S-98940A309 1 1/4"-5 x 18" Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional accuracy with ±0.009" per foot travel distance tolerance for reliable, repeatable motion control in precision applications.
• High durability and wear resistance from hardened 4140 alloy steel with Brinell 271 hardness, extending service life in demanding industrial environments.
• Superior load-bearing capacity thanks to 125,000 psi tensile strength, ensuring stable performance under heavy mechanical stress.
• Optimized thread design with Class 2C fit and Acme thread type, providing smooth engagement and reduced backlash for efficient power transmission.
• Corrosion-resistant black-oxide surface enhances protection against rust and wear, ideal for harsh operating conditions.
• Consistent 0.2" travel per turn with single-start threading, delivering predictable linear motion for automated systems.
• Environmental compliance with RoHS 3 standards, meeting global regulatory requirements for safe industrial use.

Professional Applications & Engineering Value

This high-precision ACME lead screw is engineered to address critical challenges in industrial motion control, such as maintaining accuracy under load and minimizing operational downtime. Crafted from black-oxide 4140 alloy steel and hardened to Brinell 271, it resists deformation and wear in repetitive use, making it ideal for CNC machinery, linear actuators, and heavy-duty automation systems. The Class 2C thread fit and fully threaded right-hand design ensure tight tolerances and smooth engagement with nuts, reducing backlash and enhancing positioning repeatability. With a travel distance of 0.2" per turn and ±0.009" per ft. accuracy, it delivers consistent performance in applications like material handling, packaging equipment, and precision assembly lines, where reliability and long-term durability are paramount.

Specification Summary & Compliance

This lead screw adheres to Class 2C thread fit standards for precise Acme threading, with a travel accuracy of ±0.009" per foot. It is manufactured from hardened 4140 alloy steel and features a black-oxide surface treatment for enhanced corrosion resistance. Compliance includes RoHS 3 (2015/863/EU), ensuring it meets environmental regulations for industrial components.