S-98935A452 3/4"-8 x 6 ft. ASTM A108 Acme Lead Screws and Nuts
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
- Precise 0.125" travel per turn ensures consistent linear motion control for automated systems
- Left-hand ACME thread design provides reliable performance in reverse-motion applications and prevents accidental loosening
- Grade 2 carbon steel construction delivers excellent strength-to-weight ratio with 64,000 psi tensile strength
- Class 2G thread fit maintains optimal clearance for smooth operation with minimal backlash
- Rockwell B61 hardness rating ensures superior wear resistance and extended service life
- 6-foot continuous length accommodates long-travel applications without requiring joints or couplings
- Fully threaded design allows for maximum flexibility in nut positioning along the entire screw length
Professional Applications & Engineering Value
This 3/4"-8 left-hand ACME threaded lead screw solves critical engineering challenges in industrial motion control systems. The Grade 2 carbon steel construction provides the ideal balance of strength and machinability, while the single-start ACME thread delivers predictable 0.125" linear movement per revolution for precise positioning. The left-hand threading is particularly valuable in applications requiring opposite-direction movement or where right-hand threads might loosen under vibration. Engineers specify this component for CNC machinery, lifting equipment, and automated positioning systems where consistent travel distance and reliable performance are paramount. The combination of ASTM A108 compliance and robust material properties ensures this lead screw withstands continuous operation in demanding industrial environments.
Specification Summary & Compliance
This precision lead screw features 3/4"-8 ACME left-hand threads with Class 2G thread fit tolerances, providing optimal clearance for smooth operation. Manufactured to ASTM A108 specifications from Grade 2 carbon steel, it delivers 64,000 psi tensile strength and Rockwell B61 hardness. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across various industrial applications.
