Automotive, Vehicles & Transportation

Auto brake pads manual are essential components in automotive braking systems. They create friction against the brake rotors when the brake pedal is pressed, causing the vehicle to slow down or stop. Made of friction materials, automobile brake pads endure heat and pressure, ensuring safe and effective braking performance. Regular inspection and replacement ensure optimal safety. Types of Auto Brake Pads QBP001 Brake Pads QBP002 Brake Pads QBP003 Brake Pads QBP004 Brake Pads QBP005 Brake Pads QBP006 Brake Pads QBP007 Brake Pads QBP008 Brake Pads QBP009 Brake Pads QBP010 Brake Pads QBP011 Brake Pads QBP012 Brake Pads QBP013 Brake Pads QBP014 Brake Pads QBP015 Brake Pads QBP016 Brake Pads QBP017 Brake Pads QBP018 Brake Pads QBP019 Brake Pads QBP020 Brake Pads The Role of Custom Brake Pads in Auto Braking System Friction Generation: Brake pads create friction against the rotating brake rotors when the brake pedal is applied. This friction converts the kinetic energy of the moving vehicle into heat energy, gradually slowing down or stopping the vehicle. Heat Dissipation: Automobile brake pads are designed to handle high temperatures generated during braking. They dissipate heat efficiently to prevent brake fade, ensuring consistent performance even during prolonged or heavy braking. Smooth Braking Performance: As a vital part in rear automatic braking, brake pedal pads provide smooth and controlled braking. Their friction material interacts with the rotors in a way that prevents sudden jolts or skidding, contributing to safe and predictable deceleration. Wear and Tear Indicator: Many modern custom brake pad made in china have wear indicators that emit a screeching sound when the pads become too thin. This alerts the driver that it's time for replacement, preventing unsafe driving conditions due to worn-out brake pads. Regular inspection, maintenance, and timely replacement of brake pads are vital to ensure optimal braking efficiency, vehicle safety, and the longevity of the braking system.

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A auto brake caliper china is a component in a disc brake system of a vehicle. It houses the brake pads and clamps them against the brake rotor when the brakes are applied. This action creates friction, which slows down and eventually stops the vehicle. Electric brake calipers play a vital role in the braking process by converting hydraulic pressure into mechanical force. Types of Brake Caliper QBC001 Front Brake Caliper Assembly QBC002 Brake Caliper QBC003 Brake Caliper QBC004 Brake Caliper QBC005 Brake Caliper QBC006 Brake Caliper QBC008 Front Brake Caliper Assembly QBC009 Front Brake Caliper Assembly QBC011 Front Brake Caliper QBC013 Front Brake Caliper QBC014 Front Brake Caliper QBC015 Front Brake Caliper QBC007 Rear Brake Caliper QBC010 Rear Brake Caliper QBC012 Rear Brake Caliper QBC016 Rear Brake Caliper Car Brake Caliper Function The brake caliper in car is a vital component of the braking system in vehicles. Its primary function is to apply pressure to the brake pads, causing them to squeeze against the brake disc (rotor) to generate friction and slow down or stop the vehicle. When the driver presses the brake pedal, hydraulic pressure is created in the braking system. This pressure is transmitted to the brake caliper through brake lines or hoses. Inside the brake caliper, pistons or pistons seals are actuated by the hydraulic pressure, causing them to move outward or inward. This movement pushes the brake pads against the auto brake rotor on either side, creating friction. The friction between the brake pads and brake disc converts the kinetic energy of the rotating wheel into heat energy. This heat is dissipated through the brake disc, causing the wheel to slow down or stop. The braking force applied by the electric brake caliper can be adjusted based on the amount of hydraulic pressure created when the brake pedal is pressed. This allows the driver to control the intensity and effectiveness of the braking action. Electronic parking brake calipers can be either fixed or floating. Fixed automotive brake calipers have pistons on both sides of the brake disc and provide more consistent and even pressure distribution. Floating calipers typically have one or two pistons on one side of the brake disc, allowing for more flexibility and a simpler design.

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A auto brake disc, also known as a auto brake rotor, is a circular component attached to a vehicle's wheel hub, providing you with the reliability and confidence you need on the road. When the brake pads clamp onto its surface, friction is generated, converting kinetic energy into heat to slow down or stop the vehicle. It plays a crucial role in modern disc brake systems. Types of Custom Brake Discs QBD001 Front Brake Disc QBD002 Front Axle Brake Disc QBD003 Front Axle Brake Disc QBD004 Rear Axle Brake Disc QBD005 Front Axle Brake Disc QBD006 Front Axle Brake Disc QBD007 Front Brake Disc QBD008 Rear Brake Disc QBD009 Front Brake Disc QBD010 Front Brake Disc QBD011 Rear Brake Disc QBD012 Front Brake Disc QBD013 Rear Brake Disc QBD014 Front Brake Disc QBD015 Front Brake Disc QBD016 Front Brake Disc QBD017 Front Brake Disc QBD018 Rear Brake Disc QBD019 Rear Brake Disc QBD020 Front Brake Disc Brake Disc Function The auto brake disc china, also known as an auto brake rotor, plays a critical role in the braking system of a vehicle. Its main function is to provide a surface for the brake pads to grip onto and generate friction, which ultimately slows down or stops the rotation of the wheel. When the brake pedal is pressed, hydraulic pressure is applied to the brake caliper, which in turn, causes the brake pads to clamp down on the brake disc quality. As the rotating disc is squeezed between the brake pads, friction is generated. This friction converts the kinetic energy of the rotating wheel into heat energy. The disk brake rotor is designed to handle and dissipate this heat efficiently to prevent brake fade and maintain consistent braking performance. Brake discs are typically made of cast iron, as it has excellent heat absorption and dissipation properties. Some high-performance vehicles may use carbon-ceramic disc brake parts, which offer even better heat resistance and weight reduction. By converting the kinetic energy into heat energy, the high-performance brake rotors and braking system slow down or stop the vehicle effectively. The brake disc's design, material quality, and proper maintenance are crucial to ensure its durability, effective friction, and overall braking system performance. Brake Disc Material Car brake discs, also known as rotors, are typically made from several different types of materials by auto brake manufacturers, each with its own characteristics and advantages. The most common materials used for custom-made brake discs include: 1. Cast Iron: Cast iron is the most widely used material for brake discs. It offers excellent heat absorption and dissipation properties, making it suitable for various driving conditions. Cast iron discs are relatively affordable and provide good overall braking performance. 2. Carbon Steel: Carbon steel discs are designed to be lightweight and have better heat resistance compared to standard cast iron discs. They offer improved performance under high-temperature conditions and reduce unsprung weight, enhancing overall vehicle handling. 3. Composite Materials: Composite brake discs combine different materials to offer superior heat resistance, weight reduction, and performance. One common composite material is carbon-ceramic, which consists of a carbon fiber matrix and ceramic particles. Carbon-ceramic discs are expensive but highly effective in extreme driving conditions, such as high-performance or racing vehicles. They provide excellent heat resistance, reduce brake fade, and have a longer lifespan compared to cast iron or carbon steel discs. The choice of brake disc material depends on factors such as the type of vehicle, driving style, and intended use. Passenger cars and standard vehicles often use cast iron discs, while performance vehicles may opt for carbon steel or carbon ceramic discs to improve braking performance and reduce weight. It's essential to consider the specific requirements and recommendations of the vehicle manufacturer when selecting the appropriate brake disc material. Auto Brake Disc Components Rotor Surface: The friction surface where auto brake pads make contact, generating friction to slow down the vehicle. Ventilation Vanes: Channels within the auto brake rotor that promote heat dissipation, preventing brake fade during heavy use.

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A China brake booster, or vacuum booster, is a device in vehicles that enhances braking force. It uses engine vacuum to assist in applying the brakes, requiring less force from the driver. When the brake pedal is pressed, the booster amplifies the hydraulic pressure, improving braking efficiency and control. Types of Brake Booster QVB001 Vacuum Booster with Master Cylinder QVB002 Vacuum Booster with Master Cylinder QVB003 Vacuum Booster with Master Cylinder QVB004 Vacuum Booster with Master Cylinder QVB005 Vacuum Booster QVB006 Vacuum Booster QVB007 Vacuum Booster QVB008 Vacuum Booster QVB009 Vacuum Booster QVB010 Vacuum Booster QVB011 Vacuum Booster QVB012 Vacuum Booster QVB013 Vacuum Booster QVB014 Vacuum Booster QVB015 Vacuum Booster QVB016 Vacuum Booster QVB017 Vacuum Booster QVB018 Vacuum Booster Advantages of the Automotive Brake Booster Enhanced Braking Power: Brake boosters amplify the force applied to the brake pedal, allowing for more efficient and powerful braking. This is especially beneficial in emergency situations when quick and strong braking is crucial. Reduced Pedal Effort: Brake boosters reduce the amount of physical effort required to apply the brakes. This is particularly advantageous for drivers with varying levels of physical strength, making braking more accessible and comfortable. Consistent Braking Performance: Brake boosters help maintain consistent braking performance regardless of external factors like engine vacuum levels. This ensures that the braking force remains steady and reliable in various driving conditions. Improved Safety: The enhanced braking power and reduced pedal effort provided by brake boosters contribute to improved vehicle safety. Drivers can respond more effectively to sudden stops or obstacles, reducing the risk of accidents. Smooth and Controlled Braking: Brake boosters enable smoother and more controlled braking, resulting in less jerky stops. This benefits both the driver and passengers, providing a more comfortable and stable braking experience. These advantages highlight the importance of brake boosters in modern vehicles, enhancing both safety and overall driving comfort. Main Applications of the Brake Booster in Different Vehicles Passenger Cars: Brake Boosters In passenger cars, brake boosters enhance the braking power and reduce the effort needed to apply the brakes. This feature ensures smooth and effective braking, improving safety and driving comfort for everyday commuting and city driving. Commercial Trucks and Buses: Brake Boosters Commercial trucks and buses often carry heavy loads, making efficient braking essential. Electric car brake boosters assist in generating the required braking force, particularly when these vehicles are fully loaded or operating on inclines, ensuring safe stopping distances. Motorcycles: Engine Power Boosters In motorcycles, boosters can refer to engine power enhancers such as turbochargers or superchargers. These devices increase the engine's air intake and overall power output, delivering improved acceleration and performance. Aircraft: Thrust Boosters In aviation, boosters can refer to thrust augmenters used in aircraft engines. These devices increase engine thrust, enhancing takeoff performance and climbing capabilities. They are crucial for large aircraft and those operating from short runways. Off-Road Vehicles: Brake Boosters and Power Boosters Off-road vehicles, such as SUVs and all-terrain vehicles (ATVs), benefit from brake boosters that provide better braking control on rugged terrains. Additionally, power boosters like turbochargers can be used to enhance engine performance, allowing these vehicles to navigate challenging environments more effectively. These diverse applications of boosters showcase their adaptability across different vehicle types and industries, each serving a specific purpose to improve performance, safety, or efficiency. As one of brake booster suppliers, we can provide kinds of wholesale brake booster for sale, and the car brake booster price is reasonable, anything you need, please contact us.

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An automatic vehicle braking system device is a safety technology installed in vehicles that uses sensors and advanced algorithms to detect potential collisions. When a threat is identified and the driver doesn't react in time, the electric car braking system autonomously applies the brakes to prevent or mitigate the impact, enhancing overall road safety. Types of Auto Car Brake Parts Brake Calipers Brake Discs Brake Pads Drum Brake Assembly Disc Brake Assembly Wheel Hub Bearing Brake Booster Clutch Cylinder Wheel Brake Cylinder Popular Types of Auto Brake Parts Video Introduction of Qllino Auto Braking System Parts Auto Braking System Basic Components An auto brake system in cars is a vital component of modern vehicles that helps enhance safety on the road. This system utilizes a combination of sensors, actuators, and control units to detect potential collisions and automatically apply the brakes to prevent or mitigate the impact. One of these components is the auto brake disc, also known as a rotor. The brake disc is a circular metal plate that is mounted on the wheel hub and rotates with the wheel. When the brakes are applied, brake pads clamp down on the brake disc, generating friction that slows down or stops the rotation of the wheel. Auto brake pads are another crucial element of the electric car braking system. These pads are made from a high-friction material and are positioned on either side of the brake disc. When the brakes are activated, the brake pads are pressed against the brake disc, creating the necessary friction to slow down or stop the vehicle. The auto brake caliper is responsible for housing the brake pads and applying the necessary force to squeeze them against the brake disc. The caliper is either fixed or floating, depending on the type of braking system. Fixed calipers have pistons on both sides of the brake disc, while floating calipers have pistons on only one side that move the brake pads towards the disc. Other components of an auto braking system include the brake booster, which amplifies the force applied to the brakes when the driver presses the pedal, and the brake fluid, which transfers the pressure from the brake pedal to the calipers and brake pads. While the radar sensor, camera sensor, control unit, and actuators are critical for the autonomous braking system to operate, it is essential not to overlook the mechanical components such as the brake disc, brake pads, and brake caliper. These components work together to perform the physical action of stopping or slowing down the vehicle when a collision is detected, ensuring the overall effectiveness and safety of the car hand brake system. How Automotive Brakes Work Custom car brakes play a vital role in ensuring the safety of a vehicle. When the driver presses the brake pedal, the automatic car parking brake system applies friction to slow down or completely stop the vehicle. The most common type of automatic car parking brakes are disc brakes, although some vehicles still use drum brakes. Disc brakes consist of several parts: 1. Brake pedal: When the driver presses the brake pedal, hydraulic pressure is created in the brake fluid. 2. Brake fluid: It is stored in the brake fluid reservoir and is responsible for transmitting the pressure from the brake pedal to the brake caliper or drum. 3. Brake caliper: In a disc brake system, the brake caliper is a housing that holds the brake pads and pistons. When the brake pedal is pressed, the brake fluid flows into the caliper, causing the pistons to push the brake pads against the rotor. 4. Brake pads: These are made of friction material and are attached to the brake caliper. When the brake pedal is pressed, the brake pads come into contact with the rotor, creating friction and thus slowing down the rotation of the wheels. 5. Rotor: The rotor is a metal disc that is attached to the wheel hub. When the brake pads press against the rotor, the friction converts the kinetic energy of the rotating disc into heat energy, which dissipates into the surrounding air. 6. Anti-lock Braking System (ABS): Some modern vehicles are equipped with an ABS, which prevents the wheels from locking up during braking. Developed by experienced car brake manufacturers, the ABS uses sensors to monitor the rotational speed of each wheel and modulates the brake pressure on each wheel individually to maintain traction and control. Drum brakes operate slightly differently. Instead of brake pads and rotors, they use brake shoes and a brake drum. When the brake pedal is pressed, hydraulic pressure causes the brake shoes to be forced against the brake drum, creating friction and slowing down the vehicle. The Role of Automatic Vehicle Braking System The auto car brake device plays three crucial roles in modern vehicle safety. Firstly, it acts as a collision avoidance mechanism by constantly monitoring the road and identifying potential obstacles, such as vehicles or pedestrians. Secondly, the automobile braking system functions as a driver assistance tool, alerting the driver with visual and auditory warnings about impending collisions. Lastly, in situations where the driver's response is insufficient, the auto brake system in cars automatically engages the brakes to either avoid the collision entirely or minimize its impact. These roles collectively enhance road safety by providing an additional layer of protection against accidents caused by human error or unexpected hazards. Custom Car Brakes System Device Advantages Custom Car Brake System device offers several advantages that contribute to improved road safety and accident prevention: Collision Avoidance: The automatic park brake device employs advanced sensors and real-time monitoring to detect potential collisions. By identifying obstacles such as vehicles or pedestrians in the vehicle's path, it allows the auto braking system to take proactive measures to avoid accidents. Reduced Impact Severity: In cases where a collision is imminent and the driver's response is insufficient, the auto brake parts autonomously applies the brakes to reduce the impact's severity. This swift intervention of custom car brakes can significantly decrease the force of the collision, potentially saving lives and minimizing property damage. Mitigation of Human Error: Human errors, like distractions or delayed reactions, can lead to accidents. The Auto Braking System device acts as a safety net, intervening when necessary to prevent accidents caused by human oversight. Enhanced Driver Awareness: The automatic park brake device serves as a constant reminder to drivers about potential hazards. Visual and auditory warnings keep drivers engaged and alert, promoting better situational awareness and encouraging safer driving habits. Safety in Diverse Conditions: The car hand brake system operates consistently in various driving conditions, including adverse weather, low visibility, or nighttime driving. This adaptability ensures that the system remains effective and reliable regardless of environmental challenges. The auto braking system device's advantages encompass collision avoidance, reduced impact severity, mitigation of human error, enhanced driver awareness, and safety under diverse conditions. These benefits collectively contribute to a safer driving experience and a significant reduction in accidents on the road. As one of auto brake manufacturers, we can provide kinds of car brakes for sale, if you have needs, please contact us.

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New original delphi 400903-00074C 28337917 common rail diesel fuel injector fuel injector 400903-00074C 28337917 for DOO Product Description common DOO Delphi Injector Control Valve 400903-00074C 28337917 0 common DOO Delphi Injector Control Valve 400903-00074C 28337917 1 common DOO Delphi Injector Control Valve 400903-00074C 28337917 2 common DOO Delphi Injector Control Valve 400903-00074C 28337917 3 common DOO Delphi Injector Control Valve 400903-00074C 28337917 4 common DOO Delphi Injector Control Valve 400903-00074C 28337917 5 Specification Warranty 6~12 Months Brand Name Original, OEM Product name injector control valve 7206-0440 7135-588 7206-0379 OE number 1 7206-0440 OE number 2 7135-588 OE number 3 7206-0379 MOQ 1 piece Delivery time 1~3 days Condition Original, OEM, New Package Original or neutral package Payment methods T/T, PayPal, Western Union, Trade Assurance... Shipping DHL, FedEx, UPS, TNT, EMS, by Air, by Sea, by rail Company Profile Changsha GoodWell Technology Co., Ltd. is a leading provider of FUEL INJECTORS, FUEL INJECTION PUMPS, ECM/ECU, TURBOCHARGERS, and SCR in automotive, industry, marine, agricultural, and diesel generator sets. Our chairman has been engaged in the sales and maintenance of fuel system parts since 1997 and is a senior expert in this industry. We are able to provide Genuine, OEM, and After-market products to you, as we are an authorized distributor of BOSCH since 2004, and DELPHI since 2014, and we have factories for producing fuel injectors, fuel injection pumps, and turbochargers. We also have two sales offices and warehouses in Changsha Auto Parts City for both domestic and international markets. We take pride in offering competitive prices without compromising on product quality. Each and every product undergoes rigorous quality testing, ensuring reliability and performance. Our commitment to quality is reflected in the multiple inspection and test process that 100% of products go through before leaving our factory. Our aim is to create value not only for domestic clients but as well as for global customers by providing Good quality products and Well service. Win- win is always our business management philosophy.

Model: H407 Use on : Bus /Truck / RV / Hardware Material : PVC / Steel Product Name : Rubber Steel Handle Large Application : Universal handle Size : 250mm x 8mm Color : Black / Dark grey / Cream-colored / Yellow Market : Australia / Japan / Europe / UK / USA Place or Origin : Taiwan Packging : Poly bag and customize Shipment: Minimum Order Quantity : 2000 Tiered Pricing (e.g., 10-100 units, $100 per unit; 101-500 units, $97 per unit) : Prices in USD Payment Method : T/T

Model: PBB740 Use On : Cars, Bus, Marine, Boat, Auto, etc vehicles Material : ABS Product Name : 9V - 50V Digital Voltmeter for Vehicle Battery Voltage Display Application : vehicle battery voltage meter monitoring Certificate : CE Approved Product Size : L33x W37.4 x H36.3 mm Mounting diameter : 29mm Color : Black / White / etc Market : Australia, ASIA , Europe and etc Place or Origin : Taiwan Packaging : Standard or Customized Packaging Shipment: Minimum Order Quantity : 2000 Tiered Pricing (e.g., 10-100 units, $100 per unit; 101-500 units, $97 per unit) : Prices in USD Payment Method : T/T Product Lead Time : 30 to 45 days Shipping Port : Taiwan Production Capacity : 1200 PCS / day Product Packaging : standard packaging / small box / customized

E-Mark Safety Triangle Reflex Reflective Plastic Reflector Model: R138R Use On : Trailer / Tractor / Truck trailer / construction vehicle Material : Acrylic Lens / ABS base / Self Adhesive Product Name : Triangle Reflex Reflective Plastic Reflector with Dual Fixing Hole Function : Reflector Approval Standard : E6 E-mark / ADR Australia Approval Resistance : Water resistant (Ultra sonic welding) Size : 138 mm x 8 mm Color : Red / Amber / Clear Market : Australia, UK, Germany and etc. Place or Origin : Taiwan Packaging : standard packaging / small box / customize Shipment: Minimum Order Quantity : 2000 Payment Method : T/T Product Lead Time : 30 to 45 days Shipping Port : Taiwan Production Capacity : 5000 PCS / day Product Packaging : standard packaging / small box / customized

Model: FL466 Item : Fog Lamp Material : Acrylic Lens, ABS Base Product Name : Fog Lamp ( 12V ) Function : Fog Lamp Approval Standard : E4 E-mark Approval Market : Australia, Taiwan, UK, Germany and etc. Shipment: Minimum Order Quantity : 2000 Payment Method : T/T Product Lead Time : 30 to 45 days Shipping Port : Taiwan Production Capacity : 5000 PCS / day Product Packaging : standard packaging / small box / customized Introduction: As a leading manufacturer, we take pride in presenting our cutting-edge LED trailer fog lights, designed to elevate your road safety. Crafted with precision, these fog lamps feature an acrylic lens and ABS base, combining durability with efficiency. The primary function of our fog lamps is to enhance visibility during adverse weather conditions. Whether you're navigating through fog, rain, or mist, our LED trailer fog lights ensure that you have a clear view of the road ahead. The acrylic lens provides optimal clarity, minimizing glare and maximizing safety.

12V Down Light Model: BL004 Material : Cupper Product Name : Interior Halogen Downlight Application : RV, Caravan, Yacht, Marine, Motorhome Function : D 94 mm Color : Gold / Sliver / White / Paint Market : Australia, UK, Russia, Japan, Taiwan, SA and etc. Place or Origin : Taiwan Packging : Customize Shipment: Minimum Order Quantity : 2000 Payment Method : T/T Introduction: As a premier manufacturing hub, we specialize in producing 12V halogen downlights crafted from top-notch copper material. Our Interior Halogen Downlights, with a generous diameter of 94mm, are engineered to enhance the ambiance of various spaces, catering specifically to RVs, caravans, yachts, marine environments, and motorhomes. The distinct feature of our halogen downlights lies in their versatility – available in captivating gold, sleek silver, pristine white, or customizable painted finishes. This diverse color palette ensures a seamless integration into any interior design.

Model: BB438 Use on : Trailer / Camping / etc Material : High Impact Resistant Polypropylene (PP) Product Name : Large Battery Box Application : Camping / Marine/ Water System / Solar Power / Telecom / Speed Camera / etc Resistance : Weather resistant Product Size : L 410 x W250 x H 260 mm Internal Size : L 325 x W180 H200mm Color : Black Market : Australia, UK, Russia, Japan, Taiwan, SA and etc. Place or Origin : Taiwan Packging : 12 set in Carton Shipment: Minimum Order Quantity : 2000 Tiered Pricing (e.g., 10-100 units, $100 per unit; 101-500 units, $97 per unit) : Prices in USD Payment Method : T/T Product Lead Time : 30 to 45 days Shipping Port : Taiwan Production Capacity : 1200 PCS / day Product Packaging : standard packaging / small box / customized

Trailer Wiring Harness Connector Mounting Trailer Socket Bracket Model: SB509 Material : Steel with E-coating Product Name : Trailer Socket Bracket Application : Mounting trailer socket on Car Color : Black Market : Australia, UK, Europe and etc. Place or Origin : Taiwan Packging : Customized Shipment: Minimum Order Quantity : 2000 Tiered Pricing (e.g., 10-100 units, $100 per unit; 101-500 units, $97 per unit) : Prices in USD Payment Method : T/T Introduction: As a premier manufacturer in the trailer accessory industry, we introduce our specialized product: 7 pin trailer plug brackets and mounting bracket for trailer plug. Crafted with precision from high-quality steel and E- coated for added durability, these brackets offer a reliable solution for mounting trailer sockets on your car.

Model: BP500B Material : Steel Product Name : Bearing Protector Application : Protect the axle from rusting Size : L 45 x W 48 mm. Fitting Diameter 45.4 mm Color : Black / Red Market : Australia Place or Origin : Taiwan Packging : 2 PCS a set / customize packaging Shipment: Minimum Order Quantity : 2000 Tiered Pricing (e.g., 10-100 units, $100 per unit; 101-500 units, $97 per unit) : Prices in USD Payment Method : T/T Introduction: Trailer bearing protectors are essential components for ensuring the longevity of your bearing protectors boat trailer. Crafted from durable steel, these protectors effectively shield axles from rusting, providing unparalleled protection for your trailer's bearings. Designed with precision, our bearing protectors boast a size of L 45 x W 48 mm and a fitting diameter of 45.4 mm. This meticulous engineering ensures a perfect fit, guaranteeing maximum protection for your trailer's bearings.