What is balance bar in brakes?
A balance bar (also called a bias bar) on dual master cylinder systems, divides the force from the brake pedal to the two master cylinders. It is called a “balance bar” because that is exactly what it does. The torque on one side of the bar must balance the torque on the other side of the bar.
How do brake balance bars work?
A brake balance bar works by connecting the brake pedal to the two master cylinder pushrods by a bar that pivots in the middle. Moving the pivot point closer to one side will increase the pressure on that master cylinder, moving the bias toward that end of the car.
When should I adjust my brake balance?
The goal is to adjust the proportion of the braking forces between front and rear (brake bias) in order to maximize overall braking efficiency. If the brakes are still applied as the car turns into the corner, the brake‐bias setting will also have an effect on the car’s turn‐in balance.
What is the function of Balance Bar?
The function of a balance bar is to allow the adjustment of brake line pressure distribution between two master cylinders. This is accomplished through moving the balance bar pivot towards one master cylinder centerline or the other.
What causes a brake imbalance?
What causes a brake imbalance? A brake imbalance can be caused by several different problems in your braking system. These include uneven brake pad / shoe wear, worn discs / drums, a damaged piston or damage to the brake caliper.
What is pedal ratio?
The pedal ratio is simply the distance from the center of the pedal pivot point to the middle of the footpad (A), divided by the distance from the pedal pivot to the master cylinder pushrod (or the hole it attaches to) (B).
What is the braking ratio on a car?
Braking ratio is defined as the ratio of braking force against a car’s wheels to the car’s weight (Ref. The empty braking ratio is defined as the braking force divided by the car’s light weight.
What does brake bias do?
Brake bias helps the driver maintain control while braking. When braking, weight transfers from the rear to the front. This increases traction in the front and reduces it in the rear. If the brakes had a 50/50 balance, the rear wheels would lock up first.
What could be a symptom of braking imbalance?
Symptoms change in severity depending on how imbalanced your brakes are. However, the main symptom of a brake imbalance is your car pulling to one side while you are braking. In more severe cases, this can cause you to lose control of your car, especially while braking at high speeds.
What does rear brake imbalance mean?
What does this mean? Brake imbalance is caused because one side of the braking pair (front or back axle) is not applying as much power as the other side. What’s wrong with my brakes? There are too many answers for this forum. It could be any number of things like a sticking caliper, or a worn pad, or air in the lines.
What is a balance bar on a car?
The balance bar is an adjustable lever (usually a threaded rod), that pivots on a spherical bearing and uses two separate master cylinders for the front and rear brakes. Most balance bars are part of a pedal assembly that also provides a mounting for the master cylinders.
What happens when the balance bar is centered on a master cylinder?
When the balance bar is centered, it pushes equally on both master cylinders creating equal pressure, given that the master cylinders are the same size bore. When adjusted as far as possible toward one master cylinder it will push approximately twice as hard on that cylinder as the other. Figure 2. Balance bar lever adjustment
How do you set up a balance bar?
To set up the balance bar, thread the master cylinder pushrods through their respective clevises to obtain the desired position. Threading one pushrod into its respective clevis means threading the other one out the same amount.
Why was the CNC brake caliper so important?
The off road market needed a caliper that would withstand the punishment of a single off road race. CNC designed the CNC brake caliper that would lasted for the entire racing season. This principal of producing products to exceed customer’s needs has continued throughout CNC’s history.