Special Features
Material - 9310 consumable electrode vacuum melted steel per sundstrandms-10-1-01; heat treat - carburized, ball threads to be hardened rw/e 58-62 per bpp-h-200, core rw/e 37 min.; ballthread data - ball diameter .390, threads per inch 2 1/16 rh, helix angle 1 degrees 15 ft 49 in.; external involute spline data diametral pitch 8/16, pressure angle 30 deg, number of teeth 51, pitch diameter 6.3750, major ida 6.4710/6.4660, minor diameter 6.2210/6.2030, base diameter 5.5209, form diameter 6.2372, meas over pins 6.7477/6.7374, pin diameter .2400; circular tooth thickness - max effective .1944, min actual .1901, max actual .1920, mineffective .1925
