Article provided by: Standard Axle
Drum brakes were the number one braking system for at least half a century after the first installation on Maybach cars. While modern vehicles use a different form of braking, drums retain a vital role in today’s society. Drum brakes remain common and essential for rear braking systems and heavy trucks of more than 2000kg.
Drum brakes use friction from the set of pads and shoes to press against a rotating cylinder – the brake drum. The brake requires adjustment after every 30,000km to maintain the braking performance. The brake system is preferable for fragile transport systems, animal trailers, and horse floats. They
Components of drum brakes systems
- Backplates – It is the non-rotating plate on the axle sleeve that provides a stable and durable base for the hardware and components.
- Wheel cylinder – The cylinder structure has pistons that apply pressure on the brake shoes
- Brake shoes – These crescent-shaped steel pieces have high friction materials like brass, lead, zinc, aluminum, and graphite
- Brake drum – These components have an attachment to the axle and wheel
- Lining – This component is the most useable part of the system. It has a hard material that rubs against the rub and attaches to the brake shoe with rivets.
- Retracting spring – The spring retracts the shoe to the original position to prevent contact between the lining and the drum
- Expander – The mechanism slides the brake shoe towards the brake drum and exerts a force that presses the shoe towards the drum
Why are drum brakes in modern cars?
Drum brakes have an all-encompassing design that makes the maintenance process affordable and straightforward. You can easily replace the shoes with a brake tool by prying the entire system apart. The whole process is executable in ten minutes and requires minimal expenses, necessary labor skills, and time.
Some manufacturers use brake drums because they are easy to produce, whereas manufacturing discs requires the procession of a separate brake for parking duty. The production has minimal fees and therefore incurs low buying costs.
Brake drums are useable with disc brakes. You can control the expenses of the vehicle by installing drum brakes on the rear wheels and changing the front ones to your preferred braking system.
Drums are arguably safer than discs because they have superior heat capacity. They are the norm in modern cars because they get less stress during high-performance activities. Drums weigh less than discs and therefore exert less pressure on the car’s functionality.
Drum brakes are better for parking because of the wedging action against the drum. Trying to rotate the wheel causes a harder grip on the brake.
What is the cost of replacing a trailer brake drum?
The eventual cost depends on the type of vehicle. The average price is between $330 and $500. Labor costs are between $170 and $230, while parts will not cost more than $280.
Standard Axle can reduce the cost with affordable and high-quality brake drum parts. You can fix your car at a lower price when you purchase any of our parts for all sorts of braking problems or abnormal sounds.