PMB31B-20116-00

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The PMB31B-20116-00 motor has a NEMA Size 34 frame, a continuous stall torque of 2.11 Nm, an encoder resolution of 4096 ppr, and a peak torque of 6.26 Nm. Part of the PMB Brushless Servomotors series manufactured by Pacific Scientific, it features flying leads with AMP connectors and weighs 2.5 kilograms.

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Product Description:

The Pacific Scientific manufactures the PMB31B-20116-00 brushless servomotor, which provides accurate control in industrial automation systems. The servo motor has a digital encoder for communication that ensures reliable feedback.

The PMB31B-20116-00 brushless servo motor can handle loads up to 4.1 Nm peak and 1.9 Nm continuous. The servo motor has a maximum speed of 4300 revolutions per minute when it is not under stress, and its rated speed is 2900 revolutions per minute. The servo motor receives precise position feedback from a digital encoder that includes 4096 pulses per revolution (ppr). While the motor is functioning at a steady 2.7 A RMS, it will eventually come to a halt. The motor requires 5.3 A RMS of current while it is operating at its maximum torque. For the purpose of ensuring a safe attachment to the load, the shaft is equipped with a square key that comes in sizes 2 and 3. The winding current is measured to be 2.7 A when taken as a whole. For convenient electrical connections, the motor comes with flying leads and amp connectors. It is possible to achieve greater operating flexibility with the motor since its continuous stall torque is 2.1 Nm and its peak stall torque is 4.1 Nm.

The motor's NEMA size 34 chassis gives it a small stature while still providing enough power for a range of uses. It is designed to reliably and efficiently manage demanding performance requirements. The PMB31B-20116-00 brushless servo motor is the ideal choice when it comes to speed and torque. The servo motor provides easy incorporation into different kinds of automation systems. This servo motor's efficient performance is ideal for applications that require accurate torque and speed control.

Connector Type
Flying leads with AMP connectors
Continuous Stall Torque
2.11 Nm (18.7 lb-in)
Encoder Resolution
4096 ppr
Inertia
0.137 kg·m² × 10⁻³ (1.21 lb·in·s² × 10⁻³)
Motor Size
NEMA Size 34
Nominal Stall Current @240vac Max
2.7 ARMS
Peak Torque
6.26 Nm (55.4 lb-in)
Sensor Type
Digital Encoder with commutation
Stack Length Multiple
1
Static Friction Max
0.09 Nm (0.80 lb-in)
Thermal Resistance
1.08 °C/W
Thermal Time Constant
28 min
Torque Constant (rms)
0.79 Nm/A RMS (7.03 lb-in/A RMS)
Viscous Damping Coefficient
0.0124 Nm/kRPM (0.110 lb-in/kRPM)
Weight
2.5 kg (5.5 lb)
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Frequently Asked Questions about PMB31B-20116-00:

Q: Why is the peak rated torque of 4.1 Nm important for the Pacific Scientific PMB31B-20116-00?

A: The 4.1 Nm peak rated torque ensures that the motor can handle brief high-torque loads, offering flexibility and reliability in demanding operations without compromising performance.

Q: Does the Pacific Scientific PMB31B-20116-00 feature a square key shaft?

A: Yes, the Pacific Scientific PMB31B-20116-00 uses a square key shaft (sizes 2 and 3), ensuring secure attachment to the load, improving the mechanical connection, and reducing slippage risks.

Q: How does the 4096 ppr encoder benefit the Pacific Scientific PMB31B-20116-00?

A: The 4096 ppr encoder provides highly accurate feedback for precise positioning, allowing for smooth motion control and improved system performance in automation tasks.

Q: Do the flying leads with amp connectors simplify installation for PMB31B-20116-00?

A: Yes, the flying leads with amp connectors allow quick and easy electrical connections, reducing setup time and improving the flexibility of integration with other systems.

Q: Why is the rated speed of 2900 rpm crucial for the Pacific Scientific PMB31B-20116-00?

A: The 2900 rpm rated speed is ideal for applications requiring fast and continuous operation. It allows for high-speed performance without exceeding the motor’s rated limits.


Internal Product Review

  • ‘‘The Pacific Scientific PMB31B-20116-00 is a brushless servomotor with a peak torque of 4.1 Nm. It has a rated speed of 2900 rpm, continuous torque of 1.9 Nm, and a 4096 ppr encoder. This servo motor is ideal for precise control in automation systems requiring high torque and reliability.’’

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