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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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