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Spur and Helical Gear Horsepower Calculator

Horsepower & Torque

For spur and helical gears. Change any value, then click Get Horsepower.

Gear specs

You can enter your own ultimate tensile strength (safe stress can be taken as 1/3 of the ultimate strength). See these sites for ultimate strength values: matmatch.com matweb.com

Results

*Special considerations need to be taken if the pitch line velocity exceeds 1200 FPM for metallic spur gears, or 2400 FPM for helical gears or nonmetallic spur gears.

Information on this page is to be used as a guide. Consult an engineer for more information.