EG METAL Co.,LTd

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Design Specification
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1. Dimensional tolerance

Dimensional Range (DIM.) General Tolerance (TOL.) Special Tolerance (TOL)
1 ~ 12 mm ± 0.2 mm  ± 0.13 mm
13 ~ 25 mm ± 0.25 mm  ± 0.15 mm
26 ~ 50 mmm ± 0.35 mm  ± 0.2 mm
51 ~ 75 mm ± 0.5 mm  ± 0.25 mm
76 ~ 100 mm ± 0.7 mm  ± 0.3 mm
101 mm or more ± 0.75 %  ± 0.35 %


2. Angle tolerance

Shape General tolerance Special tolerance

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 ± 1° ± 1/2°

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 ± 2° ± 1°

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 ± 2° ± 1°


3. Flatness and Straightness Equal to the above dimensional tolerances

4. Concentricity management
- Typical concentricity management within 0.13 mm (0.05 ") per 25.4 mm (1")
- The amount of shaking is reflected in the deviation of the straightness if the length exceeds twice the inner and outer diameters, respectively.


5. Roundness

Diameter Sum of measurements
0 ~ 12 mm 0.25 mm
13 ~ 25 mm 0.35 mm
26 ~ 50 mm 0.50 mm
Additional tolerances apply when more than 50 mm


6. Weight and size limits

Weight Size
Max. 100kg 1000 x 1000 x 1000 mm



7. Minimum corner radius

Metal Nonferrous metal
0.3 mm 0.18 mm



8. Surface roughness

Metal Nonferrous metal
90 ~ 125 RMS 63 ~ 100 RMS



9. Recommended shape reference

1) Depth of hole recommended dimensions
Dia. Or Sq. Clogged hole depth Through hole depth
2 ~ 4 mm h < dx0.6 H < Dx1.0
5 ~ 6 mm h < dx1.0 H < Dx2.0
7 ~ 10 mm h < dx1.6 H < Dx3.0
11 mm or more h < dx2.0 H < Dx4.0
Shape

       
         
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2) Recommended dimensions of SLOT
If w> 3.0 mm (.120 ") and
When ℓ> 2w ℓ<2wWhen
h < 2w h < 3w
※ When h is less than 1.0 mm, the minimum value of w is recommended to be more than 1.3 mm (0.051 ")

 

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3) Avoid sharply reducing thickness


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4) Designed for easy separation
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5) Avoid sharp edges

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6) Avoid angled corners

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7) Embossing is recommended rather than engraving.
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8) Designed so that the intersecting parts do not gather together

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