S-98935A846 7/8"-6 x 3 ft. ASTM A108 Acme Lead Screws and Nuts

Acme Lead Screws and Nuts

1456FA00692 Acme Lead Screws and Nuts
1456FA00692 Acme Lead Screws and Nuts

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

Part No.
Part No. 1456FA00692
Equivalent to mcmaster :
98935A846

Basic Information

Component Lead Screw
Material Carbon Steel
Hardness Rockwell B61
RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2022, 223 SVHC) Compliant
Specifications Met ASTM A108

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 3 ft.

Lead Screw Specific Parameters

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

Load & Performance Parameters

Tensile Strength 64000 psi
Fastener Strength Grade/Class Grade 2
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 with 0.167" travel per turn for accurate positioning in automated systems
  • High Load Capacity thanks to Grade 2 carbon steel construction and 64,000 psi tensile strength
  • Superior Wear Resistance with Rockwell B61 hardness for extended service life in demanding applications
  • Reliable Thread Engagement through Class 2G thread fit that ensures smooth operation with minimal backlash
  • Optimized Power Transmission via single-start ACME thread design for efficient force transfer
  • Full-Length Versatility with 3-foot fully threaded design allowing for flexible mounting and positioning
  • Industry Compliance Assurance meeting ASTM A108 standards for consistent quality and performance

Professional Applications & Engineering Value

This 7/8-6 ACME lead screw delivers exceptional value in precision motion control systems where reliability and accuracy are paramount. Engineered from Grade 2 carbon steel, it provides the ideal balance of strength and machinability for industrial automation, CNC equipment, and linear actuation systems. The fully threaded right-hand design with single-start configuration ensures predictable movement and consistent force transmission, while the 0.167" travel per turn offers precise positioning control. The ACME thread form is specifically designed to handle high thrust loads with minimal friction, making it superior to standard threaded rods for applications requiring repeated, accurate linear motion. This combination of material properties and thread engineering solves critical challenges in manufacturing environments where component failure can lead to costly downtime.

Specification Summary & Compliance

This inch-system ACME lead screw features precise Class 2G thread fit tolerances and 7/8"-6 thread size with right-hand threading. Manufactured to ASTM A108 specifications, it delivers consistent dimensional accuracy and mechanical properties. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. With 64,000 psi tensile strength and Rockwell B61 hardness, this lead screw meets rigorous industrial standards for durability and performance.

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