DOUBLE CUP SAPPHIRES

Double cup sapphire: -  Similar to the single cup sapphire, but has an additional cupped recess.  This allows the pivot to be re-centered more effectively when the instrument has been jolted and the pivot has lost contact with the radius of the lower cup.

Typical applications: -  Energy meters, Water meters, Navigational compasses.

Type

Diameter 'A' Thickness 'B' Recess Depth 'C'  Recess Width 'D' Radius 'R'
S11 3.74 2.24 0.92 2.73 0.79
S12 3.74 2.24 0.92 2.54 0.50
S13 4.00 2.00 0.78 2.84 0.96
S14 3.00 1.50 0.66 2.40 0.50
S15 3.50 2.00 0.66 2.40 0.76
S16 3.43 1.65 0.50 2.97 0.96
S17 3.26 1.50 0.50 2.85 1.50

All dimensions in millimetres

Other sizes available upon request

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