Steering Gear
Steering gear is an indispensable part of the steering system which consists of a pinion (a circular gear) with a rack (a linear gear). It lies between the steering column and the steering linkages. It converts and multiplies rotational force from the steering wheel into lateral movement force required to move the steering linkage, which steers the vehicle. It also offers a gear reduction so turning the wheels is easier. It works by enclosing the rack and pinion gear in a metal tube, with each end of the rack protruding from the tube and connected to an axial rod. The pinion is attached to the steering shaft so that when you turn the steering wheel, the gear rotates and the rack moves.
Steering Pump
Steering pump is a centrifugal vane type hydraulic pump that pressurizes steering fluid through high speed rotations in order to create a pressure differential that translates into “power assist” for your car’s steering system. It is metaphorically known as the “heart” of our power steering system, when the pump continues to rotate, the steering fluid are carried around the oval groove like a merry-go-round. Because of the eccentric oval shape, the steering fluid moves from a large area, and gets squeezed into an increasingly smaller space to increase pressure. Basically speaking, the steering rack is divided into two hydraulic chambers, the left and the right side. The high pressure steering fluid leaves the steering pump, and into the left and the right side of steering gear, this pushing motion right here is the power assist.
Control Arm
Control arm is part of the suspension system that helps your car remain in full contact with the road at all times, that’s giving you necessary control. In most control arms, the two lower parts of the “A”which is located at the top and bottom of the wheel spindle.The upper and lower control arms allow the front wheels to change direction. Also called a wishbone or A-arm. In the most basic of terms, the control arms allow up and down movement of the suspension while holding the knuckles, spindles, and axles firmly onto the car.
Shock Absorber
A shock absorber or damper is a mechanical or hydraulic device used to absorb and damp shock impulses. The shock absorbers dampen the movement of the springs by converting the spring’s kinetic energy into thermal (heat) energy), which is then dissipated. Most shock absorbers are some sort of oil-filled cylinders(resists motion by viscous friction). Shock absorbers not only control the movement of springs and suspension but also keep your tires in contact with the ground at all times. At rest or in motion, the bottom of your tires is the only part of your vehicle that comes into contact with the road. Any time that a tires contact with the ground is broken or reduced, your ability to drive, steer and brake is severely compromised. When your vehicle’s suspension moves, a piston moves up and down through the oil-filled cylinder.
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