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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.

产品介绍

Miniature Lead Screw Configurations
Diameters 2 to 4 mm
Leads 0.375 to 4 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
Nominal Diameter [mm (in)] 2 (0.079) 3 (0.118) 4 (0.157)
Root diameter [mm (in)] 1.54 (0.061) 2.39 (0.094) 2.68 (0.106)
Lead accuracy [µm/25 mm (µin/in)] 6.25 (250)
Straightness 0.05 (0.002)
Thread form M profile M profile modified trapezoidal
Thread direction right hand
Max. screw length (not including oversized journal or integrated coupler [mm (in)] 150 (5.9)
Max. speed [RPM] 1000
Max. iput torque integrated coupler [N-m (oz-in)] 0.71 (100)
Material 17-4 stainless steel
Weight 26 (0.02) 40 (0.04) 70 (0.06)
Lead Nut
Drag torque [mN-m (oz-in)]
standard nut
anti-backlash nut		 free wheeling
3.5 (0.5)
Dynamic load capacity [N (lbf)]
standard nut
anti-backlash nut		 8.9 (2) 22.2 (5) 44.5 (10)
4.4 (1) 11.1 (2.5) 22.2 (5)
Min. life [rev s]
standard nut
anti-backlash nut		 100 million
50 million
Max. temperature [°C (°F)] 82 (1800)
COF 0.10-0.15
Efficiency % 40 to 85
Positional repeatability [mm (in)]
standard nut
anti-backlash nut		 0.058 (0.0023) 0.058 (0.0023) 0.064 (0.0025)
0
Positional repeatability [mm (in)]
standard nut
anti-backlash nut		 0.013 - 0.058
(0.0005 - 0.0023)		 0.013 - 0.058
(0.0005 - 0.0023)		 0.013 - 0.058
(0.0005 - 0.0023)
< 0.013
Material bearing grade PEEK

 

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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