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backhoe brake disc

The backhoe brake disc is made of alloy steel with 55–60 HRC surface hardness and tensile strength up to 800 MPa. Outer diameter ranges from 350 to 420 mm, with 15 mm thickness, supporting operational temperatures up to 300°C. Bolt holes are machined with ±0.1 mm precision, and dynamic balancing is accurate to 0.02 mm to reduce braking vibration.

The contact surface features cooling grooves that optimize airflow and oil distribution, lowering friction temperature by 20%. Brake disc weight ranges between 12 and 14 kg, with a service life of up to 2,000 hours under standard conditions. Anti-corrosion coating and wear-resistant heat treatment extend durability, while maintaining optimized friction coefficient at 0.35.
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