PMB31B-00201-01

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The PMB31B-00201-01, part of Pacific Scientific's PMB Brushless Servomotors Series, features a NEMA Size 34 frame with flying leads and MS connectors. It delivers a continuous torque of 1.9 Nm, a peak torque of 4.7 Nm, and a rated speed of 2700 RPM. The motor incorporates Hall Sensor technology.

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Product Description:

Pacific Scientific develops high quality motion control solutions geared to industrial automation as well as precision servo applications. The PMB Brushless Servomotors series range comprising PMB31B-00201-01 is constructed to deliver good results. It provides stable rotor feedback using a Hall effect sensor providing positioning of the motor.

The PMB31B-00201-01 servo motor is compatible with flying lead terminations with MS style connections to make the integration simple and secure. It is fitted with a shaft seal to aid in dust ingress and motor life extension. The servo motor has a maximum torque of 4.1 newton meters that facilitates fast load acceleration. It has a continuous operating current rating of 2.7 amperes which allows consistent thermal performance at load. The PMB31B-00201-01 servo motor has standardized easy mounting on its NEMA 34 frame size that makes it easily flexibly designed. Its nominal speed is 2900 revolutions per minute and the motor fits dynamic and high-speed drive systems. The electrical inductance of 19.6 millihenries provides good control and stability of current with the operation of a motor. It boasts a total unit length of 131.1 millimeters that enables compact applications on the systems. The servo motor has a rotor inertia of 0.00014 kilogram meter squared to improve responsiveness in stop and go service. Its range of operating temperature is minus 20 degrees Celsius to plus 60 degrees Celsius.

The PMB31B-00201-01 servo motor is compatible with industrial equipment that needs smooth movement with measured acceleration. It is environmentally rated at IP40 and a smooth shaft is used in this motor that offers reliable output in a controlled environment. The PMB servomotor range is a low maintenance product line where repeatability and constancy of movement are imperative.

Connector Type
Flying leads with MS connectors
Continuous Current
2.7 A
Continuous Torque
1.9 Nm (16.9 lb-in)
Motor Size
NEMA Size 34
Motor Type
Brushless Servo Motor
Mounting
4 x 5.08 mm on 66.68 mm B.C.
Nominal Stall Current @240vac Max
2.7 ARMS
Peak Speed
4300 RPM
Peak Torque
4.7 Nm (41.3 lb-in)
Protection Class
IP40
Rated Speed
2700 RPM
Rated Voltage
240 V AC, 320 V DC max
Rotor Inertia
0.14 kg·cm^2 (1.21 lb-in·s^2)
Sensor Type
Hall Sensor
Stack Length Multiple
1
  • PMB 31B 00201 01
  • PMB-31B-00201-01
  • PMB31B 00201 01
  • PMB31B-OO2O1-O1
  • PMB31B0020101
  • PMB3lB-0020l-0l
  • PMB3lB-OO2Ol-Ol

Frequently Asked Questions about PMB31B-00201-01:

Q: Why is a smooth shaft used in the PMB31B-00201-01 servo motor?

A: It minimizes vibration and is ideal for applications requiring precise torque transmission in low-backlash assemblies.

Q: What role does the 19.6 mH inductance play in current regulation?

A: It stabilizes current changes during operation, reducing electrical noise and improving motion stability.

Q: Why is NEMA 34 frame size beneficial for PMB31B-00201-01 motor users?

A: It offers compatibility with a wide variety of mounting interfaces, supporting rapid mechanical integration.

Q: How does the IP40 rating affect usage of PMB31B-00201-01 servo motor?

A: It's suitable for clean, dry environments where protection from small objects but not water is sufficient.

Q: What’s the benefit of using MS-style connectors with PMB31B-00201-01?

A: They provide robust and reliable connections ideal for industrial applications needing vibration-resistant electrical continuity.


Internal Product Review

  • ‘‘The PMB31B-00201-01 servo motor ensures consistent thermal behavior with a 2.7 A continuous current and supports fast response via 0.00014 kg·m² rotor inertia. Its shaft seal improves longevity. This motor is ideal for high-speed setups needing repeatable, maintenance-light performance with measured torque output.’’

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