S-98940A413 3/4"-6 x 6 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional travel accuracy (±0.009" per ft.) ensures precise positioning and repeatable linear motion in automated systems.
• High tensile strength (125,000 psi) from hardened 4140 alloy steel provides reliable load-bearing capacity and resistance to deformation under stress.
• Superior wear resistance with Brinell 271 hardness and black-oxide surface treatment prolongs service life in demanding industrial environments.
• Left-hand Acme threading offers design flexibility for reverse motion applications where standard right-hand threads are unsuitable.
• Consistent 0.167" travel per turn delivers predictable linear movement for accurate speed and position control.
• Class 2C thread fit maintains proper clearance for smooth operation with matching nuts while accommodating minor misalignments.
• RoHS 3 compliance ensures environmental regulatory adherence for global manufacturing and integration.

Professional Applications & Engineering Value

This precision Acme lead screw solves critical engineering challenges in industrial automation and motion control systems. The hardened 4140 alloy steel construction combined with black-oxide coating provides exceptional durability against abrasion and corrosion, making it ideal for CNC machinery, lifting equipment, and precision positioning systems. The left-hand Acme thread configuration enables unique mechanical arrangements where reverse linear motion is required, while the fully threaded 6-foot length offers installation flexibility. With its high tensile strength and consistent travel accuracy, this component delivers reliable performance in applications demanding precise linear movement under substantial loads, reducing maintenance needs and improving system longevity.

Specification Summary & Compliance

This lead screw features 3/4"-6 left-hand Acme threading with Class 2C thread fit tolerances, ensuring proper clearance for smooth operation. Manufacturing specifications include ±0.009" per foot travel distance accuracy, 0.167" travel per turn, and single thread start design. The component is fully compliant with RoHS 3 (2015/863/EU) environmental regulations and meets industrial standards for precision linear motion components.