S-95365A347 1 1/2"-4 x 3" Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Precision reverse-motion control with left-hand ACME threads for reliable operation in counter-clockwise or reverse-direction applications
• Exceptional durability thanks to cast iron construction with Brinell 217 hardness, resisting wear in demanding industrial environments
• Consistent 0.25" linear travel per revolution for predictable positioning accuracy in automated systems
• Optimized thread engagement with Class 2C fit ensuring smooth operation while maintaining necessary clearances
• Round nut design provides uniform load distribution and compatibility with standard mounting configurations
• Environmental compliance assurance with RoHS 3 and REACH compliance for global industrial applications
• Standard inch measurement compatibility for seamless integration with North American industrial equipment

Professional Applications & Engineering Value

This 1 1/2"-4 ACME left-hand thread nut delivers critical engineering solutions where reverse-motion reliability is paramount. The cast iron construction with Brinell 217 hardness provides exceptional resistance to abrasion and deformation under continuous operation, making it ideal for heavy-duty industrial automation and machinery requiring precise backward movement. The ACME thread form combined with Class 2C thread fit ensures optimal performance in applications where controlled reverse threading prevents accidental disengagement, such as in clamping systems, precision positioning equipment, and safety-critical mechanisms. The 0.25" travel per turn offers predictable linear motion control essential for repeatable operations in manufacturing and assembly processes.

Specification Summary & Compliance

This precision ACME nut features 1 1/2"-4 left-hand threads with Class 2C thread fit per ASME B1.5 standards, ensuring proper clearances for smooth operation. The component maintains dimensional accuracy with 0.25" travel distance per revolution and 4.469" diameter round nut configuration. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming suitability for global industrial applications requiring restricted substance compliance.