3504011U1510
Brand: JAC
Model: S5
Product Name：Rear Brake Disc
Part Number: 3504011U1510
Product Details
1. Basic Overview & Core Functional Positioning
The 3504011U1510 Rear Brake Disc is a genuine OEM core braking safety component exclusively developed and calibrated for the JAC S5 compact SUV series. Installed on the rear wheel hub assembly and matched with rear brake calipers and brake pads, this precision brake rotor serves as the key friction and deceleration carrier of the vehicle’s rear wheel braking system. It undertakes critical safety functions including friction braking, kinetic energy conversion and high-speed parking stabilization, directly determining the vehicle’s braking sensitivity, deceleration efficiency, braking distance consistency and driving safety under daily urban driving, highway cruising and emergency braking conditions. As a vital secondary braking matching part cooperating with the front braking system, it balances front and rear braking force distribution to avoid braking deviation, wheel locking and tail swing risks during deceleration.
Different from front brake discs that bear main braking load, this JAC S5 dedicated rear brake disc is professionally optimized for rear axle load characteristics and auxiliary braking logic. It assumes stable deceleration tasks during daily mild braking, cruising speed reduction and electronic handbrake locking, and provides auxiliary braking force during emergency braking to shorten overall braking distance. The standardized rotor design ensures synchronous coordination with the original ABS anti-lock braking system of JAC S5, effectively preventing rear wheel locking during slippery road braking, maintaining tire ground grip and improving vehicle body stability. It also bears the heat dissipation and wear matching functions of the rear braking system, ensuring long-term stable and consistent braking feedback without attenuation or failure.
The part number 3504011U1510 is a dedicated exclusive specification for JAC S5 rear braking system, with exclusive outer diameter, rotor thickness, bolt hole distribution, hub matching aperture and friction surface calibration parameters. It cannot be interchanged with brake discs of other JAC models such as S3, S7, Refine series or universal aftermarket rotors. Manufactured in strict accordance with IATF 16949 international automotive quality standards and JAC original factory braking system matching specifications, it features precise dimensional tolerance and stable friction coefficient. Compared with inferior aftermarket brake discs that suffer from unbalanced rotation, easy thermal deformation, uneven wear and braking jitter, the genuine 3504011U1510 rear brake disc maintains long-term stable braking performance and wear consistency, being the most reliable replacement part for JAC S5 braking system maintenance and overhaul.
2. Material Selection & Manufacturing Standards
The 3504011U1510 Rear Brake Disc adopts high-standard automotive-grade gray cast iron (HT250) raw materials, which are specially smelted and refined for automotive braking high-temperature friction and alternating load working conditions. This high-density cast iron material features uniform internal grain structure, excellent thermal stability, high friction resistance and strong compression resistance. It can withstand instantaneous high-temperature friction heat generated by frequent braking and continuous load impact, effectively avoiding thermal deformation, warping and structural fatigue failure. The material has stable friction coefficient, ensuring consistent braking force output in low-temperature normal driving and high-temperature continuous braking scenarios, without braking attenuation or friction failure.
The brake disc undergoes integrated precision casting, stress relief annealing and high-precision double-sided grinding processing. After high-temperature annealing treatment, the internal casting stress is completely eliminated, greatly improving the anti-deformation ability and structural durability of the rotor. The dual friction surfaces are polished by micron-level precision grinding technology, forming ultra-smooth and flat friction working surfaces with uniform roughness, which perfectly fits the original brake pads to ensure full contact and even wear. The hub matching area and bolt hole positions adopt one-time precision forming process with accurate dimensional tolerance, ensuring zero-error assembly and concentric rotation. The surface is treated with anti-rust and anti-corrosion coating to prevent oxidation rust during storage and use, maintaining long-term surface flatness and friction stability.
All finished 3504011U1510 rear brake discs pass strict multi-channel factory performance testing, including dynamic balance calibration, friction surface flatness detection, high-temperature thermal stability testing, dimensional tolerance full inspection and wear resistance durability testing. Each product is strictly screened for rotor runout value to eliminate defective products with unbalanced rotation and surface deviation. The standardized production process ensures that every genuine brake disc has uniform hardness, stable friction performance and excellent heat dissipation capacity, fully meeting the long-term high-frequency braking safety requirements of JAC S5 SUV models under complex road conditions.
3. Structural Composition & Working Principle
The 3504011U1510 Rear Brake Disc adopts a mature solid integrated disc structure, which is the original standard matching structure for JAC S5 rear braking system. The overall structure is compact and highly targeted, mainly composed of flat friction working disc surface, central hub matching base, symmetrical fixing bolt holes and anti-rust protective outer edge. The overall diameter, thickness specification and hole position spacing are strictly calibrated according to JAC S5 rear wheel assembly space, brake caliper stroke and braking system parameters, realizing seamless assembly and perfect friction matching without modification or clearance deviation.
Its core working principle relies on friction kinetic energy conversion and thermal energy dissipation. When the driver applies the brake, the brake caliper pushes the brake pads to clamp the two sides of the rotating brake disc tightly. Through strong friction between the pads and the disc surface, the rotational kinetic energy of the wheels is converted into thermal energy, realizing vehicle deceleration and parking. During the whole braking process, the high-stability disc structure maintains flat friction surface contact, ensuring uniform friction force and stable deceleration effect. The solid disc body structure has excellent structural rigidity, which can resist high-temperature extrusion and friction impact without local deformation, ensuring no jitter or deviation during braking.
The optimized symmetrical hole position design ensures uniform stress during rotation and braking, effectively reducing rotor runout and vibration. The smooth disc edge structure avoids friction interference with brake pads and dust covers, ensuring unobstructed wheel rotation. The integrated hub base realizes precise positioning with the wheel bearing, maintaining high concentricity during high-speed rotation. Through scientific structural design and friction matching, the brake disc ensures linear braking feedback, stable rear-wheel braking force and coordinated front-rear braking balance, optimizing the overall braking safety and handling stability of JAC S5 vehicles.
Contact us
Leave your messages
