S-98940A004 3/8"-8 x 6 ft. Precision Acme Lead Screws and Nuts
Precision Acme Lead Screws and Nuts
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Basic Information
Thread Parameters
Dimension Parameters
Lead Screw Specific Parameters
Load & Performance Parameters
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Key Features & Benefits at a Glance
- High-precision positioning with ±0.009" per foot accuracy for reliable motion control in automated systems.
- Exceptional durability from hardened 4140 alloy steel and Brinell 271 hardness, resisting wear in high-cycle applications.
- Superior load capacity with 125,000 psi tensile strength, ideal for demanding industrial machinery.
- Smooth, predictable travel of 0.125" per turn from the single-start Acme thread design, ensuring consistent feed rates.
- Corrosion-resistant surface thanks to the black-oxide coating, extending service life in various environments.
- Broad compatibility with Class 2C thread fit nuts, facilitating easy assembly and replacement.
- Environmental compliance with RoHS 3 standards, making it suitable for regulated industries.
Professional Applications & Engineering Value
This 3/8-8 ACME lead screw is engineered for precision motion control in industrial automation, CNC machinery, and linear actuation systems. The black-oxide 4140 alloy steel construction, combined with hardening, provides excellent resistance to abrasion and deformation under continuous operation. The fully threaded, right-hand Acme design with a precise 0.125" travel per turn ensures smooth, backlash-resistant movement, critical for applications requiring repeatable positioning. Its Class 2C thread fit offers optimal clearance for efficient engagement with matching nuts, reducing binding and wear. Ideal for use in packaging equipment, 3D printers, and medical devices, this screw delivers long-term reliability and ±0.009" per foot accuracy, minimizing downtime and maintenance costs.
Specification Summary & Compliance
This lead screw adheres to Class 2C thread fit standards, ensuring proper tolerance for smooth operation. It features a 3/8"-8 Acme thread with right-hand direction, fully threaded along the 6 ft length, and delivers a travel distance of 0.125" per turn with an accuracy of ±0.009" per foot. Manufactured from hardened 4140 alloy steel with a black-oxide finish, it meets RoHS 3 (2015/863/EU) compliance for environmental safety in industrial applications.
