FCGear TimingGear

Description
The purpose of timing gears is to allow the camshaft and crankshaft to turn the timing chain. The crankshaft turns to move pistons up and down inside the cylinders. The camshaft turns to allow intake and exhaust valves on the cylinders to open and close. These components are important for proper engine timing.

Timing gears are connected to a timing belt or timing chain.



Usage

 * 1) Switch to the [[Image:FCGear_workbench_icon.svg|16px]] FCGear Workbench.
 * 2) There are several ways to invoke the command:
 * 3) * Press the button in the toolbar.
 * 4) * Select the option from the menu.
 * 5) Change the gear parameter to the required conditions (see Properties).

Properties
An FCGear TimingGear object is derived from a Part Feature object and inherits all its properties. It also has the following additional properties:

Data

 * : Default is 5,00 mm. Value of the gear width.
 * : Default is 20. Number of teeth.
 * : Default is gt2. Type of timing gear – profile pitch for timing belts (see Notes).


 * : (read-only) Radial height of teeth.
 * : (read-only) X-Offset of second arc mid-point.
 * : (read-only) Pitch of gear.
 * : (read-only) Radius of first arc.
 * : (read-only) Radius of second arc.
 * : (read-only) Radius of third arc.
 * : (read-only) Radial difference between pitch … diameter and head of gear.



Useful formulas

 * = + 2 *
 * = 2 * +  : 2 *  +  : 4 * pi² *  *
 * = : 4 -  : 8 *  + ¼ * sqrt [ - ½ *  *  - 2 *  *  : pi²]