Product Development Procedure Activities. 1  Product/ Process Initiation. 2  Determining Requirements and Objectives. 3  Meeting Requirements and Objectives. 4  Design Acceptance. 5  Design Validation and Testing.
An idler gear is a gear wheel that is inserted between two or more other gear wheels. The purpose of an idler gear can be two-fold.Firstly, the idler gear will change the direction of rotation of the output shaft.n idler-wheel drive is a system used to transmit the rotation of the main shaft of a motor to another rotating device, for example the platter of a record-reproducing turntable or the crankshaft-to-camshaft gear train of an automobile.
Other Uses for Gears. There are many other ways to use gears. For example, you can use conical gears to bend the axis of rotation in a gear train by 90 degrees. The most common place to find conical gears like this is in the differential of a rear-wheel-drive car. A differential bends the rotation of the engine 90 degrees to drive the rear wheels: Another specialized gear train is called a planetary gear train.