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OE#1EA615301B/YH22722
Private Label, Customized Label
8708309990
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Ventilated brake discs stand as the premium standard for front-wheel braking in modern vehicles. Their distinct double-layer hollow structure incorporates internal cooling fins, which effectively dissipate the substantial heat generated during braking. This advanced design provides outstanding stability under continuous braking and strong resistance to heat fade, ensuring dependable performance during long-distance travel or frequent braking. They achieve an optimal balance between high performance, extended service life, and practicality for everyday driving.
• The 358mm diameter and 65mm overall thickness tell you immediately that this is no ordinary passenger car disc. That 65mm figure is not a single casting but the combined width of a two-piece floating assembly—a design choice that sets this disc apart from conventional one-piece rotors. The floating mechanism allows the friction ring to expand and contract independently of the hat section as temperatures rise and fall, eliminating the radial stress that causes standard discs to warp or develop thickness variation over time. For Volkswagen owners who demand both performance and longevity, this is engineering that addresses the root cause of brake judder rather than merely treating the symptoms.
• The floating principle works like this: instead of being rigidly fixed to the hub, the friction ring is connected to the hat via a series of spring-loaded pins or bobbins. These allow slight radial and axial movement, accommodating the thermal expansion that occurs during heavy braking. The result is a disc that stays flat and true even when subjected to extreme heat cycles, resisting the cone distortion that can push the caliper piston back into its bore and create that long pedal travel that inspires zero confidence. For drivers who have experienced the sinking pedal feel after a mountain descent, this disc offers a genuine solution.
• Silver paint is not just a cosmetic choice here—it serves a dual purpose. The silver coating applied to the hub and non-friction areas provides a bright, corrosion-resistant finish that complements modern alloy wheel designs while offering robust protection against moisture and road salts. The reflective quality of the silver paint also contributes to slightly lower operating temperatures by reflecting radiant heat away from the hat section, keeping the hub area cooler and extending the life of the wheel bearings. This attention to detail is typical of components designed for European vehicles, where aesthetics and engineering are rarely considered separate concerns.
• The internal ventilation on this disc has been redesigned to maximize airflow through the floating ring. The curved cooling vanes are positioned to act as centrifugal fans, pulling cool air from the center and accelerating it outward through the 65mm-wide gap between the friction plates. The increased width creates a larger air passage, allowing more volume of air to pass through the disc per revolution compared to narrower ventilated designs. This translates directly to lower equilibrium temperatures during sustained braking, preserving the friction characteristics of the pads and maintaining consistent pedal modulation across extended driving sessions.
• Drilling and slotting options are available for those who need additional thermal evacuation and pad refreshing capability. The drill holes provide escape routes for the boundary layer of hot gases that can reduce friction efficiency, while the slots continuously wipe the pad surface clean of glaze and debris. On a floating disc, these surface treatments are particularly effective because the independent thermal expansion of the friction ring prevents the holes from becoming stress risers—a common issue on fixed discs where heat causes micro-cracking around perforations. The floating design essentially allows the ring to breathe, reducing the likelihood of crack propagation even under track-day conditions.
• The 358mm diameter offers substantial leverage for the caliper, multiplying the clamping force without requiring excessive hydraulic pressure. This is especially beneficial for heavier Volkswagen models such as the Touareg or Multivan, where the additional stopping authority makes a meaningful difference in emergency braking scenarios. The larger diameter also spreads the braking load across a wider friction surface, reducing the contact pressure and slowing the wear rate of both disc and pads. It is a virtuous cycle—better performance leads to less wear, which maintains performance for longer.
• Certification and quality assurance are fully compliant with international standards. ECE R90 approval validates the disc's performance against the original equipment reference, while the IATF 16949-certified production facility ensures consistent material properties and dimensional accuracy across every batch. The silver paint finish is applied in a controlled environment to achieve uniform coverage and adhesion, and the entire assembly undergoes run-out inspection before leaving the factory. Whether you are maintaining a personal VW in Europe, servicing a fleet in North America, or supplying a distributor in South America, this disc delivers documented, traceable quality that meets the expectations of the most demanding workshops.
For daily city commuting, high-grade ventilated discs are the ideal option. They effectively manage the heat generated by frequent stops and starts in urban traffic, delivering stable braking performance while maintaining affordable costs and ensuring a long service life. Within medium temperature ranges, these ventilated discs sustain steady performance—completely satisfying the requirements of city driving.
Test and Inspection

100% critical dimensions, runout and DTV inspection
Material physical and chemical inspection
Test shear strength, compressibility, density, flatness and parallelism
Test performance and noise/NVH
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Address: No.80, Taishan Road, ETDZ of Yantai , China
Tel: 0086-532-85761111 | Fax: 0086-532-85768370 | Email: autoparts@winhere.com.cn
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