Gears

Spur Gears

Click the spur gear point object from the appropriate tool set to insert a spur gear.

 

Product	Tool Set
Machine Design	Machine Components
Spotlight	Hardware

Spotlight contains only the 2D spur gear object.

 

 

Parameter	Description
Pitch Diameter	Specify the pitch diameter
Number of Teeth	Enter the number of teeth
Pressure Angle	Enter the pressure angle
Diametrical Pitch (Ref.)	Displays the diametrical pitch (for reference only)
Module (mm) (Ref.)	Displays the module (for reference only)
Outside Dia. (Ref.)	Displays the outside diameter (for reference only)
Root Dia. (Ref.)	Displays the root diameter (for reference only)
Tooth Profile	Select the type of tooth profile
Face Width	Enter the width of the gear face
Draw Recess	To draw a recessed web, select Draw Recess and specify the 2D parameters
Web Thickness	Enter the web thickness
Recess Diameter	Enter the recess diameter
Recess Corner Radius	Specify the recess corner radius
Recess Fillet Radius	Indicate the recess fillet radius
Draw Hub	Select to include a hub and then specify the 2D parameters
Hub Diameter	Enter the hub diameter
Hub Projection (Left / Right)	Specify the amount of projection for the hub on both the left and the right; a negative value indicates that the hub face is recessed
Hub Corner Radius	Enter the hub corner radius
Hub Fillet Radius	Enter the hub fillet radius
Draw Bore	Select to draw a bore and then specify the 2D parameters
Bore Diameter	Enter the bore diameter
Keyway	If a keyway is present, select the square, rectangular, or custom size; otherwise, select None; the square and rectangular selections apply the ASME-recommended size based on the bore diameter
Width/Height	For custom keyway sizes, enter the width and height values of the keyway
Web Configuration	Select the web configuration and then specify the 2D parameters, if any. When Holes are selected, their size can be specified as a percentage or diameter value.
Number	Indicate the number of holes or spokes for the gear (does not apply to Plain web configurations)
Size (10 - 100%)	For Holes (Percent) and Spokes web configurations, enter the percentage of the recess opening occupied by the holes or spokes
Center Distance	When Holes is selected for the web configuration, specify the distance between the hole centers
Hole Diameter	When Holes is selected for the web configuration, indicate the size of the holes
View	Select the 2D view
Draw Center Lines	Select to draw the 2D gear with center lines
Helix Angle (Machine Design only)	Indicate the 3D spur gear helix angle
Hole Diameter (Machine Design only)	Indicate the hole diameter for the 3D spur gear; when including a hub 3D object in the drawing, adjust the spur gear hole diameter and hub outside diameter to fit together