The smallest nut and lead screw in the world by TNK.
Lead screw size is 0.6~4.0mm. Our smallest nut and lead screw support your compact units and weight saving.
With our nuts and lead screws, the backlash can be adjusted to 2 μm or less, and excellent positioning accuracy can be achieved.
We have also developed "Sanwa Special Resin Nuts" for the low friction and high durability.
* Sanwa Special Resin: PPS (containing carbon fiber, etc.) [Patent pending]
It achieved running over 50km continuously loading 2.5 kg weight with a φ3 lead screw
unit.
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Minimal nut and screwOuter diameter:0.5mm Material:SUS420J2/NSSC550 Pitch:0.16 NutMaterial:PPS(TNK special resin) |
Big pitch screwOuter diameter:3mm Material:SUS420J2 Pitch:5(avove)、3(bottom) NutMaterial:PPS(TNK special resin) |
Small pitch screwOuter diameter:1、2、3、4mm Material:SUS420J2/ Pitch:0.5 Variety Nut materialMaterial:PA66、PPS(TNK special resin) |
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Grinding | Turning | Rolling | |
Tolerance |
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Outer diameter tolerance | ±0.002mm | ±0.02mm | ±0.02mm |
Flank surface roughness | Ra0.1 | Ra0.8 | Ra0.8 |
Single pitch error | 0.005mm | 0.01mm | 0.01mm |
Cumulative pitch error(10pitch) | 0.008mm | 0.02mm | 0.02mm |
Run out | 0.02mm or less | 0.05mm | 0.05mm |
Size |
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Outer diameter | φ0.5~20.0 | φ1.7~4.0 | φ1.7~3.5 |
Length | 3.5mm~200.0mm | 3.5mm~100.0mm | 10.0~70.0mm |
Shape | 40°~60° | 60° | 40°~60° |
Pitch | 0.15mm~3.00mm | 0.2mm~3.0mm | 0.2mm~3.0mm |
Material | Hard material, Hardened steel | Soft material | Soft material |