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    Miniature Lead Screws

    Miniature Lead Screws

    With diameters as small as two millimeters and optional anti-backlash nuts, Thomson miniature lead screws enable designers to achieve small-scale designs once considered impossible. Configurable, customizable and lean, these lead screws help reduce the size and weight of applications without compromising precision, life or function.

    產品介紹

    Click here to optimize your design with a custom lead screw and nut solution.
    Miniature Lead Screw Configurations
    Diameters 2 to 4 mm
    Leads 0.375 to 8 mm
    Lengths Up to 150 mm
    Drive End Integrated Coupler
    Oversized Journal
    Standard Journal
    Faced End
    Lead Nuts Flange Mount, Standard Backlash
    Flange Mount, Anti-Backlash
    Threaded Mount, Standard Backlash
    Compact Thread Mount, Standard Backlash
    Support End Faced End
    Bearing Journal

     

    Basic Specifications
    Lead Screw 2mm 3mm 4mm
    Major diameter [mm] 2 3 4
    Lead accuracy [mm/mm (in/in)] 0.0005 (0.0005)
    Straightness [mm (in)] 0.05 (0.002)
    Thread direction right hand
    Max. screw length [mm (in)] 150 (5.9)
    Max. speed [RPM] 1000
    Max. iput torque integrated coupler [N-m (oz-in)] 1.1 (150)
    Material stainless steel
    Weight [mg/mm (oz/in)] 26 (0.02) 40 (0.04) 70 (0.06)
    Lead Nut 2mm 3mm 4mm
    Drag torque for standard nut [mN-m (oz-in)] free wheeling
    Drag torque for anti-backlash nut [mN-m (oz-in)] 3.5 (0.5)
    Dynamic load capacity for standard nut [N (lbf)] 8.9 (2) 22.2 (5) 44.5 (10)
    Dynamic load capacity for anti-backlash nut [N (lbf)] 4.4 (1) 11.1 (2.5) 22.2 (5)
    Min. life for standard nut [revs] 200 million
    Min. life for anti-backlash nut [revs] 100 million
    Max. temperature [°C (°F)] 82 (180)
    Coefficient of friction 0.12-0.16
    Efficiency % 37 - 79
    Max. axial backlash for standard nut [mm (in)] 0.058 (0.0023) 0.058 (0.0023) 0.064 (0.0025)
    Max. axial backlash for anti-backlash nut [mm (in)] 0
    Positional repeatability for standard nut [mm (in)] 0.013 - 0.058
    (0.0005 - 0.0023)
    0.013 - 0.058
    (0.0005 - 0.0023)
    0.013 - 0.064
    (0.0005 - 0.0025)
    Positional repeatability for anti-backlash nut [mm (in)] < 0.013 (0.0005)
    Material bearing grade PEEK

     

    Product Availability
    Diameter [mm] Lead [mm]
    0.375 0.5 0.75 1 1.5 3 4 6 8
    2 ?   ?   ? ?      
    3   ?   ?   ?   ?  
    4       ?     ?   ?

    For all other lead screw availability, please see standard lead screw catalog. For any custom diameter and/or leads, please contact Thomson customer support for more information.

    Miniature Lead Screw Highlights:

    • Diameters as small as 2 mm
    • Optional anti-backlash design
    • Customizable end machining, special coatings, unique nut design, end configurations
    • Patent-pending integrated coupler for easy mounting

    Miniature Lead Screw Applications:

    • Handheld medical devices
    • Miniature XY linear stages
    • Micro grippers
    CAD模型
    2D/3D CAD Drawings
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