Trapezoidal Lead Screw 8 mm Diameter, 350 mm Length — OEM

Trapezoidal lead screw with an 8 mm nominal diameter and a total length of 350 mm, designed for converting rotational motion into precise linear motion in mechanical systems. This OEM trapezoidal screw is intended for use in linear actuators, positioning mechanisms and equipment where controlled axial movement is required. The product is supplied without fixed end machining or fittings, allowing integration with a variety of nuts and supports depending on the application.

Advantages

This 8 mm trapezoidal lead screw provides reliable transmission of axial force and repeatable positioning with a compact profile. The trapezoidal thread form ensures good load distribution along the engaged surface, which reduces localized wear compared to square-thread alternatives. Its 350 mm length offers flexibility for medium-stroke applications while remaining compatible with common mechanical housings and couplings. As an OEM component, it can be adapted to different lead nut materials and end-support configurations.

Suitable for

• CNC axis drives for light-duty and hobby machines
• Linear motion in 3D printers and printer bed adjustments
• Actuators in laboratory equipment and test rigs
• Positioning stages and small automated mechanisms

Key specifications

• Nominal diameter: 8 mm
• Total length: 350 mm
• Thread type: trapezoidal profile
• Function: converts rotary motion to linear motion
• Typical applications: linear actuators, positioning systems, CNC and 3D printing mechanisms

How to use

Install the trapezoidal lead screw concentrically in the support bearings and couple it to a suitable drive motor or manual control. Select a compatible trapezoidal nut or anti-backlash nut matched to the screw profile and secure it to the moving carriage or fixture. Ensure end supports are aligned to prevent radial loads and bending; use flexible couplings where necessary to accommodate misalignment between motor and screw. Apply appropriate lubrication and inspect thread engagement during initial setup to verify smooth travel and correct preload of any anti-backlash components.

Usage recommendations

For best performance, pair the screw with a nut material suitable for the expected load and speed (for example brass or polymer for quieter operation, hardened bronze or steel for higher wear resistance). Maintain regular lubrication intervals, avoid excessive radial loads, and verify alignment after installation to extend service life and preserve positioning accuracy.