PMB31D-10116-03
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The PMB31D-10116-03 is a servomotor manufactured by Pacific Scientific. As part of the PMB Brushless Servomotors series, it features a NEMA Size 34 motor frame and a max rated speed of 4400 RPM. The motor's continuous stall torque is 1.54 Nm, and it weighs 2.9 kg with flying leads and AMP connectors.
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Product Description:
The Pacific Scientific’s PMB31D-10116-03 motor is part of the PMB Brushless Servomotors series. It is designed for precision control in demanding motion applications. This motor offers high torque density and efficient operation. Its compact structure makes it suitable for a variety of industrial systems.
The PMB31D-10116-03 has a NEMA 34 frame size and a stack length of one. It has a motor length of 134.1 mm (5.28 inches). The motor has a round shaft, as indicated by shaft option code 1. As feedback, a commutative digital encoder with 4096 ppr is used. The winding code D provides a nominal stall current of 5.4 ARMS at 240V AC. Its continuous stall torque is 2.1 Nm (18.7 lb-in) and the continuous torque performance ranges from 1.6 to 1.7 Nm. The peak stall torque ranges from 4.9 to 6.2 Nm. The rated speed ranges between 5,000 and 5,750 rpm, depending on the drive used. The no-load speed can be up to 8,400 rpm. During stall, the motor draws approximately 5.1 ARMS. Current at peak torque ranges from 10.6 to 15.3 ARMS. Rotor inertia is measured at 0.137 ×10⁻³ kg·m². The bearings are double-shielded to increase life and save maintenance. The construction has an exposed lamination design that increases torque and power density. Flying leads with AMP connectors make electrical integration easier. The cable requirements are an 18 AWG shielded motor cable and a 26 AWG shielded feedback cable. Both cables must have a minimum length of 457 mm or 18 inches. The minimum bend radius is 57.2 mm (about 2.25 inches). Mounting is accomplished using four size #10 screws as indicated.
The PMB31D-10116-03 motor also has a shaft seal and a PTC thermistor for added protection. It has insulation class F certified to 155 °C. The protection level is IP40 as standard. Peak torque figures are valid for two seconds when using an AC drive. Line-to-line inductance is given as 5.2 mH. The magnet material is Neodymium Iron-Boron, which provides a high torque output. Regulatory compliance ensures global approval of system integration. The motor application includes medical devices, material handling, semiconductor manufacturing, and other light industrial operations.
Frequently Asked Questions about PMB31D-10116-03:
Q: How does the PTC thermistor enhance safety in the PMB31D-10116-03 Motor?
A: The PTC thermistor prevents overheating by monitoring temperature rise during heavy load. It ensures reliable motor operation under prolonged industrial cycles.
Q: Why is Neodymium Iron-Boron magnet material used in this motor?
A: This magnet type enables high torque density with compact dimensions. It improves acceleration and maintains strong torque at elevated speeds.
Q: What is the benefit of double-shielded bearings in PMB31D-10116-03 Motor?
A: Double-shielded bearings reduce contamination risks in demanding environments. They extend operational life by providing consistent lubrication protection.
Q: How does IP40 protection rating affect performance in the PMB31D-10116-03 Motor?
A: The IP40 rating protects the motor against small solid objects. It is suitable for controlled industrial environments without heavy dust or moisture exposure.
Q: Why are flying leads with AMP connectors used in this motor?
A: AMP connectors ensure fast and secure wiring connections. They reduce installation time and improve field service efficiency.
