Gears

Spur gears

Mode

Tool

Tool set

Modes for The Symbol Insertion tool

Spur Gear

Hub

Machine Components

Multiple spur gear, spur gear rack, and hub tools share the same position on the tool set. Click and hold the mouse on the visible tool to open the Pop-out tools list and select the desired tool.

To insert a spur gear:

Click the tool and mode.

Click to place the object, and click again to set the rotation. The first time you use the tool in a file, a properties dialog box opens. Set the default parameters. The parameters can be edited later from the Object Info palette.

If you inserted a 3D spur gear, click the Hub - 3D tool from the Machine Components tool set to insert a 3D hub. Place the hub in the drawing and set the default properties, if prompted.

Parameter

Description

Pitch Diameter

Specify the pitch diameter

Number of Teeth

Enter the number of teeth

Pressure Angle

Enter the pressure angle

pressure_angle.png 

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

Gear_SpTeeth.png 

Face Width

Enter the width of the gear face

Helix Angle

(3D only)

Indicate the 3D spur gear helix angle

Hole Diameter

(3D 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

Draw Recess

(2D only)

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

Enter the recess corner radius

Recess Fillet Radius

Enter the recess fillet radius

Draw Hub

(2D only)

Draws a hub

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

(2D only)

Draws a bore

Bore Diameter

Enter the bore diameter

Keyway

If a keyway is present, select the square, rectangular, or custom size; 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

(2D only)

Select the web configuration and then specify the 2D parameters, if any. When Holes is selected, hole size can be specified as a percentage or diameter value.

Gear_SpWeb.png 

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

(2D only)

Select the 2D view

Gear_SpViews.png 

Show Center Lines

(2D only)

Draws the 2D gear with center lines

Spur gear racks

Bevel gears

Worm gear sets

 

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