Precision Shafts & Precision Jewel Pivots

The shape and type of precision pivots used is determined by the operating conditions, the type of jewel bearing, and other design factors involved in suspending the moving element in the system. Cylindrical precision pivots can be supported by any of the ring jewel designs and combinations. End thrust may be taken by having a shoulder on the pivot ride on the polished face of the ring jewel bearing or by using an endstone bearing to take the thrust from precision pivots with rounded ends. Pivot Design Aids

Model Diameter Length Radius Angle Material Type
N-1D .0156/.0160 485/.495" .00098/.0012" 50° Nivapoint Double End Pivot
N-2S .0227/.0230" .065/.085" .00075/.00080" 47° Nivapoint Single End Pivot
N-3S .0195/.0205" .123/.127" .0008/.0012" 45/55° Nivapoint Single End Pivot
N-5AS .0195/.0197" .120/.130" .0016/.0020" 40° Nivapoint Single End Pivot
N-6S .0197/.0200" .120/.130" .0009/.0011" 53/57° Nivapoint Single End Pivot
N-7D .075/.081" 1.050" .0009/.0011" 53/57° Nivapoint Double End Pivot
N-7D .050/.053" 1.050" .0009/.0011" 53/57° Nivapoint Double End Pivot
N-8S .0320/.0325" .118/.124" .001/.002" 50° Nivapoint Single End Pivot
N-9S .0405/.0407" .190/.210" .003/.004" 48/52° Nivapoint Single End Pivot
ST-10S .0453/.0457 Major - 0260/.0262 Minor .7187" .015/.025" .015/.025" Stainless Steel Single End Pivot
ST-11D .0308/.0311" .310/.330" .016/.025" .015/.025" Stainless Steel Double End Pivot
ST-12S .0260/.0262" .220/.226" .015/.025" N/A Stainless Steel Single End Pivot
ST-13S .1242/.1247" .370/.385" .016/.025" .015/.025" Stainless Steel Single End Pivot
ST-15S .0497/.0498" .372/.378" .065/085" .075" Stainless Steel Single End Pivot
ST-1D .0397/.0403" .155/.165" .00069/.00089" 70° Stainless Steel Double End Pivot
ST-2D .0397/.0403" .365/.375" .00069/.00089" 50° Stainless Steel Double End Pivot
ST-3D .0397/.0403" .646/.666" .00069/.00089" 50° Stainless Steel Double End Pivot
ST-4D .0657/.0660" .661/.681" .0010/.0012" 60° Stainless Steel Double End Pivot
ST-5S .040/.041" .135/.145" .0010/.00125" 47° Stainless Steel Single End Pivot
ST-6S .027/.033" .122/.127" .002/.003" 45/55° Stainless Steel Single End Pivot
ST-7D .0496/.0501" .395/.405" .002/.004" 52/54° Stainless Steel Double End Pivot
ST-8D .0657/.0660" .661/.681" .00275/.00325" 50° Stainless Steel Double End Pivot
ST-9S .085/.090 Major - .055/.065 Minor .245/.255" .008/.012" 40/45° Stainless Steel Single End Pivot
Precision Shafts & Pivots Diagrams
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