S-98940A753 1 1/2"-4 x 3 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional precision with ±0.009" per foot accuracy for reliable, repeatable linear motion in demanding applications.
• Superior durability from hardened 4140 alloy steel construction, resisting wear and extending service life under heavy loads.
• High load-bearing capacity with a tensile strength of 125,000 psi, ensuring robust performance in high-stress industrial environments.
• Optimized thread engagement via Class 2C thread fit, providing smooth operation and reduced backlash in assembly systems.
• Enhanced corrosion resistance with a black-oxide surface finish, protecting against rust in harsh operating conditions.
• Left-hand threading design for specialized motion control applications requiring reverse or counter-directional movement.
• Regulatory compliance with RoHS 3 standards, ensuring environmental safety and suitability for global markets.

Professional Applications & Engineering Value

This 1 1/2"-4 Left Hand Acme Lead Screw is engineered to address critical challenges in precision linear motion systems, such as CNC machinery, automated positioning equipment, and heavy-duty actuators. The Black-Oxide 4140 Alloy Steel material, combined with a hardening treatment and Brinell 271 hardness, provides exceptional resistance to abrasion and deformation, minimizing maintenance downtime. The Acme thread type and Class 2C thread fit ensure efficient power transmission with low friction, while the left-hand thread direction offers flexibility for unique mechanical configurations. Its ±0.009" per ft. accuracy guarantees consistent travel, making it ideal for applications where positional repeatability is paramount, such as in industrial automation and precision manufacturing setups.

Specification Summary & Compliance

This lead screw adheres to Class 2C thread fit standards for precise thread engagement and features a 1 1/2"-4 Acme thread size with a travel distance of 0.25" per turn. Manufactured from hardened 4140 alloy steel, it meets a tensile strength of 125,000 psi and hardness of Brinell 271. The product is fully compliant with RoHS 3 (2015/863/EU) regulations, ensuring it is free from hazardous substances and suitable for use in environmentally conscious industries.