MIL-DTL-24643C
ROTATING
MOTOR DRIVEN
CYLINDER
ATTACHED TO ASSURE MOTOR
SHUT-OFF WHEN RELAY
ACTIVATES (AS BY PLACING
IN SERIES WITH MOTOR
ELECTRICAL POWER SOURCE.)
CYLINDER
NORMALLY CLOSE
DIR OF
LATCHING RELAY
ROTATION
180° +/- 2
TO ELEC
WIPER ON
CYLINDER
FIXED SURFACE
8 IN. +/- 1/8
ABRADING ELEM
(ONE OF TWO)
CLAMP TO HOLD
ABRADING ELEM
(ONE OF FOUR)
CLAMP OR OTHER MEANS
COUNTER
SPEC
TO ATTACH SPECIMEN
END TO FIXED SURFACE
V
WEIGHT: 1 LB +/- .5 OZ
SOURCE
SPEC CNDCT
12V
MINIMUM
SH 131362
FIGURE 2. Diagram of abrading machine for the abrasion resistance test.
CENTERLINE TO BE TANGENTIAL WITH
ABRADING
CYLINDER SURFACE +/- 0.003 INCHES
ELEMENT
C
L
CYLINDER SURFACE
0.3085 IN.
MINIMUM
FIGURE 3. Detail diagram of abrading element fit on cylinder surface.
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