43512-3020 Brake Drum

43512-3020 Brake Drum

Brake drum inner diameter: 213 mm
Brake drum diameter: 406 mm
Brake drum height: 270 mm
Bolt hole diameter: 26 mm
Number of bolt holes: 10
Bolt hole circle diameter: 335 mm

Premium Braking Component for Commercial Vehicles

The Toyota 43512-3020 brake drum (also known as brake rotor) is engineered for heavy-duty performance in commercial truck applications. As a crucial part of your vehicle's braking system, this drum brake component delivers reliable stopping power even under extreme operating conditions.

Vehicle Compatibility

The 43512-3020 brake assembly is designed for compatibility with:

HINO 15T, FG1J, and FM3M series trucks

Sinotruk HOWO models

Steyr commercial vehicles

Shandeka heavy-duty trucks

Technical Specifications

Superior Construction Materials

Manufactured from high-grade HT250 gray cast iron, this brake drum rotor offers exceptional:

Heat resistance (withstands temperatures up to 650°F)

Wear resistance (minimum hardness of 180 Brinell)

Structural integrity (tensile strength of 250 MPa)

Performance Advantages

The 43512-3020 braking component provides:

Consistent friction surface for reliable stopping power

Optimal heat dissipation through precision-engineered cooling fins

Extended service life (typically 80,000-120,000 miles under normal conditions)

Vibration resistance to prevent brake judder

Working Principle

Activation: When brake pedal is depressed, hydraulic pressure engages brake shoes

Friction: Brake lining presses against inner drum surface (friction coefficient: 0.35-0.42)

Deceleration: Kinetic energy converts to heat energy through friction

Dissipation: Heat transfers through drum's mass and cooling fins

Release: Springs retract shoes when pedal pressure is released

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