300mm 8x8mm Acme Leadscrew

300mm 8x8mm Acme Leadscrew | Threaded Rod for NEMA17 Stepper Motors

The 300mm 8x8mm Acme Leadscrew is engineered for precision and durability in motion control systems. Designed to fit NEMA17 stepper motors, this high-quality threaded rod is ideal for CNC machines, 3D printers, and robotics projects. Featuring an 8mm pitch and lead, it ensures smooth, reliable, and efficient linear motion, making it a perfect choice for demanding applications.

Specification

Physical Specifications

• Length: 300mm
• Diameter: 8mm
• Thread Pitch: 8mm per revolution (single-start)
• Thread Type: ACME (trapezoidal thread)
• Lead: 8mm (distance traveled per revolution)
• Material: High-strength stainless steel or carbon steel (often chrome-plated for corrosion resistance)
• Surface Finish: Polished, ensuring smooth motion and minimal friction.

Thread Properties

• Thread Profile: 29° trapezoidal thread angle for efficient load transmission.
• Precision Class: C7 or C8 (standard for leadscrews, suitable for general motion control applications).
• Straightness Tolerance: ≤ 0.1mm over the full length.
• Backlash: Compatible with anti-backlash nuts to reduce backlash during linear motion.

Compatibility

• Motor Compatibility: Designed for NEMA 17 stepper motors with standard motor shaft diameters (5mm or 8mm with coupling adapters).
• Nut Compatibility: Fits standard brass or polymer anti-backlash nuts with a matching 8mm Acme thread profile.

Performance

• Max Axial Load Capacity: Typically 50-100 kg (varies based on mounting and system design).
• Efficiency: Approximately 35-70% depending on lubrication and nut material.
• Speed: Optimized for low to medium-speed applications (e.g., 200-600 RPM depending on the motor).

Applications

• 3D Printers: Often used in Z-axis mechanisms for precision height adjustments.
• CNC Machines: Provides linear motion for light-duty milling, cutting, and engraving operations.
• Linear Actuators: Delivers precise linear movement for automation systems.
• Robotics: Ideal for translating rotational motor motion into linear motion in small robots.

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