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Chapter 1: Stress
M1.9: Shear Key and Gear
Gear With Notch
State the Problem
Table of Contents
Slot Milled in Shaft
Shear Key Dimensions
Key Inserted in Slot
Gear With Notch
Gear Slipped Over Key
Force Applied to Gear
Increase Force On Gear
Break the Shear Key
Shear Key Failure Surface
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The figure shows a gear wheel with a notch whose dimensions match that of the shear key which is inserted into a slot that is cut onto the shaft.
The gear is made with a notch that is the same width as the shear key.
