. QST . SHAFT COUPLINGS. Building it yourself? Then use JOHNSON couplings. Capableof many thousands of operating cycles without failure due tofatigue—manufactured with high quality, low loss metal parts accurately machined and suitably bronze springs on the -250 and -251 series shaftcouplings provide flexibility without backlash and adjust tominor shaft misalignments. Rigid types such as the -250 and-262 will meet requirements of accurate shaft alignment andhigh torque. The -259 Is a bar type shaft coupling recom-mended for high voltages or very high frequencie
. QST . SHAFT COUPLINGS. Building it yourself? Then use JOHNSON couplings. Capableof many thousands of operating cycles without failure due tofatigue—manufactured with high quality, low loss metal parts accurately machined and suitably bronze springs on the -250 and -251 series shaftcouplings provide flexibility without backlash and adjust tominor shaft misalignments. Rigid types such as the -250 and-262 will meet requirements of accurate shaft alignment andhigh torque. The -259 Is a bar type shaft coupling recom-mended for high voltages or very high frequencies—the-264 is a small bakelite insulated shaft coupling for DC orlow voltage RF applications. FLEXIBLE SHAFTS—Perfect for out-of-line or up to 90 degreeangular control — phosphor bronze, non-rusting flexibleshafts with Va nickel plated brass hubs. PANEL BEARING ASSEMBLIES—Panel bearings for Vashafts and rigid 3 and 6 nickel plated brass shafts assem-bled in panel bearings. Shafts are Va; bearings, furnishedcompl
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
