Steel shaft

alloyprecisionsplined

Hansheng Automation not only provides spline shafts in standard specifications but also offers customization services according to your requirements. We guarantee product quality and provide a wide range of services for your customization needs. Core Product Features: - Multi-tooth meshing structure: Large contact area, thick teeth arrangement, and over 30% improvement in load-bearing capability compared to conventional key-driven systems make this design appropriate for heavy-duty machinery, industrial motors, and other high-torque uses. - Material Selection: Made from 40Cr alloy structural steel, with a surface hardness of HRC45-50 after quenching treatment, offering wear resistance and fatigue resistance to extend service life. - Geometric Precision Assurance: Strict control of dimensional tolerances between the shaft and components (e.g., H7/f7 tolerance for the minor diameter d of the rectangular spline), with alignment error ≤0.03mm (milling), reducing vibration during high-speed operation. - Dynamic guiding advantages: Keyway side parallelism ≤0.01mm/m (milling), suitable for dynamic applications requiring axial sliding, such as transmission shift mechanisms and telescopic shafts, ensuring smooth and seamless power transmission. - Coverage of National/International Standards: Rectangular splines: Strictly follow GB/T 1144-2001, providing comprehensive requirements for light series/medium series (e.g., 6×18×22×5 to 8×32×38×6). Customisable by criteria including ANSI B92.1 (30° pressure angle) and DIN 5482 (45° pressure angle), involute splines Support non-standard tooth counts, unusual materials (like stainless steel), and non-standard keyway designs, with fast response to tailored needs. - Manufacturing Process: CNC milling + precision grinding. Processing Flow: Bar stock, forgings → rough turning → tempering → precision turning → milling keyways → heat treatment (surface hardening or carburizing and hardening) → grinding center holes → rough grinding → precision grinding → final inspection and packaging Every batch of goods is examined under a coordinate measuring equipment to guarantee perfect compliance with key width, small and big diameters, and critical dimensions. General Parameters, Specifications, and Selection Guidelines: Specification (N×d×D×B) | Minor Diameter d (mm) | Application Scenarios | Torque Capacity (N·m) Light Series 6×18×22×5 | 18 | Small motors, automation equipment | ≤500 Light Series 6×21×25×5 | 21 | Textile machinery, precision transmission | ≤800 Medium Series 6×23×26×6 | 23 | General industrial gearboxes | ≤1200 Medium Series 8×32×38×6 | 32 | Heavy machine tools, mining machinery | ≤2500 Note: Customizable key count N=4/6/8/10, major diameter D tolerance H10/a11, key width B tolerance H11/d10. Pressure Angle | Module m (mm) | Features | Typical Applications 30° | 1.5–5 | Strong self-centering ability, suitable for high-speed transmission | Aero-engine couplings 45° | 0.5–3 | Short tooth profile, high strength, good impact resistance | Construction machinery clutches Note: Customizable parameters such as tooth top height coefficient and displacement coefficient can be provided according to customer requirements. Base material: 40Cr (default), optional 20CrMnTi (carburizing and quenching), 304 stainless steel. Surface treatment: Blackening (rust prevention), high-frequency quenching (surface hardness increased to HRC55+), plating (nickel-phosphorus / hard chrome, corrosion-resistant). Customization Process and Service Commitment: - Requirement Communication: Provide drawings (CAD/3D models) or parameter sheets (key count, dimensions, material, etc.). - Solution Confirmation: Feedback on quotes and technical solutions within 24 hours, with sample production support. - Production Cycle: Varies depending on complexity.