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

.1875

2 HOLES EQ SP .109 DIA.

.125 DEEP ON "M" CONC. "D"

DIMENSIONS

SERVO-

COMPONENT

M 1/

SIZE

Inches (mm)

Inches (mm) Inches (mm)

Inches (mm)

11, 15, 18

2.0 (50.8)

.1875 (4.76)

.26 (6.60)

.1875 (4.76)

.375 (9.53)

2.0 (50.8)

.3125 (7.94)

.60 (15.24)

.2410 (6.12)

.437 (11.10)

31, 37

2.7 (68.6), 3.3 (83.8)

.3125 (7.94)

.60 (15.24)

.2410 (6.12)

.437 (11.10)

1/ For mounting with standard drive washer.

FIGURE 1A. Standard disc for loading size 11, 15, 18, 23, 31, and 37 servocomponent shaft.

3 SOCKET SET SCREWS

1.00

4-40 UNC-2A X .25 LONG

.1875

3 HOLES EQUALLY SPACED

TAPPED 4-40 UNC-2B

SPLIT BRASS BUSHING, ID .0903 -.0.000

+0.0005

OD .150 TO BE TIGHT

PUSH FIT IN DISC BORE

FIGURE 1B. Standard disc for loading size 05 and 08 servocomponent shaft.