Trailer Axle Hub Assembly Disc Brake 13" Wheel Hub Disc Brake For Trailer Axle
How do brakes work?
The driver presses on the brake pedal, the surge of you stopping actuates the piston in the master cylinder (MC). If you have electric/hydraulic actuator the electric signal ramps up the motor and builds pressure. The piston in the master cylinder displaces the hydraulic fluid in the brake lines. Because the system is sealed, the displacement (movement) of the hydraulic fluid moves the piston(s) in the brake calipers. The moving calipers bring the brake pads into contact with the rotor. At this point, because there is no more movement possible in the system, pressure begins to build, and the pads are pressed harder and harder against the rotor, creating friction, and stopping the trailer.
In summary, in order to stop the trailer, the brakes must have three properties. They must:
- Be able to apply a force to the rotor to decelerate the wheel’s rotation so that friction is increased between tires and road and the trailer slows/stops: this ability is described as the brake system’s BRAKE TORQUE.
- Be able to create enough friction between the pad and rotors to convert the trailer’s kinetic energy to heat; this is called CLAMPING FORCE; and be large and heavy enough (the rotors) to absorb that heat without damage; this is called THERMAL CAPACITY.
8 | Products NO. | Part No. | Description |
AC05400000 | AC04900300 | Brake caliper |
AC05400201 | 13" hub disc 8*6.5" PCD 1/2" stud |
AC04900101 | 5 bolt mounting bracket |

1. who are we?
We are based in Shandong, China, start from 2006,sell to North America(55.00%),Domestic Market(29.00%),Oceania(10.00%),Western Europe(3.00%),Africa(00.00%),Mid East(00.00%),Eastern Asia(00.00%). There are total about 301-500 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Brake Assembly and Parts/Axle Assembly and Parts/Brake Shoe/Brake Lining
4. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD,JPY;
Accepted Payment Type: T/T,L/C,PayPal;
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