projects and community analysis
			Session 4 Shop safety and tool care
			Session 5 Representative drawings for construction
			Session 6 Shafts and bearings
			Session 7 Strengths and testing
			Session 8 Joinery
			Session 9 Pumps and pump design
			Session 10 Siting considerations
			Session 11 Sizing wind water pumping systems
			Session 12 Design considerations for pumps and windmills
			Session 13 How to design
			Session 14 Presentation of designs
			Session 15 Construction of wind measuring poles
			Session 16 Exportation for wind sites
			Session 17 Tower raising
			Session 18 Plumbing the wind system
			Session 19 Testing installed wind system
			Session 20 Presentation of projects
			Session 21 Maintenance - preventive and routine
			Bibliography
			Construction materials list
			Tool list for 24 participants
			Technical vocabulary
			Report on the wind-powered in-service training
			Recommendations

Session 6 Shafts and bearings

TOTAL TIME: 1 to 2 Hours

OBJECTIVES: To begin learning about how power is transmitted by shaft and bearing mechanisms.

To work with the models of shaft and bearing systems.

MATERIALS: Model materials & supplies, wood, wire, glue, pins, construction paper, etc.

Shaft and bearing materials or examples (rear auto axle or similar parts).

PROCEDURES:

Step 1: 10 minutes

Discuss the different materials used for bearings and pass around examples of bearings.

Step 2: 10 minutes

Discuss the type of bearings to be used in the mill being built during the training program.

Trainer Note

Oil soaked or greased wood bearings make excellent low-cost bearings. If they are to be used, discuss their maintenance needs and their limitations.

Step 3: 40 minutes

Construct and work with models, making various shaft and bearing combinations.

Trainer Note

For groups with very little experience with machinery and power, a model making kit consisting of 1 Erector Set, 1 Tinkertoy and 1 Lincoln Log, plus an assortment of small screws and bolts can be used. Encourage the use of models at all stages of the building process.