S-95365A343 1 1/4"-5 x 2 1/2" Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional wear resistance with Brinell 217 hardness cast iron construction for prolonged service life in demanding industrial environments.
• Precise linear motion control delivering a consistent 0.2" travel per turn for accurate and repeatable positioning.
• Superior thread engagement with a Class 2C fit that provides optimal clearance for smooth operation with ACME lead screws.
• Reliable left-hand thread operation for specialized applications requiring reverse-direction motion or locking mechanisms.
• Robust dimensional stability from its 3.734" diameter and 2 1/2" length, ensuring a secure fit in assembly.
• Guaranteed material safety with full compliance to RoHS 3 and REACH regulations, making it suitable for regulated industries.
• Simplified installation and maintenance with a single-start, round nut design for easy integration into linear motion systems.

Professional Applications & Engineering Value

This cast iron Acme nut is engineered to address critical challenges in linear motion systems, where durability and precision are paramount. The Brinell 217 hardness of the cast iron material significantly reduces wear, extending component life in high-cycle applications such as CNC machinery, industrial actuators, and precision positioning tables. Its left-hand Acme thread provides a reliable solution for applications requiring counter-directional movement or mechanical redundancy, preventing unintended loosening. The Class 2C thread fit ensures smooth, low-friction travel with minimal backlash, enhancing the accuracy of motion control systems. Designed for seamless integration, this nut helps minimize downtime and maintenance costs, delivering consistent performance in rigorous B2B and industrial settings.

Specification Summary & Compliance

This precision component adheres to inch system measurements with a thread size of 1 1/4"-5 and a Class 2C thread fit per standard Acme threading specifications, ensuring dimensional accuracy and compatibility. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated industries. The nut features a single-start, left-hand Acme thread type with a defined travel distance of 0.2" per turn, meeting the required engineering standards for reliable linear motion applications.