Gears and equipment racks use rotation to transmit torque, alter speeds, and modify directions. Gears can be found in many different forms. Spur gears are basic, straight-toothed gears that run parallel to the axis of rotation. Helical gears have got angled teeth that steadily engage matching the teeth for smooth, quiet procedure. Bevel and miter gears are conical gears that operate at the right position and transfer motion between perpendicular shafts. Modify gears maintain a specific input speed and enable different output speeds. Gears are often paired with equipment racks, which are linear, toothed bars found in rack and pinion systems. The apparatus rotates to operate a vehicle the rack’s linear motion. Gear racks provide more feedback than other steering mechanisms.