S-93026A658 1 1/4"-4 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Precise 0.25" travel per turn enables accurate linear positioning in automated systems
• Left-hand Acme thread design provides reliable performance in reverse-thread applications where standard right-hand threads would loosen
• Carbon steel construction with Rockwell B75 hardness ensures durability and resistance to wear in demanding industrial environments
• Class 2G thread fit offers optimal clearance for smooth operation while maintaining necessary precision
• Single-start thread configuration delivers consistent, predictable motion control without complexity
• Coupling nut design allows secure connection between lead screw components in linear motion systems
• 1 1/4"-4 thread size compatibility integrates seamlessly with standard Acme lead screw systems

Professional Applications & Engineering Value

This left-hand Acme coupling nut addresses critical engineering challenges in applications requiring reverse-thread operation and precise linear motion control. The carbon steel construction with Rockwell B75 hardness provides exceptional durability against wear in repetitive motion systems, while the Class 2G thread fit ensures smooth operation with appropriate clearance for industrial environments. The 0.25" travel per turn delivers predictable linear advancement, making it ideal for positioning systems, clamping applications, and machinery where reverse-thread operation prevents unintended loosening. Engineered specifically for Acme lead screw systems, this component maintains reliability in automated equipment, manufacturing machinery, and motion control systems where precise linear movement is paramount.

Specification Summary & Compliance

This Acme coupling nut features 1 1/4"-4 left-hand Acme threads with Class 2G thread fit per ANSI/ASME B1.5 standards, ensuring proper clearance and functional precision. The component maintains single-start thread configuration with 0.25" travel distance per turn for consistent linear motion. Manufactured from carbon steel with Rockwell B75 hardness for mechanical durability. While thrust load capacity is not rated, the nut is engineered for general industrial applications requiring reliable reverse thread Acme performance in linear motion systems.