S-98940A653 1 1/2"-4 x 3 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Black-oxide coated 4140 alloy steel with hardening treatment provides superior wear resistance and protection against rust in demanding industrial environments.
• Exceptional Precision & Repeatability: Achieves a travel accuracy of ±0.009" per foot, ensuring reliable and consistent positioning for high-stakes motion control applications.
• High Load-Bearing Capacity: With a tensile strength of 125,000 psi and a Brinell hardness of 271, this screw withstands heavy loads and resists deformation under stress.
• Optimized Power Transmission: The 0.25" travel distance per turn with a single start Acme thread delivers efficient force translation and predictable linear motion.
• Superior Thread Engagement & Longevity: Class 2C thread fit ensures smoother operation with reduced backlash, extending the service life of both the screw and mating nut.
• Broad Industrial Compatibility: Fully threaded, right-hand design in inch system measurements makes it a versatile drop-in replacement and upgrade for many machinery setups.
• Regulatory Compliance for Global Markets: RoHS 3 compliance ensures the product meets stringent international environmental and safety standards.

Professional Applications & Engineering Value

This high-precision ACME lead screw is engineered to solve critical challenges in industrial automation and motion control systems. The Black-Oxide 4140 Alloy Steel construction, combined with a hardened finish, directly addresses issues of component wear and environmental degradation, significantly reducing maintenance cycles in applications like CNC machinery, linear actuators, and heavy-duty positioning tables. The Class 2C thread fit and precise ACME thread form minimize backlash, providing the stability needed for repeatable operations. Its 0.25" travel per turn and high tensile strength make it ideal for systems requiring accurate linear movement under substantial load, ensuring operational reliability and long-term performance in demanding engineering environments.

Specification Summary & Compliance

This ACME lead screw adheres to inch system standards with a thread size of 1 1/2"-4 and a Class 2C thread fit for consistent dimensional accuracy. It is manufactured from hardened Black-Oxide 4140 Alloy Steel and is fully compliant with RoHS 3 (2015/863/EU) regulations, ensuring it meets global environmental directives for hazardous substance restrictions.