The display in this window depends upon the option selected in the Method of Strength Calculation selection list in the Calculation tab. You must have the ANSI/AGMA 2001-D04:2005 selected.
See Engineer's Handbook for calculation formulas on factors.
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Access: |
Ribbon: Design tab  Power Transmission panel Bevel Gear  and on the Calculation tab, click Factors. |
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OK |
Click to confirm the selection and close the dialog box. |
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Cancel |
Closes the dialog box. |
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User Factors |
Check the box to enter values manually. |
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Common Factors |
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Overload Factor K o |
Overload Factor is intended to account for an occasional load of the nominal design load W t . It can be established from experience with the particular application. Otherwise use K o = 1. Click Factors... on the context menu to open Overload Factor dialog box where you can select the value. |
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Dynamic Factor K v |
Dynamic Factor takes into account load increments due to internal dynamic effects. |
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Size Factor K s |
Size Factor reflects non-uniformity of material properties. It depends primarily on tooth size and gear size. |
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Reliability Factor K R |
Reliability Factor accounts for the effect of the normal statistical distribution of failures found in materials testing. |
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Temperature Factor K T |
Temperature Factor takes into account effect of temperature on oil film and material properties. |
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Load Distribution Factor K m |
Load Distribution Factor account influence of non-uniform distribution of the load along the lines of contact. |
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Lead Correction Factor C mc |
Lead Correction Factor accounts influence of lead modification by crowning or lead correction. |
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Mesh Alignment Correction Factor C e |
Mesh Alignment Correction Factor takes into account manufacturing or assembly techniques improvements. |
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Pinion Proportion Modifier C pm |
Pinion Proportion Modifier takes into account influence of shaft deflections and bearing clearances. |
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Mesh Alignment Factor C ma |
Mesh Alignment Factor accounts for the misalignment of the axes of rotation from all causes other than elastic deformations. |
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Factors for Contact |
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Enters the values of contact factors. Click the arrows next to the edit fields to display tables for value selection. |
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Surface Condition Factor C f |
Surface Condition Factor takes into account influence of surface finish and plasticity effects. |
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Stress Cycle Factor Z N |
Stress Cycle Factor accounts for higher load capacity for a limited number of load cycles. |
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Hardness Ratio Factor C H |
Hardness Ratio Factor takes into account influence of gear ratio, surface finish and hardness of pinion and gear. |
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Geometry Factor I |
Geometry Factor relates to the shape of the tooth at the point of contact, the most heavily loaded point. |
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Factors for Bending |
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Enters the values of bending factors. Click the arrows next to the edit fields to display tables for value selection. |
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Reverse Loading Factor Y a |
Reverse Loading Factor accounts for the influence of reversible load of teeth. |
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Rim Thickness Factor K B |
Rim Thickness Factor takes into account influence of rim thickness that is not sufficient to provide full support for the root tooth. |
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Stress Cycle Factor Y N |
Stress Cycle Factor accounts for higher load capacity for a limited number of load cycles. |
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Geometry Factor J |
Geometry Factor relates to the shape of the tooth at the point of contact, the most heavily loaded point. |