jackboot
Mechanical
- Jun 27, 2001
- 151
Please educate me on this subject:
Gear calculations typically use only allowable stress and hardness to calculate power ratings and gear life. These values are listed by the AGMA number like A1 or A5.
Designing a set of gears I only have mechanical information for a specific type of Alloy- tensile and yield strengths.
SO:
What is the allowable stress? -I know this is listed by AGMA and modified by operating factors, but how is it calculated to start with? I only have tensile and yield strength to start with for the particular alloy I have selected.
Is the allowable stress the same as the endurance limit (fatigue strength) of the particular alloy?
Is there a cross-reference for the AGMA numbering system to AISI?
Anyone know?
jackboot
Gear calculations typically use only allowable stress and hardness to calculate power ratings and gear life. These values are listed by the AGMA number like A1 or A5.
Designing a set of gears I only have mechanical information for a specific type of Alloy- tensile and yield strengths.
SO:
What is the allowable stress? -I know this is listed by AGMA and modified by operating factors, but how is it calculated to start with? I only have tensile and yield strength to start with for the particular alloy I have selected.
Is the allowable stress the same as the endurance limit (fatigue strength) of the particular alloy?
Is there a cross-reference for the AGMA numbering system to AISI?
Anyone know?
jackboot