Power Trains (witch correct answers)

The purpose of a power train correct answers -to connect and disconnect power -to modify speed and torque -to provide a means of reverse - to equalize power distribution to the drive wheels The main components of a power train correct answers Clutch, transmission, Differential, Final drive, Axle methods of power transfer correct answers Friction(clutch), Gears(transmission,differential), and fluids( water wheel principle) Most common gear types correct answers - straight spur - helical spur - planetary - spiral bevel A planetary carrier correct answers Will always follow its input If a carrier is driving correct answers overdrive results If carrier is output correct answers underdrive results If carrier is held correct answers reverse results If any two components are driven at the same speed and direction correct answers Direct drive results To get output there has to be? correct answers input and a held component An internal(ring) and external(planet) in mesh correct answers rotate in the same direction Two external rings in mesh(sun and planet) correct answers rotate in opposite directions Purpose of bearings correct answers reduce friction, support rotating shafts Types of bearings correct answers roller, ball, and needle Load types correct answers Torsional, radial, thrust (axial) Backlash, endplay and preload correct answers gear train adjustments Backlash correct answers clearance or play between gears in mesh Endplay correct answers end to end movement in a gear or shaft due to bearing clearence