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MIL-DTL-81963 Servocomponents, Precision Instrument, Rotating, Common Requirements And Tests, General Specification ForThis specification covers common requirements and tests for analog, digital and analog/digital precision instrument rotating servocomponents \(synchros, electrical resolvers, electrical, linear resolvers, transolvers, shaft angle encoders, servomotors, tachometer-generators, servomotor-tachometer generators, stepping motors, and gear heads\). This specification will be used with the applicable general specification, which covers a particular class of servocomponents \(for example, synchros\), together with the documents and the specification sheet that cite MIL-DTL-81963 as a direct reference detailing the specific requirement for the individual servocomponent.

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MIL-DTL-81963C
DRILL 4 HOLES 0.109 DIA
ENGRAVE NUMBER
EQUALLY SPACED ON DIA "H"
0.125 HIGH
FASTEN HUB AND DISC TOGETHER
WITH FOUR 0-80 UNF-2A FILLISTER
HEAD SCREWS EQUALLY SPACED
ON DIA "N"
177
177
180
45°
DRILL 2 HOLES 0.0625 DIA ON "B" DIA
"C"
(USED FOR FRICTION TORQUE TESTS)
30
30
0
0.25
"A"
.016 ± .001
"B"
.047 ± .001
SEE DETAIL A
G
DISC
BREAK EDGE
HUB
"D"
"E"
0.031 RADIUS
"F"
DETAIL A
FIGURE 7. Dials for mechanical breakaway torque, synchronizing time, and spinning tests.
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