PMB33F-00116-01
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The PMB33F-00116-01 is a NEMA Size 34 brushless servomotor with a continuous stall torque of 5.42 Nm and a peak torque of 16.1 Nm. Manufactured by Pacific Scientific as part of the PMB Brushless Servomotors series, it features a digital encoder with commutation and a motor weight of 6.3 kg. This motor also offers 4096 ppr encoder resolution.
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Product Description:
The Pacific Scientific produces the brushless motor PMB33F-00116-01 with NEMA 34 frame size and a flat shaft design for direct mechanical coupling. Its shaft comes with a sealing ring for protection against environmental pollutants and it is 1.2695 cm in diameter. This motor is 21.030 cm in length and features a stack length of three for increased torque output.
The PMB33F-00116-01 motor includes flying leads for electrical connectivity, with AMP Mate-N-Lock connectors and its feedback is provided via a 4096 ppr digital encoder with commutation. The motor is constructed from eight magnetic pole pairs of Iron-Boron magnets for higher power density and it operates on a rated voltage of 240V AC. Its resistance between two terminals is 0.96 Ohms and it possess an inductance of 2.8 mH. The PMB33F motor has a turning effect constant 0.60 Nm/A and it produces a constant voltage of 0.37/rad/s. It provides a continuous torque of 5.42 Nm and operates at a rotational speed of 4600 RPM. This motor’s peak torque capability reaches 16.1 Nm during short load cycles and it supports a maximum speed limit of 6000 RPM, while it uses a steady current of 11.0 A and a peak current of 27.1 A in full load scenario. Its protection classification of IP40 makes it suitable for installation in controlled environments and it weighs 6.3 kg.
The PMB33F-00116-01 motor is designed with an angular inertia of 0.403 kg·cm² and its thermal resistance is 0.78 °C/W. It achieves thermal stability through natural process and its thermal dissipation time is measured as 1920 sec. The PMB33F motor’s damping factor stands at 0.038 Nm/kRPM and for smooth startups, it possesses a static friction value of 0.169 Nm.
Frequently Asked Questions about PMB33F-00116-01:
Q: How does the flat shaft design benefit the PMB33F-00116-01 motor?
A: The flat shaft enables direct mechanical coupling with precision equipment, reducing backlash and improving torque transmission consistency.
Q: Why is Neodymium-Iron-Boron used in the magnet construction of PMB33F-00116-01?
A: This magnetic material offers high energy density, allowing the motor to deliver powerful torque in a compact footprint, essential for space-limited systems.
Q: How does the AMP Mate-N-Lock connector help with motor wiring?
A: These connectors ensure secure, vibration-resistant electrical connections, enhancing reliability in dynamic industrial environments.
Q: What is the role of the sealing ring on the motor shaft of PMB33F-00116-01?
A: It protects the shaft interface from dust and moisture ingress, helping maintain long-term performance in semi-protected environments.
Q: How does the thermal resistance of 0.78 °C/W affect the PMB33F-00116-01 motor's performance?
A: It determines how efficiently the motor dissipates heat, allowing it to maintain thermal stability under moderate load conditions.
