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Shaft Diameter 3/8” nominal (1/2” as special feature)
Flat On Shaft 3/8” Shaft: 0.80 long X 0.03” deep; 1/2” Shaft: 0.80 long X 0.04” deep (1/2’’ shaft w/flat must
be ordered as special feature)
Shaft Loading 3/8” shaft: Up to 40 pounds axial and 35 pounds radial; 1/2” shaft: Up to 90 pounds axial and
80 pounds radial
Shaft Runout 0.0005 T.I.R. at midpoint regardless of shaft diameter
Starting Torque at 25°C Without shaft seal 1.0 in-oz (max); With shaft seal 2.5 in-oz (max); 1/2” shaft with shaft seal:
3.5 in-oz (max)
Bearings Class ABEC 7 standard, ABEC 5 for 1/2” shaft
Shaft Material 416 stainless steel
Bearing Housing Die cast aluminum with protective finish; stainless steel (special feature)
Cover Die cast aluminum; stainless steel (special feature)
Bearing Life 2 X 108 revs (1300 hrs at 2500 RPM) at rated load 1 X 1010 revs (67,000 hrs at 2500 RPM) at
10% of rated load
Maximum RPM 12,000 RPM nominal, 8000 RPM with 1/2” shaft (see Frequency Response, below) 30,000 RPM
available on units with 3/8” shaft—consult with factory
Moment of Inertia 4.1 X 10-4 oz-in-sec2; 5.2 X 10-4 oz-in-sec2 with 1/2” shaft
Weight 13 oz typical, 14.5 oz typical with 1/2” shaft
Code Incremental
Output Format 2 channels in quadrature, 1/2 cycle index gated with negative B channel
Cycles per Shaft Turn 1 to 72,000 (see table 2) For resolutions above 3,600 see BEI for interpolation options
Supply Voltage 5 to 28 VDC available
Current Requirements 100 mA typical +output load, 250 mA (max)
Voltage/Output (see note 5)
15V/V: Line Driver, 5–15 VDC in, Vout = Vin
28V/V: Line Driver, 5–28 VDC in, Vout = Vin
28V/5: Line Driver, 5–28 VDC in, Vout = 5 VDC
28V/OC: Open Collector, 5–28 VDC in, OCout
Protection Level Reverse, overvoltage and output short circuit (see note 5)
Frequency Response 100 kHz, up to 1MHz with interpolation option (see note 7)
Output Terminations See Table 1
Note Consult factory for other electrical options
Enclosure Rating NEMA 4 & 13 (IP 66) when ordered with shaft seal (on units with an MS connector) or a cable
gland (on units with cable termination).
Temperature Operating, 0º to 70º C; extended temperature testing up to 105°C available; Storage, -25º to
90º C unless extended temperature option called out.
Shock 50 g’s for 11 msec duration
Vibration 5 to 2000 Hz @ 20 g’s
Humidity 98% RH without condensation