PMB31B-20116-03

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The Pacific Scientific PMB31B-20116-03 servomotor, part of the PMB Brushless Servomotors series, features a NEMA Size 34 design with a length of 134.1 mm (5.28 inches). It delivers a continuous stall torque of 2.1 Nm, a peak torque of 4.7 Nm, and operates at a rated speed of 2700 RPM. The motor has an IP40 protection rating.

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Product Description:

The PMB31B-20116-03 is a Pacific Scientific brushless motor. It has been manufactured for industrial automation tasks. This servo is part of the Brushless PMB motors range. It has an IP40 protection rating, which means it can be used in clean and regulated settings. The IP40 enclosure protects the parts within from solid particles larger than 1 mm (measured in millimeters), making sure that it works reliably in most manufacturing and industry situations.

This servo motor can go up to 2,700 RPM, which gives it both speed and control for dynamic industrial operations. The PMB31B-20116-03 has a peak torque output of 4.7 Nm, which makes it great for tasks that need moderate force and quick reaction times, such conveyor systems, moving light materials, and automated assembly machines. The servo motor's built-in digital encoder gives precise feedback for closed-loop control. The closed loop control helps with improving precision even further by allowing for better positioning and speed monitoring and control. Pacific Scientific's PMB series motors work well with their digital brushless servo drivers to provide a complete and high-performance motion control solution. The PMB series is particularly flexible since users may choose the connection types, feedback solutions, and windings that work best for different application. This means users can get the servo motor to fit the needs without having to wait too long for it to be delivered. The PMB31B-20116-03 works with either MS connections or AMP small Mate-N-Lock® connectors. This makes installation easier and makes sure that the connection works in the field. The Pacific Scientific PMB31B-20116-03 has the best features of brushless technology, accurate digital feedback, and construction that meets NEMA standards.

Connector Type
Flying leads with AMP connectors
Continuous Rated Current
2.7 ARMS
Continuous Stall Torque
2.1 Nm (18.7 lb-in)
Encoder Resolution
4096 ppr
Inertia (with Resolver)
0.137 kgm² ×10⁻³ (1.21 lb-in-sec² ×10⁻³)
Line-to-line Inductance
4.8 mH
Motor Size
NEMA Size 34
Nominal Stall Current @240vac Max
2.7 ARMS
Peak Current
6.0 ARMS
Peak Torque
4.7 Nm (41.4 lb-in)
Protection Rating
IP40
Rated Speed
2700 RPM
Sensor Type
Digital Encoder with commutation
Stack Length Multiple
1
Winding Type
B (Nominal 2.7 ARMS)
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Frequently Asked Questions about PMB31B-20116-03:

Q: What type of connector does the PMB31B-20116-03 motor use?

A: It uses flying leads with AMP connectors.

Q:  What is the motor size of this model?

A: The motor size is NEMA Size 34.

Q:  What is the encoder resolution for the PMB31B-20116-03?

A: The encoder resolution is 4096 pulses per revolution (ppr).

Q: What type of sensor does this motor feature?

A: The motor is equipped with a digital encoder with commutation.

Q: What does the "stack length multiple" indicate for this motor?

A: The stack length multiple is 1.


Internal Product Review

  • ‘‘It is a NEMA Size 34 brushless servomotor that is protected by an IP40 rating. It has a maximum speed of 2700 RPM and was made by Pacific Scientific as part of their PMB Brushless Servomotors line. With a peak torque of 4.7 Nm, the motor has a digital encoder built in.’’

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