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Shaft Diameter 1/4” nominal
Flat On Shaft 0.80 long x 0.03 deep
Shaft Loading up to 5 lbs. axial and 8 lbs. radial
Shaft Runout 0005 T.I.R. maximum
Starting Torque at 25°C  0.07 in-oz typical, 0.12 in-oz maximum without sealed bearings;
0.50 in-oz typical, 1.0 in-oz maximum with sealed bearings
Bearings Class ABEC 5
Shaft Material 416 stainless steel
Bearing Housing Die cast aluminum with iridite finish
Cover Drawn aluminum, 0.060” wall, protective finish standard. Die cast aluminum with protective finish for EM, SM, ECS and SCS terminations
Bearing Life 1 X 109 revs (6,700 hrs at 2500 RPM)
Maximum RPM 10,000 RPM
Moment of Inertia 4.1 x 10-4 oz-in-sec2
Weight 13 oz. typical
Code Incremental
Cycles per Shaft Turn 1 to 28,800
Voltage/Output 15V/V: Line Driver, 5–15 VDC in, Vout = Vin
28V/V: Line Driver, 5–28 VDC in, Vout = Vin
28V/5V: Line Driver, 5–28 VDC in, Vout = 5 VDC
28V/OC: Open collector, 5–28 VDC in, OCout
Current Requirements TTL: 175 mA maximum 125 mA typical
Output Format 2 channels in quadrature = 27º electrical typical.
Optional index is typically gated 1/2 cycle wide (see datasheet)
Protection Level Reverse, overvoltage and output short circuit (4469, 7272 only
Frequency Response 100 KHz (see note 7), up to 800 KHz with interpolation option
Output Terminations (see datasheet, Table 1)


Enclosure Rating NEMA 2 (IP43)
Temperature Operating, 0º to 70º C; extended temperature testing available (see note 8); storage; -25º to 90º C
Shock 50 g’s for 11 msec duration
Vibration 5 to 2000 Hz @ 20 G's
Humidity 98% RH without condensation