Figure 1 Worm Gear property page [Geometry Data page]
The Worm Gear property page is shown in Figure 1. The parameters are explained below.
•Module: Enters the module of the gear.
•Number of Teeth: Enters the number of teeth. The maximum number of teeth of gear is 400.
•Lead Angle: Enters the lead angle of worm gear. This can define a pitch diameter. For more information, click here.
•Diameter Factor: Enter the factor for Pitch Diameter. This can define a pitch diameter and lead angle. For more information, click here.
•Bore Diameter: Enters the bore diameter of worm gear.
•Hub Diameter: Enters the hub diameter of worm gear.
•Face Width: Enters the face width of worm gear.
•Outside Diameter: Enters the outside diameter of worm gear.
•Hub Width: Enters the hub width of worm gear.
•Hand of Thread: Defines the direction of thread as L or R.
•Mounting Distance: Shows the mounting distance of worm gear.
•Pressure Angle: Enters the pressure angle of the gear.
•Parameter Type: two methods are supported to define the Addendum and Dedendum.
•Factor: Defines the addendum and dedendum as factors. For more information, click here.
o Addendum Factor: Enters the factor to define the addendum.
o Dedendum Factor: Enters the factor to define the dedendum.
•Addendum Radius & Whole Depth: Defines the addendum and dedendum as addendum radius and whole depth. For more information, click here.
o Addendum Radius: Enters the addendum radius for the gear.
o Whole Depth: Enters the whole depth as summation for the addendum and dedendum.
•Adden. Mod. Coeff.: Enters the coefficient to define the addendum.
•Delta Tooth Thick.: Enters the delta value to define the tooth thickness. For more information, click here.
•Hob Rack Radius Coef.: Enters the coefficient to define the hob rack radius. The default value is 0.38 (ISO 53, JIS Standard) and this should be equal or larger than 0. For more information, click here.
•Information: Shows the calculated values for Pitch Radius, Tip Radius, Base Radius, Root Radius, Circular Tooth Thickness, Throat Diameter, and Total Length.
Figure 2 Gear Information dialog box
•Draw: All data must be defined with respect to the tooth marker. You can move points graphically by using the mouse directly. Also, the tooth profile can be modified in Tooth Profile page.
Figure 3 Gear Tooth Profile Editor dialog box
•Generate optimal arc segment: In order to apply the modification of tooth, this button should be clicked.