Pitch Diameter Ferrules

Pitch Diameter Ferrules

The ferrule helps to shield the arc from the operator, it minimizes the atmosphere that the flux must purge, the ferrule helps form the molten metal into the fillet, while allowing the fillet vents allow weld gases to escape. Ferrules are disposable items and as disposable items they are mass manufactured quickly and inexpensively. Ferrules are cast in a mold out of a low grade moldable ceramic, then taken out of the mold and dried. Due to this manufacturing method, ferrule tolerances can be greater than machining or other manufacturing processes. Therefore, it is not recommended to fixture off of a ferrule when exact location is required.

Pitch Diameter Ferrules

Ferrule P/NThrough Hole Dia +.015/-.000Grip Dia ± .010Base Dia ± .015Overall Height ± .015Grip Height ± .015Fillet Dia +.015/-.000Fillet Height +.015/-.000
25P.222.380.455.250.125.290.110
31P.280.445.535.250.125.360.125
37P.340.505.595.264.125.406.125
43P.395.585.675.329.156.468.142
50P.462.650.740.362.156.550.172
62P.585.785.905.433.156.685.172
75P.6951.0301.150.526.187.813.250
87P.8151.2101.330.593.187.960.250
1P.9551.4101.525.660.1901.105.355
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