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In the absence of tolerances specified on a customer drawing, MCE uses standard tolerances. These are listed below, along with what is the best tolerances we can hold, however, at a higher cost.
Standard MCE tolerances and best possible are as follows:
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Linear Dimension |
Inches |
±0.5% or ±.005,
whichever is greater. |
±.000050" |
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Angular dimensions |
Degrees |
±2° |
±5 minutes |
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Perpendicularity |
Degrees |
±2° |
±5 minutes |
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Total Flux |
Maxwell-Turns |
±5% |
±0.5% |
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Residual Flux Density |
Gauss |
±5% |
±1.0% |
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Coercivity |
Oersteds |
Minimum as published |
±1000 Oe |
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Intrinsic Coercivity |
Oersteds |
Minimum as published |
±2000 Oe |
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Maximum Energy Product |
MGOe |
±2 MGOe of Nominal |
±0.25 MGOe |
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As tolerances are tightened and greater demands are imposed on achieving a "perfect" part, costs begin to escalate rapidly. Good engineering practices require taking costs into consideration to produce a viable product for a particular application. Please give careful consideration as to what you really need so that we can provide a competitive product for your application.
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