Our Drive Connecting Rod is a precision-engineered mechanical linkage component, designed for reliable power transmission and motion control in industrial machinery and building material equipment.
1. Material & Heat Treatment
Material: 40Cr alloy steel, offering high tensile strength, excellent toughness, and superior fatigue resistance, ideal for repeated cyclic loading in drive systems.
Quenched & Tempered Treatment: Heat treated to achieve 300–350 HBS hardness, ensuring optimal mechanical performance and wear resistance under continuous operation.
Surface Treatment: Decorative chrome plating provides enhanced corrosion resistance and a smooth, durable finish, while improving wear resistance for long-term service life.
2. Precision Machining & Design
Tight Tolerance Compliance: Unmarked dimensions follow GB/T 1804-m (medium tolerance grade), ensuring consistent fit and alignment across all critical features.
Precision Bore Machining: Multiple precision bores (Ø20 H7, Ø34 H7, Ø25 H7) with tight positional tolerances (φ0.020mm relative to datum A) guarantee precise concentricity and alignment with mating shafts, pins, and bearings.
Edge Finishing: All sharp edges are deburred and chamfered to C0.5mm, eliminating stress concentrations and ensuring safe handling during assembly.
Paired Machining: Manufactured as left/right mirror-image pairs and clearly marked, ensuring consistent performance and interchangeability within the drive linkage system.

3. Structural & Functional Features
Optimized Linkage Geometry: The contoured, multi-hole design efficiently transmits rotational motion into linear or oscillating movement, suitable for heavy-duty drive systems.
High Fatigue Resistance: The 40Cr material and robust geometry resist fatigue failure under repeated loading, ensuring reliable operation in 24/7 industrial production environments.
Corrosion & Wear Resistance: The chrome-plated surface protects against rust and abrasion, extending service life in dusty, humid workshop conditions.
Industrial building material machinery (e.g., forming, cutting, and conveying drive systems)
Mechanical linkage and power transmission assemblies
Automation equipment and heavy-duty drive systems
Industrial machinery requiring precise, repeatable motion control
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For technical specifications, bulk pricing, or custom machining requests, please contact our sales team to place your order or initiate an inquiry.