81.50110.0232 Front Brake Drum
1. Function
• Braking Action: The front brake drum is a key component of the
vehicle's braking system. It generates friction with the brake
shoes to convert the vehicle's kinetic energy into heat energy,
achieving deceleration or stopping.
• Heat Dissipation: The brake drum is designed with cooling ribs or
fins to enhance heat dissipation, maintaining optimal braking
performance under heavy use or prolonged braking.
• Support and Fixation: The brake drum is firmly attached to the
wheel hub, providing a stable surface for the brake shoes to engage
with, ensuring consistent and reliable braking.
2. Specifications
• Part Number: 81.50110.0232
• Application: Specifically designed for heavy-duty trucks, such as
the Shaanxi Automobile Delong F3000 series.
• Product Brand: Hande Axle
• Spare Part Identification: Wear Part
• Packaging: Other (specified by supplier)
• Packaging Quantity: 20 units per package
• Product Weight: 41.65 kg
• Unit: Each
3. Material
• Brake Drum Material: Typically made from gray cast iron, with
common grades including HT200, HT250, and HT300. Gray cast iron is
chosen for its good castability, machinability, vibration damping,
and wear resistance, which meet the working requirements of the
brake drum.
4. Key Parameters
• Tensile Strength: The brake drum must meet specific tensile
strength requirements to withstand the stresses encountered during
braking. For example, some international standards require a
minimum tensile strength of 245 MPa (equivalent to domestic HT250
grade), while domestic standards may require a minimum of 200 MPa
(equivalent to HT200 grade).
• Hardness: The hardness of the brake drum affects its wear
resistance and durability. Heavy-duty brake drums and those for
very high loads may have higher hardness requirements compared to
standard-load brake drums.
• Thermal Fatigue Resistance: Given the high temperatures generated
during braking, the brake drum must resist thermal fatigue to
prevent cracking and premature failure.
• Dimensional Accuracy: The brake drum must meet precise
dimensional specifications to ensure proper fitment with the wheel
hub and brake shoes, maintaining optimal braking performance.
