PMB31D-20214-03

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The PMB31D-20214-03 brushless servomotor features a NEMA Size 34 frame, a continuous stall torque of 2.11 Nm, a rotor inertia of 0.137 kg·m²×10⁻³, and a thermal resistance of 1.08 °C/Watt. Part of the PMB Brushless Servomotors series by Pacific Scientific, it also boasts a peak torque of 6.26 Nm.

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Product Description:

This PMB31D-20214-03 synchronous servomotor by Pacific Scientific is known to deliver high performance. The motor showcases a brushless design. This product offers precise positioning capabilities. The device is known for the ability to deliver high torque. This unit is equipped with rare earth magnets. It portrays a 24 VAC operating voltage. The motor is always operated with the manufacturer’s servo drive.

This product is an apt option for high-volume applications. The device is rated as a PMB series motor. This unit’s compact size makes it suitable for installation in small-sized machinery. Its shaft has an increased protection class because of a shaft seal. The motor is also integrated with a thermistor that protects it against thermal overload. This product encompasses bearings with a double shielding. The device is constructed with exposed laminations. This unit features a D winding code. It has an overall length of 5.28 inches.

The motor’s surface temperature is likely to rise to a very high value during its operation. This product’s feedback is achieved through a digital encoder with commutation ability. The device’s flying leads used for connection have a size of 18 inches. Its compact size accounts for its easy portability. The motor deploys a NEMA mounting style. This product isn’t recommended for any kind of residential use. The device’s design depicts eight poles. This unit is associated with high versatility. It is designed with a square frame featuring four mounting holes. The synchronous servomotor’s shaft has a square shape and should not be used for pickup purposes as this can lead to its damage.

Connector Type
Flying leads with MS connectors
Continuous Stall Torque
2.11 Nm (18.7 lb-in)
Encoder Resolution
2048 ppr
Motor Size
NEMA Size 34
Nominal Stall Current @240vac Max
5.4 ARMS
Peak Torque
6.26 Nm (55.4 lb-in)
Rotor Inertia
0.137 kg·m²×10⁻³ (1.21 lb-in·s²×10⁻³)
Sensor Type
Digital Encoder with commutation
Stack Length Multiple
1
Static Friction (max)
0.09 Nm (0.8 lb-in)
Thermal Resistance
1.08 °C/Watt
Thermal Time Constant
28 min
Torque Constant (rms)
0.41 Nm/ARMS (3.67 lb-in/ARMS)
Viscous Damping Coefficient
0.0124 Nm/kRPM (0.110 lb-in/kRPM)
Weight (motor Only)
2.5 kg (5.5 lbs)
  • PMB 31D 20214 03
  • PMB-31D-20214-03
  • PMB31D 20214 03
  • PMB31D-2O214-O3
  • PMB31D2021403
  • PMB3lD-202l4-03
  • PMB3lD-2O2l4-O3

Frequently Asked Questions about PMB31D-20214-03:

Q: What kind of bearings does the PMB31D-20214-03 motor have?

A: The PMB31D-20214-03 motor has double-shielded bearings.

Q: What is the winding designation of the PMB31D-20214-03 motor?

A: The PMB31D-20214-03 motor has a D winding designation.

Q: What type of laminations does the PMB31D-20214-03 motor have?

A: The PMB31D-20214-03 motor has exposed laminations.

Q: What is the resolution of the encoder of the PMB31D-20214-03 motor?

A: The resolution of the encoder of the PMB31D-20214-03 motor is 2048 PPR.

Q: What is the frame size of the PMB31D-20214-03 motor?

A: The PMB31D-20214-03 motor has a NEMA Size 34 frame.


Internal Product Review

  • ‘‘The PMB31D-20214-03 motor delivers high performance. It has an IP 40 protection class. The motor has Class F insulation.’’

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