Drum Model： DK2-54522

1. Key Specifications

• Load Capacity: 2,000 lbs (~907 kg)
  Designed for small to mid-sized RVs and trailers, suitable for single or tandem axle systems to ensure effective braking under load.

• Brake Shoe Size: 7 inches
  Compatible with 7″ brake shoes, a common medium-duty trailer specification offering balanced stopping power.

• Bolt Pattern (PCD): 5×4.50 inches
  5 lug holes on a 4.5-inch diameter circle, standard for many U.S. utility trailers and small campers.

• Bearing Model: L44610 (inner/outer bearings identical)
  Tapered roller bearings requiring regular lubrication for longevity.

• Wheel Studs: ½”-20 Press-In
  1/2-inch-20UNF (fine thread) pressed-in studs, requiring professional installation for secure mounting.

2. Design Features

• Material: High-strength cast iron for heat dissipation and wear resistance.

• Cooling Design: May include cooling fins or vents (verify visually) for prolonged braking use.

• Compatibility: Designed for non-lift axles in trailers/RVs, paired with electric or hydraulic brake systems.

3. Typical Applications

• RVs: Small travel trailers (e.g., Airstream Basecamp), teardrop campers.

• Trailers: Dual-axle cargo trailers (≤2,000 lbs capacity), boat trailers, horse trailers.

• Matching Axles: Commonly used with 3,500 lbs Dexter or AL-KO axles.

4. Maintenance & Replacement

• Inspection: Check brake drum wear and bearing lubrication every 5,000 miles or annually.

• Replacement Signs: Exceeding max inner diameter wear limit (stamped on drum), cracks, or severe heat spots.

• Installation Notes: Torque bearing nut to 50-60 ft-lbs and pre-adjust brake shoe clearance.