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Automatic vehicles use pad kit disc brake brakes, which utilize friction to slow down and stop cars. The brake pads are placed on both sides of the brake rotors. When the brake pedal is pressed, the calipers push the pads against the rotor. This action generates friction between the pads and rotors, which slows down the vehicle's wheels. Disc brakes offer better performance, especially in emergency situations. There are several types of disc brakes:
Slotted disc brakes
These brakes have slots on the surface of the brake discs. The slots improve braking performance by releasing gases and dust that may interfere with the friction surface. Slotted disc brakes are mostly used in high-performance vehicles.
Drilled disc brakes
Just like slotted disc brakes, drilled disc brakes also have holes on the surface of the brake discs. The holes enhance braking performance by improving airflow. They also reduce the weight of the brake disc. Drilled disc brakes are commonly used in racing vehicles.
Composite disc brakes
These pad kit disc brakes combine two different materials to form the brake disc. For instance, the brake disc may have a steel center and a carbon-composite rim. This combination maximizes the benefits of each material to offer superior braking performance. Composite disc brakes are mostly found in high-end sports cars.
Ventilated disc brakes
These pad kit disc brakes have brake discs with an internal air channel. The channel allows airflow between the two disc surfaces. This design helps to cool the brake during operation. Compared to non-ventilated disc brakes, ventilated disc brakes reduce brake fade, improve braking performance, and are more durable. They are mostly used in modern vehicles.
Carbon ceramic disc brakes
These pad kit disc brakes have brake discs made from carbon and ceramic materials. The combination results in brake discs that have high friction and are heat-resistant. This offers superior braking performance, especially in high-speed situations. Carbon-ceramic disc brakes are commonly used in luxury and high-performance sports cars.
Electrically operated disc brakes
These disc brakes are controlled by electronic motors rather than the traditional brake pedal and hydraulic system. The electronic motors press the brake pads against the brake discs. Electrically operated disc brakes offer more precise control and better braking performance. They are increasingly being used in electric and hybrid vehicles.
Pad kit disc brake specifications include a braking system with high-quality materials that offer superior stopping power and a friction coefficient. The friction coefficient measures the ability of brake pads to resist wear and provide consistent performance. Brake pads have a friction coefficient of 0.35 to 0.45 for normal driving conditions. For high-performance vehicles, the friction coefficient is between 0.45 to 0.6.
Pad kit disc brakes have a noise level specification that measures the sound produced during braking. The noise level is measured in decibels (dB), with most pads producing 50 to 70 dB of noise. The warranty period of a pad kit disc brake is between 30,000 to 70,000 miles, depending on the material used to make the pads. Premium pads have a short break-in period, and they come with hardware kits.
Maintaining brake pads is vital for ensuring safety and optimal performance. Here are the dos and don'ts of maintaining brake pads:
Inspect brake pads regularly for signs of wear or damage. Replace brake pads when worn out to maintain optimal braking performance. Clean brake pads and the brake system regularly to remove dust, debris, and brake fluid. Maintain proper vehicle alignment and tire pressure to reduce even brake pad wear. Avoid overheating brake pads by practicing gradual deceleration, especially when driving downhill.
Don't use contaminated brake pads as they compromise the braking system. Don't ignore warning signs such as squeaking, grinding, or reduced braking performance. Don't mix different types of brake pads, as this leads to inconsistent braking performance and increased wear. Don't overload the vehicle, as this strains the brake system and leads to premature brake pad wear.
By following these maintenance tips, buyers can ensure their vehicles have optimal brake performance and safety.
Before sourcing brake pads, buyers need to have a clear understanding of their target market. Here are some factors to consider:
Vehicle type
Different vehicles use different types of brake pads. For example, trucks and buses require heavy-duty pads due to their weight and the distance they take to come to a stop. Source pads for commercial vehicles from suppliers catering to that specific market. On the other hand, luxury vehicles may come with OEM pads that are quiet and offer a smooth stopping experience.
Driving habits
Some customers may prefer brake pads that offer performance under extreme conditions such as racing. Other customers may not require such performance. Source performance pads separately from suppliers and manufacturers.
Eco-friendly options
Environmental regulations are becoming stricter by the day. Some countries have prohibited the use of asbestos in brake pads because it is harmful to the environment. Other materials such as copper and certain plastics are also coming under scrutiny. Consider sourcing organic pads that are made from environmentally friendly materials.
Price point
Budget is an important factor when it comes to brake pad kits. Wholesalers and retailers need to stock a variety of options to cater to different customers. Source premium products as well as affordable options for budget-conscious customers.
Brand reputation
To avoid customer complaints and returns, it is advisable to source products from suppliers with a good reputation. Apart from reading reviews on the suppliers' website, buyers can check third-party reviews. They can also get recommendations from business partners.
Warranty
Most suppliers offer a limited warranty on products. The terms of the warranty differ from supplier to supplier. Some may offer repair or replacement services for damaged goods. Others may only replace or refund in case of defective products. Ensure to understand the terms of the warranty and the supplier's return policy.
To make pad kit disc brake replacement easy, manufacturers provide detailed guides in the user manual. Here are some general steps and tips for replacing brake pads:
1. Safety First
Ensure the vehicle is parked on level ground. Engage the parking brake. Wear safety goggles and gloves. Set wheel chocks on the wheels that won't be worked on to avoid vehicle movement.
2. Gather Tools and Materials
Get the necessary tools, including a lug wrench, jack and jack stands, socket wrench, brake caliper tool or C-clamp, and bungee cord or rope. Have the new brake pads and brake pad hardware kit within reach.
3. Loosen Lug Nuts
Use the lug wrench to loosen the lug nuts on the wheels with disc brakes. Don't remove the nuts completely; just break the resistance.
4. Lift the Vehicle
After loosening the lug nuts, use the jack to lift the vehicle. Ensure the vehicle is securely supported by the jack stands. Spin the wheel to ensure there is enough clearance to work on the brakes.
5. Remove the Wheel
Completely remove the lug nuts and take the wheel off to access the brake components.
6. Remove the Brake Caliper
Unscrew the bolts holding the brake caliper. Move the caliper aside without disconnecting the brake line. A bungee cord or rope can be used to secure the caliper to the suspension components. If the brake caliper can't move, it may be necessary to remove the brake caliper mounting bracket to create enough room.
7. Remove Old Brake Pads
Slide out the old brake pads from the caliper bracket. Take note of the original pads' placement to ensure the new pads are installed in the same orientation. The pads may be difficult to remove if they are rusted or stuck. Using a brake cleaner can help, as it removes the dirt and dust, enabling easier disassembly.
8. Prepare and Install New Brake Pads
Clean the caliper bracket's pistons and slides. Lubricate the slides and the contact points on the new pads using brake grease. Then, press the caliper pistons or use a brake caliper tool to ensure the new pads and the caliper fit well. Install the new brake pads in the caliper bracket.
9. Reinstall the Brake Caliper
Place the brake caliper over the new pads and tighten the caliper bolts to the manufacturer's torque specifications.
10. Reattach the Wheel
Put the wheel back and hand-tighten the lug nuts. Lower the vehicle and use a torque wrench to tighten the lug nuts to the specified torque.
After replacing the disc brake pads, remember to pump the brake pedal a few times before driving. This ensures proper brake pad and rotor contact, enhancing safety on the road.
Q1: How long does a brake pad and disc last?
A1: There is no specific time a brake pad and disc last. However, several factors affect their longevity, such as the type of material used to make brake pads, driving habits, road conditions, and the type of vehicle. Signs of worn-out brake pads or discs include squeaking sounds, reduced braking efficiency, and vibrations when braking.
Q2: Can people use damaged brake pads and brake discs?
A2: Alibaba.com buyers should advise customers to change damaged brake pads and discs immediately. Using damaged brake pads can compromise safety since the vehicle may not stop in good time. Furthermore, the damaged brake pads can ruin the brake discs, leading to more expensive repairs.
Q3: Can someone change only one brake pad and disc?
A3: Alibaba.com buyers can source a single brake pad or brake disc. However, it is advisable to change all brake pads on an axle. This is because the vehicle may pull to one side while braking if the brake pads are uneven. Additionally, changing all brake pads saves money and time.
Q4: Can someone use a brake pad and disc from different brands?
A4: It is okay to use a brake pad and disc from different brands. However, buyers should ensure the components are compatible. It is advisable to stick to well-known brands to ensure quality and reliability.
