S-91808A119 1 1/8"-5 Acme Lead Screws and Nuts
Acme Lead Screws and Nuts
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Basic Information
Thread Parameters
Dimension Parameters
Lead Screw Specific Parameters
Nut Parameters
Load & Performance Parameters
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Key Features & Benefits at a Glance
- Superior load handling with 64,000 psi tensile strength for reliable performance in demanding mechanical systems
- Exceptional durability from Grade 2 carbon steel construction and Rockwell B85 hardness rating
- Precision left-hand thread engagement with Class 2G fit ensuring smooth, backlash-resistant operation
- 0.2" travel per turn provides consistent linear motion control for industrial applications
- Standard hex design enables easy installation and maintenance with common tools
- Environmental compliance with RoHS 3 and REACH regulations for safe use in regulated industries
- Optimized for heavy-duty service through ACME thread profile design offering superior wear resistance
Professional Applications & Engineering Value
This left-hand Acme hex nut delivers critical performance advantages in industrial motion control systems where reverse-thread operation prevents unintended loosening under vibration. The Grade 2 carbon steel construction provides excellent strength-to-weight ratio while the Class 2G thread fit maintains precise engagement with lead screws in automated equipment, CNC machinery, and lifting mechanisms. The ACME thread form specifically addresses common power transmission challenges by distributing load across multiple thread surfaces, significantly reducing wear and extending service life in high-cycle applications. With 0.2" travel per turn, engineers achieve predictable linear motion in positioning systems, while the left-hand thread direction creates fail-safe configurations in rotating assemblies.
Specification Summary & Compliance
This 1 1/8"-5 left-hand Acme hex nut features Class 2G thread fit per ASME B1.5 standards, ensuring proper clearance for smooth operation. Manufactured from Grade 2 carbon steel with Rockwell B85 hardness, it delivers 64,000 psi tensile strength for demanding applications. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for hazardous substance restrictions.
