Helical Gears-Parallel

Click the figure above to activate the associated video simulation file.

vN4D File

Software copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved.

Info

The teeth of a helical gear are at a helix angle with respect to the axis of the gear. The axes of two meshed helical gears are parallel when these two gears have opposite hands. The yellow gear has the left hand helix, and the green gear has the right hand helix. 

Helical gears are quieter than spur gears in operation because of the gradual contact as the teeth come into mesh.

Source

This Working Model file is adapted from Figure 9.16 on p.477 in Design of Machinery, 3rd ed. by Norton, R. L., McGraw-Hill, 2004.

Credits

This Working Model file was first developed by Jie (Jeff) Yang.