S-93410A948 7/8"-6 x 12" ASTM A193 Acme Lead Screws and Nuts

Acme Lead Screws and Nuts

1456FA00235 Acme Lead Screws and Nuts
1456FA00235 Acme Lead Screws and Nuts

Image may differ from product. See technical specification for details.

Part No.
Part No. 1456FA00235
Equivalent to mcmaster :
93410A948

Basic Information

Component Lead Screw
Material Alloy Steel
Hardness Rockwell C35
RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2022, 223 SVHC) Compliant
Specifications Met ASTM A193

Thread Parameters

Thread Type Acme
Thread Direction Right Hand
Thread Size 7/8"-6
Threading Fully Threaded
Thread Fit Class 2G
System of Measurement Inch

Dimension Parameters

Length 12"

Lead Screw Specific Parameters

Number of Thread Starts 1
Travel Distance per Turn 0.167"
Speed Ratio 1:1

Load & Performance Parameters

Tensile Strength 125000 psi
Fastener Strength Grade/Class ASTM Grade B7
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Precise Motion Control: Delivers consistent 0.167" travel per turn for accurate positioning in automated systems.
  • Exceptional Strength & Durability: Made from alloy steel with 125,000 psi tensile strength and Rockwell C35 hardness to withstand high-load applications.
  • Superior Thread Reliability: Class 2G thread fit ensures smooth engagement and reduced wear with compatible nuts.
  • Robust Material Certification: Complies with ASTM A193 and meets ASTM Grade B7 specifications for high-stress environments.
  • Optimized for Industrial Use: Fully threaded ACME design with a right-hand, single-start thread provides reliable power transmission.
  • Environmental Compliance: RoHS 3 and REACH compliant, ensuring safety and regulatory adherence for global markets.
  • Direct 1:1 Drive Efficiency: Simple speed ratio allows for straightforward integration into motion control systems.

Professional Applications & Engineering Value

This 7/8-6 ACME lead screw is engineered to solve critical challenges in precision motion control systems, such as CNC machinery, linear actuators, and heavy-duty positioning equipment. The alloy steel construction, combined with the ACME thread type and Class 2G thread fit, minimizes backlash and ensures long-term durability under repetitive loads. Its fully threaded design and right-hand thread direction provide consistent force transmission, making it ideal for applications requiring reliable, high-strength linear motion. By meeting ASTM A193 and Grade B7 standards, it offers engineers a trusted component that reduces maintenance needs and enhances system uptime in demanding industrial settings.

Specification Summary & Compliance

This lead screw adheres to precise dimensional standards, including a Class 2G thread fit for optimal performance with mating nuts. It conforms to ASTM A193 and ASTM Grade B7 specifications, ensuring material integrity and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting its use in environmentally conscious and regulated industries.

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