'Recognizing the need is the primary condition for design.'
Milton Glaser
Steering 1 - Rack and Pinion gears
The rack is the flat toothed gear that runs left to right.
The pinion is the small gear that is attached to the end of the streering rod.
When the teeth of the pinion gear meshes into the teeth on the rack as it moves it makes the streering rack move left or right which then moves the wheels of the vehicle.
See below for diagrams of the whole steering system and a 3D detail model of the rack and pinion gearing mechanisim.
Task 1: Use the attached worksheet to complete the tasks below
Using a ruler, paper, pencil and your best drawing skills take some time to draw and label the components found in the rack and pinion system.
Easy: Using the attached diagram label each part of the system
Medium : Draw out the system diagram in 2D as above and then label it
Hard: Use your 3D drawing skills to draw out the close up view of the rack and pinion
Download this - Rack and pinion worksheet 1 (non - powered)
rack-and-pinion non powered.jpg
JPG image [374.4 KB]
Task 2:
1: Watch the video above and make a note of anything that you are unsure about still.
2: Discuss any points you are unsure about with your collegues and tutor until you are able to explain the rack and pinion system clearly to a collegue.
3: Write a 2 or 3 sentence explanation of how a rack and pinion system works
Keywords: Rack, Pinion, gear, teeth,
Steering 2 - Rack and Pinion hydrolics
Task 3:
Using a ruler, paper, pencil and your best drawing skills take some time to draw and label the components found in the hydrolic rack and pinion system.
Easy: Using the attached diagram label each part of the system
Medium : Draw out the system diagram in 2D as above and then label it
Hard: Draw out, label and then explain the differences between the un powered and powered steering systems
Rack and pinion worksheet 2 (Powered)
rack-and-pinion powered.jpg
JPG image [621.9 KB]
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