Product Model: DK2-545, DK2-550, DK2-555, DK2-5475

Brake Drum Models: DK2-545, DK2-550, DK2-555, DK2-5475

1. Load Capacity & Applications

• Designed for heavy-duty vehicles, these brake drums support a load capacity of 3,500 lbs (~1,587 kg), making them ideal for campers, RVs, and trailers.

2. Key Specifications

• Brake Shoe Size: 10-inch shoes ensure stable braking performance, suitable for frequent braking.

• Bolt Pattern (PCD):

  • 5-4.50, 5-5.50, 5-5.55, 5-4.75 – Multiple bolt patterns for compatibility with various wheel hubs.

• Bearings: Equipped with L68111/L44610 bearings for durability and smooth rotation.

• Wheel Studs: ½”-20 press-in studs for secure wheel mounting.

3. Design & Compatibility

• Universal Fit: Adaptable to many heavy-duty chassis (some models may share hub specs with vehicles like Hyundai IX35 or Kia Sportage—verify exact fitment).

• Corrosion Resistance: Some variants feature anti-rust coatings (similar to RDA-branded drums) for extended lifespan.

4. Performance Features

• Heat Management: Optimized cooling design (e.g., symmetrical vane casting, akin to RDA brake discs) minimizes brake fade during long descents.

• Durability: Made from cast iron or high-carbon steel, with CNC machining & heat treatment for wear resistance.

5. Usage & Maintenance Tips

• Inspection: Regularly check brake shoe wear and bearing lubrication, especially for frequently used RVs/trailers.

• Replacement Reference: For installation guidance or alternative models, compare with similar specs (e.g., RDA7871: 284mm diameter, 8.4mm min thickness).