PMB33E-10101-03
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The PMB33E-10101-03 is a ball bearing with chrome steel construction and a compact outer diameter of 33 mm. Manufactured by Pacific Scientific under the PMB Brushless Servomotors series, it weighs just 0.045 kg and features a metal-shielded seal. It has a dynamic load rating of 6500 N.
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Product Description:
The PMB33E-10101-03 is Pacific Scientific’s servo motor with a rotor rotational inertia of 0.404 ×10⁻³ kg·m² to minimize speed lag during transitions and enable more rapid dynamic movement. This motor provides a continuous stall torque of 5.42 Nm for extended holding without heat buildup and maintains mechanical engagement even under extended duty cycles.
For peak load applications, the PMB33E-10101-03 motor can provide a maximum of 16.1 Nm of torque for vigorous mechanical response during acceleration or short-duration high-force situations. This motor’s peak static drag torque of 0.169 Nm maintains low idle resistance and enables smooth low-speed transitions with no parasitic vibration or mechanical friction. This servo motor has a heat dissipation rate of 0.78 °C/W, which provides a gradual temperature rise during loading and shields internal components from overheating. The thermal response time of 32 minutes enables this motor to sustain efficient operation over longer operational cycles before thermal saturation is achieved. This brushless motor can supply a torque of 0.93 Nm/Arms, which means high torque generation for every ampere of supplied current.
The rate of this brushless motor’s voltage generation is 0.56 Vrms/rad/sec to allow the output of a stable voltage relative to shaft speed, essential for accurate feedback in closed-loop systems. This servo motor also has a continuous stall current of 5.8 Arms and a maximum current capability of 17.5 Arms to facilitate flexible operation on both constant and dynamic loads. The line-to-line resistance of this motor is 2.2 Ohms, which assists in limiting energy losses and ensuring steady electrical input when operated at full load. With a nominal speed of operation of 3,000 RPM, the PMB33E-10101-03 brushless motor enables fast and precise positioning to meet high-speed industrial motion demands.
Frequently Asked Questions about PMB33E-10101-03:
Q: How does the 0.404 ×10⁻³ kg·m² inertia value benefit motion control?
A: It minimizes overshoot and enables fast acceleration and deceleration cycles. This is crucial in dynamic positioning systems.
Q: Why is a heat dissipation rate of 0.78 °C/W important in PMB33E-10101-03?
A: It ensures the motor can operate under load without rapid thermal rise. This supports longer duty cycles and prevents thermal shutdown.
Q: What role does the 0.56 Vrms/rad/sec voltage constant play in performance?
A: It allows consistent back EMF generation for accurate feedback. This supports precision in speed and torque control loops.
Q: How does the 2.2 Ohm line-to-line resistance affect the motor's efficiency?
A: Higher resistance limits current draw and helps reduce energy losses. It also contributes to better thermal stability in long runs.
Q: Why does PMB33E-10101-03 require a peak current of 17.5 Arms?
A: This allows the motor to handle momentary overloads or sudden torque demands. It helps in maintaining smooth performance during rapid load changes.
