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Miniature Lead Screws

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Miniature Lead Screws

產品介紹

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

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