PMB33F-20201-03
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The Pacific Scientific PMB33F-20201-03 belongs to the PMB Brushless Servomotors series and features a linear ball bearing design. It has a bore diameter of 20 mm, a length of 45 mm, and a static load rating of 2,050 N. The servomotor operates in temperatures ranging from -20°C to +80°C and weighs 90 grams.
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Product Description:
PMB33F-20201-03 is a synchronous servo motor. It is produced by Pacific Scientific and works in combination with a SC9x4 series servo drive. Motor parameters for PMB33 motors include 4.52 Nm continuous stall torque, 16.1 Nm peak torque, 0.00404 kg m2 rotor inertia, 0.169 Nm maximum static friction, 0.038 Nm/kRPM viscous damping coefficient, 0.78 ⁰C/W thermal resistance, 32 minutes thermal time constant, and 6.3 kilograms motor weight. For motors with F-type windings, the torque constant is 0.60 Nm/A, the voltage constant is 0.37 V/rad/s, the continuous stall current is 9 Amps, the peak torque current is 27.1 Amps, the line-to-line resistance is 0.96 Ohms, the line-to-line inductance is 2.8 mH, and the rated torque is 4.05 Nm at 240 Volts AC (320 Volts DC bus voltage). The shaft on the PMB33F-20201-03 motor is designed with a square key.
The shaft is fitted with an optional seal. The motor is also equipped with an optional PTC thermistor. This is a temperature sensor installed to monitor the motor winding temperature. It is designed to alert the servo drive if an overload causes the windings to overheat. In such instances, the servo drive can shut off the motor to protect it from damage. Feedback device on the motor is a Hall sensor. Connections for power and feedback are in the form of 18 inch flying leads with MS connectors. This IP40 rated motor has a housing with a flange for mounting. Size of the motor flange is 3.38 inches. Each flange has four holes for mounting screws. The motor must be handled by qualified professionals. Improper handling can void the warranty and cause equipment damage and injury to personnel.
Frequently Asked Questions about PMB33F-20201-03:
Q: How can you mount the motor?
A: The motor has a flange for mounting.
Q: Which cooling method does the motor use?
A: The motor cools via self-cooling.
Q: What is the no-load motor speed?
A: The no-load motor speed is 5700 RPM.
Q: What is the current at peak torque?
A: The current at peak torque is 21.2 Amps.
Q: Which drive is compatible with the motor?
A: The SC9x4 series of drives can be used with the motor.
