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GECKO MATCHED SERVO MOTORS
WITH HEDS ENCODER
Skewed Rotor Design
These are actual servo motors, not just a DC motor
with an encoder on it. The marked difference is in
the skewing of the rotor resulting in avery low cogging
which makes these servos suitable for high resolution
applications such as tight tolerance CNC machining.
Like all of our motors, they are very well made.
The high quality HEDS-9100 optical encoder comes
mounted on the rear shaft of the motor.
The electrical specifications of these motors were devised
to work specifically with Geckodrives but work with any
brush type servo drives with appropriate electrical parameters.
Shaft diameter is 1/2".
Encoder Options
The encoder unit comes in standard plastic or with a protective metal housing. Both options are available
with a choice of 250 or 500 lines.
The metal encoder housing is CNC machined, black anondized and comes completely installed with a
convenient DB-9 Female connector.
Nema 34 850 oz/in Peak Torque 72VDC Servo
$235.00 with Metal-Housed Encoder
$199.00 with Standard Encoder
$159.00 without Encoder
SPECIFICATIONS:
- skewed rotor design
- continuous torque: 170 oz/in
- peak torque: 850 oz/in
- terminal voltage: 72 VDC
- continuous current: 8.5A
- peak current: 38A
- inertia: 3.39 kg.cm^
- maximum operating speed: 4200 rpm
- torque constant (KT): .1757 N. m/am
- voltage constant (KE): 15.71 volts/100 rpm
- resistance: 85 ohm
- inductance: 2.35 mH
- weight: 8.8 lbs
- 7 inches
Scope Diagnostic at 72 VDC with 500CPR Encoder
The scope trace shows how quickly the motor responds to a command to reverse from 400 rpm
CW to 400 rpm CCW.
The green trace is motor current taken with a Tektronix current probe. Note the current limited
at 21A. The yellow trace shows the position error in response to the instantaneous reversal
command. The motor reverses direction and catches up to where it should be in less than
0.025 seconds.
The motor generated 1058 watts (about 1.4 HP) while reversing in that brief period of time.
Nema 23 350 oz/in Peak Torque 60VDC Servo
$150.00 with Encoder
$105.00 without Encoder
SPECIFICATIONS:
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