S-92428A670 1 1/4"-4 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Precise linear positioning with 0.25" travel per turn for repeatable motion control in automated systems
• Exceptional wear resistance due to cast iron construction with Rockwell B72 hardness, extending service life in high-cycle applications
• Reliable thread engagement with Class 2G fit, minimizing backlash and ensuring smooth power transmission
• Optimized for right-hand drive systems using standardized ACME 1 1/4"-4 thread profile for broad compatibility
• Direct 1:1 motion transfer through single-start thread design, simplifying speed calculations and control logic
• Secure manual operation enabled by integrated flat handle for maintenance and positioning adjustments
• Environmentally responsible manufacturing with full compliance to RoHS 3 and REACH regulations

Professional Applications & Engineering Value

This cast iron ACME lead screw delivers critical performance in industrial linear motion systems where durability and precision are paramount. The 1 1/4"-4 ACME thread profile with Class 2G fit provides optimal balance between clearance and load distribution, reducing wear in high-cycle applications like CNC positioning tables, material handling equipment, and precision actuators. The Rockwell B72 hardness rating ensures superior resistance to deformation under continuous loads, while the 0.25" travel per turn enables fine adjustment capabilities. Engineered for right-hand thread direction and 1:1 speed ratio, this component integrates seamlessly into existing power transmission systems, offering reliable performance in manufacturing, automation, and heavy machinery applications where consistent linear motion is critical.

Specification Summary & Compliance

This inch-system lead screw maintains Class 2G thread fit tolerances per ACME standards, ensuring proper clearance for smooth operation. The component meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, confirming environmental safety and regulatory adherence. Manufacturing specifications include single thread start design, right-hand thread direction, and 1:1 speed ratio for predictable motion characteristics. The cast iron construction with specified hardness provides consistent mechanical properties across production batches.