Car Electric Steering Gear Power Steering Rack and Pinion
95B423055AF for AUDI Q5
Detailed Product Description
| Product Name: | Electric Steering Rack | Part Number: | EB5Z3504A |
| Application: | For Ford Explorer 2013-2015 | Product Range: | Electric Steering Gear |
| LHD /RHD: | LHD | Warranty: | 1 Year |
| MOQ: | 1 PC | Packing: | Neutral Box , 1 Pc In A Box |
| Delivery Time: | 3-10 Days After Receive The Payment | | |
Steering Rack / Rack and pinion steering
1. How does steering rack work
Rack and pinion steering uses a gear-set to convert the circular
motion of the steering wheel into the linear motion required to
turn the wheels. It also provides a gear reduction, so turning the
wheels is easier.
It works by enclosing the rack and pinion gear-set in a metal tube,
with each end of the rack sticking out from the tube and connected
to an axial rod. The pinion gear is attached to the steering shaft
so that when the steering wheel is turned, the gear spins, moving
the rack. The axial rod at each end of the rack connects to the tie
rod end, which is attached to the spindle.
Most cars need three to four complete turns of the steering wheel
to go from lock to lock (from far right to far left). The steering
ratio shows you how far to turn the steering wheel for the wheels
to turn a certain amount. A higher ratio means you need to turn the
steering wheel more to turn the wheels a certain amount and lower
ratios give the steering a quicker response.
Some cars use variable ratio steering. This rack and pinion
steering system uses a different number of teeth per cm (tooth
pitch) in the centre than at the ends. The result is the steering
is more sensitive when it is turned towards lock than when it is
close to its central position, making the car more maneuverable.
There are two main types of rack and pinion steering systems:
End take off – the tie rods are attached to the end of the steering
rack via the inner axial rods.
Centre take off – bolts attach the tie rods to the centre of the
steering rack.
2.How does steering rack work with power steering
When a rack and pinion system is connected to a power steering
system, the design changes slightly. A cylinder with a piston in
the middle is placed in the rack. There is fluid on both sides of
the piston. When pressure is placed on the fluid on one side of the
piston, it forces the piston to move, which turns the rack and
assists with steering.
3.Common steering rack problems
-1 .Very tight steering wheel
If it is becoming more difficult to turn your steering wheel, it’s
a sign that there’s probably a problem either with your steering
rack or a lack of pressure from the power steering unit. The
solution could be as simple as adding more power steering fluid,
but it’s best to get it checked.
-2.Leaking power steering fluid
Power steering fluid levels only decrease and result in tight
steering if there is a leak. This isn’t a big problem, however the
consequences for leaving it too long include causing the steering
gearbox and steering rack to overheat or gears to break. It is
recommended to get this fixed when it is a simple (and cheap) task.
Click here for more information about the causes of these leaks
-3.Grinding noise when steering
A grinding noise from your steering gearbox comes from
metal-on-metal contact, suggesting a lack of lubrication. You’ll be
able to hear it clearly when you turn either left or right. Ask
your mechanic to take a look at the problem, as your steering
gearbox could need replacing.
-4.Burning oil smell
Power steering fluid smells like burning oil, so if you smell it
when driving it’s a sign that the steering gearbox is too hot. It’s
best to stop your car as soon as possible and get the problem
looked at it. Driving with an overheated steering gearbox can
result in fire.
