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.
In order to change the direction of the rotating shaft to match the direction that one wants the wheels to turn, a ring and pinion gear are used. The pinion gear is attached to the end of the drive shaft as it enters the differential case.As it turns, its gears cause the ring (crown wheel) gear to rotate. Since their shafts are mounted at a 90-degree angle to each other, this gear set transforms longitudal rotation to transverse rotation.hen the vehicle is travelling straight, power is transmitted from the pinion gear to the ring (crown) gear which is attached to the differential case. The differential case rotates together with the ring gear, causing the spider or planet pinion gears to rotate with it.