HT250 Floating 4 Pot Brake Kit Rear Aluminum Bracket 330X28mm 20in Wheel

Product Description

Floating Rear Brake System Kit GT4 330X28 Mm Disc Caliper Bracket

 

 

Brakes for Automobiles

Opposed Piston Type Disc Brakes
This thermal energy generates heat, but since the main components are exposed to the atmosphere, this heat can be diffused efficiently. This heat-dissipating property reduces brake fade, which is the phenomenon where braking performance is influenced by the heat. Another advantage of disc brakes is its resistance to water fade, which occurs when the water on the brakes significantly reduces braking force. When the vehicle is in motion, the rotor spins at high speeds and this rotational motion discharges the water from the rotors themselves, resulting in stable braking force.

 

 

Getting to Know Braks｜Products and Technologies

 

Disc brakes are generally used in passenger cars, but due to their stable performance at higher speeds and resistance to brake fade, they are gradually spreading into the commercial vehicle segment, where drum brakes were traditionally chosen for their longer service life. There is increasing demand from customers for longer service life and higher quality, and Akebono is committed to meeting them through further development of the disc brake’s reliability. There are two types of disc brakes.

The "opposed piston type disc brake" has pistons on both sides of the disc rotor, while the "floating type disc brake" has a piston on only one side. Floating caliper type disc brakes are also called sliding pin type disc brakes.

 

 

Disc brake construction

The brake rotor (disc) which rotates with the wheel, is clamped by brake pads (friction material) fitted to the caliper from both sides with pressure from the piston(s) (pressure mechanism) and decelerates the disc rotation, thereby slowing down and stopping the vehicle.

 

How disc brakes work

When the driver steps on the brake pedal, the power is amplified by the brake booster (servo system) and changed into a hydraulic pressure (oil-pressure) by the master cylinder. The pressure reaches the brakes on the wheels via tubing filled with brake oil (brake fluid). The delivered pressure pushes the pistons on the brakes of the four wheels. The pistons in turn press the brake pads, which are friction material, against the brake rotors which rotate with the wheels. The pads clamp on the rotors from both sides and decelerate the wheels, thereby slowing down and stopping the vehicle.

 

Main components of disc brakes
Main components of floating type disc brakes
There are two types of disc brakes. One is called the "opposed piston type disc brake" which has pistons on both sides of the disc rotor, and the other is the "floating type disc brake" which has a piston on only one side. The floating type disc brakes are also called the sliding pin type disc brakes.

function of brake disc
The brake rotor (disc) which rotates with the wheel, is clamped by brake pads (friction material) fitted to the caliper from both sides with pressure from the piston(s) (pressure mechanism) and decelerates the disc rotation, thereby slowing down and stopping the vehicle.

 

Feature:

 

Disc size/mm :330*28,355*28,362*28,380*28
Fit front or rear wheel Size:17in,18in,19in,20in
Function:50% Improve Brake Performance

 

Caliper:

 

Material:One-piece Forged Body
Craft: Aerial 6082 Aluminum Alloy
Piston: 4 big pistons,Made of Aluminum Alloy
Finish Treatment:High-temperature Baking Coating

 

Brake pad:

Material: Ceramic graphite
Heat-resistant: 0-500 ℃
Friction Coefficient: 0.49

 

Rotor (disc+center bell):

Craft: By Forging
Plane Bounce: <0.03mm
Material:
1.Disc:High Carbon Iron HT250
2.Center bell : Aerial 6061 Aluminum Alloy

 

Bracket:

Material: Aerial 6061 Aluminum Alloy
Craft: By Forging

Brake hose:
Material: Inside special rubber; Outside wrapped with steel cover knitted by steel wires

 

Brake line

 

Material: Inside special rubber; Outside wrapped with steel cover knitted by steel wires

 

Product introduction

 

tem name	4 piston brake caliper
Material	Aluminium alloy
Position	Front  axle, Dia of wheel above 18''
Application	Brake rotor disc 330X28,355x28,360x28,380x28
Colour	Red, Black ,yellow
Guarantee	12 months warranty

 

 

 

How to install the brake Kit

 

Step 1: clean the bearing. After removing the original brake system, clean the bearing part with a steel brush, remove the rust on it, and measure whether the bearing plane is deformed to ensure that the upgraded brake disc fits closely on the bearing.

 

Step 2: apply sound insulation adhesive to the bearing. Thin application of sound insulation glue on the bearing plane of the original factory can not only prevent the bearing from rusting, but also make the contact between the bearing and the brake disc closer.

 

Step 3: fix the brake disc. Place the brake disc on the bearing, but note that the screws in this part don't have to be tightened in a hurry. At this step, just fix it.

 

Step 4: install the axle code and caliper. After the brake disc is fixed, fix the bridge code on the sheep horn, and then fix the caliper on the bridge code to ensure the correct installation position of the bridge code, the correct installation direction of the bridge code and the correct installation direction of the caliper. This step is the same. There is no need to tighten the screws in a hurry, just fix them in a fixed position.

 

Step 5: accurate measurement of caliper position. In fact, this step is often the most easily overlooked, but it is also the most important step in the whole installation process. In the future use of many modified calipers, the uneven strength of left and right calipers, inconsistent wear of brake pads, and even brake jitter are related to this step. This step is to use an accurate vernier caliper to measure whether the caliper and the brake disc are accurately symmetrical up, down, left and right. On the premise of ensuring accuracy, the force pushed out by the piston can be evenly dispersed on the back of the brake pad, completely avoiding the problem of uneven left and right force, resulting in the failure of the caliper to work completely.

 

Step 6: tighten the screws correctly. After confirming the position of the caliper, the fixed screws need to be coated with screw glue. According to the requirements of the caliper manufacturer, use the correct torque wrench to fix the caliper screws. This is very important. Do not use an air cannon.

 

Step 7: install the brake pad + fixed pressing plate. The brake pads of different calipers are installed in different ways, so this step can also be advanced before the calipers are fixed. The more important thing here is to apply sound insulation glue, which can not only make the brake pads work more smoothly, but also reduce the probability of abnormal noise of the brake pads as far as possible. After installing the brake pad, the spring pressing plate at the top shall also be installed.

 

Step 8: installation of steel throat oil pipe. For refitting brakes, the importance of steel throat need not be said. It should be noted here that the steel throat with appropriate length shall be selected according to different models, and the steel throat with correct interface shall be matched according to the model of caliper.

 

Step 9: exhaust air from brake oil. This part is very important for the braking system. If the braking system contains air, it will lead to insufficient braking force at light level and loss of braking by directly depressing the pedal at heavy level. Here, I personally suggest using the special equipment for brake oil replacement to directly replace all brake oil. If the brake oil is very new, use the brake oil of the same brand and model to drain the pedal and replenish the oil.

 

Step 10: check oil leakage + confirm interference. After the air exhaust operation of brake oil, after a simple test run, stand for 30 minutes, and check whether there is oil leakage at the interface of brake oil pipe again. Once it is found, it must be handled immediately and the air exhaust operation must be carried out again. In addition, after lifting the car, turn the wheels left and right respectively, and observe whether there is any movement interference between brake calipers, bridge codes, screws, oil pipes and other parts, so as to ensure that there is no friction between these key parts and any parts of the body, and the oil pipes are not pulled. Only in this way can we ensure driving safety in the future.

 

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