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catia Helical gear design with formula explanation,How to make helical gear in catia with parameters - YouTube
![Boston Gear H1224R Plain Helical Gear, 45 Degree Helix, 14.5 Degree Pressure Angle, 0.625 Bore, 12 Pitch, 24 Teeth, Steel, RH: Amazon.com: Industrial & Scientific Boston Gear H1224R Plain Helical Gear, 45 Degree Helix, 14.5 Degree Pressure Angle, 0.625 Bore, 12 Pitch, 24 Teeth, Steel, RH: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61Wfx0W02dL.jpg)
Boston Gear H1224R Plain Helical Gear, 45 Degree Helix, 14.5 Degree Pressure Angle, 0.625 Bore, 12 Pitch, 24 Teeth, Steel, RH: Amazon.com: Industrial & Scientific
![Boston Gear H810L Plain Helical Gear, 45 Degree Helix, 14.5 Degree Pressure Angle, 0.625 Bore, 8 Pitch, 10 Teeth, Steel, LH: Amazon.com: Industrial & Scientific Boston Gear H810L Plain Helical Gear, 45 Degree Helix, 14.5 Degree Pressure Angle, 0.625 Bore, 8 Pitch, 10 Teeth, Steel, LH: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51NKb1alnmL.jpg)