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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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