VEVOR Electric Trailer Brake Assembly, 12 x 2 Inch, 1 Pair Self-Adjusting Electric Brakes Kit for 6000 lbs Trailer Axle, Backing Plates for Braking System Part Replacement, Fit for Trailers, RVs

VEVOR Electric Trailer Brake Assembly, 12 x 2 Inch, 1 Pair Self-Adjusting Electric Brakes Kit for 6000 lbs Trailer Axle, Backing Plates for Braking System Part Replacement, Fit for Trailers, RVsSelf-adjusting Electric Trailer Brake KitHigh CompatibilityHeavy-Duty Downhill StabilityLong Lifespan of ≥30,000 kmWide ApplicationProtective Dust ShieldElectromagnet Specifications: 12 in / 304.8 mm,Brake Pad Dimensions: 2 x 0.2 in / 50 x 4.7 mm,Compatible Trailer Weight: 6000 lbs / 2722 kg,Brake Pad Friction Coefficient: 0.48,Brake Drum: 12.9 x 6.69 in / Φ327.6 x 170 mm,Brake Dimensions: 12 x 2 in / 304.8 x 50.8 mm,Product Dimensions:,Magnetic Force: ≥600N,Brake Drum Dimensions (inner diameter): Φ 12 in / Φ 305 mm,Flange Bolt Count: 5, PCD 3.9 in / 99 mm, 5-Φ10,Service Life: ≥30000 km,Package Contents: Single Set (2 brake shoes + 2 brake drums),Main Materials: Gray Cast Iron & SPHC & Q235,Brake Drum Bolt Count: 6, PCD=5.5 in / 139.7 mm, 1/2-20 UNF,Item Model Number: BF12-Z03AB*2,Product Weight: 91.7 lbs / 41.6 kg,Brake Shoe: 13.82 x 2.81 in / Φ351 x 71.5 mm,Voltage/Current: DC12V/2.8-4.2A