1. High-Strength Load-Bearing Design

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.

2. Precision Alignment and Guidance Performance

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.

3. Compatibility with Standardization and Customization

Coverage of National/International Standards:

Rectangular splines: Strictly follow GB/T 1144-2001, providing comprehensive requirements for light series/medium series (e.g.,618225 to 832386).

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.

4. Advanced Processes and Quality Control

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.

Customized 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.