The brake drum is the core rotating friction component of the drum-type braking system for heavy trucks, rotating together with the wheels:
1. During braking, the internal brake pads expand outward and press against the inner circular friction surface of the brake drum, relying on friction to reduce the rotational speed of the wheels and achieve vehicle deceleration and stopping;
2. It absorbs the huge heat generated by the brakes and disperses the friction-generated heat energy outward;
3. In conjunction with the wheel hub, it transmits torque and bears the vehicle's axle load;
4. It ensures the braking stability under heavy-load and long downhill driving conditions, and is a key component for driving safety.
1. Special installation dimensions for Han De Bridge, original factory holes, direct replacement, no need for processing;
2. High wear-resistant cast iron material, precisely machined inner circular friction surface, high roundness and coaxiality, smooth braking without vibration;
3. Outer wall with heat dissipation ribs structure, accelerates heat dissipation, reduces the risk of thermal degradation, does not easily become soft during continuous braking on long downhill sections;
4. Internal stress release treatment during casting, resistant to thermal cracking and deformation, suitable for heavy loads, mountainous areas, and construction sites with harsh road conditions;
5. Dynamic balance verification, reduces high-speed braking jitter; surface anti-rust spraying.
Resolved fault issues
✅ The inner wall of the original vehicle's brake drum was excessively worn, resulting in insufficient braking force and longer braking distance
✅ The brake drum was deformed and had grooves, causing the vehicle to shake and the wheels to vibrate when braking
✅ There were thermal cracks and chips on the inner wall, posing a safety hazard of brake failure
✅ There were abnormal brake noises and screeching sounds, and the brake pads wore out extremely quickly
✅ The braking performance weakened significantly during long downhill sections, and the brakes became soft
FAQ
Q: Which truck does it fit?
A: Fits SHACMAN Delong F3000, M3000, X3000, X6000 with Hande rear wheel hub reduction axle. It is rear axle brake drum.
Q: What is the function of brake drum?
A: It is the rotating friction part of drum brake system. When braking, brake shoes expand and press against the inner surface of brake drum to generate friction force to slow down or stop the truck. It also dissipates heat generated by friction and bears vehicle load.
Q: What material is this brake drum made of?
A: High chromium alloy gray cast iron (HT250). Good wear resistance, high temperature resistance and anti-thermal cracking performance.
Q: What symptoms indicate the brake drum needs replacement?
A: Excessive inner diameter wear, deep grooves on friction surface, thermal cracks, out-of-round deformation, brake vibration, weak braking force and abnormal squeaking noise.
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