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B-202-C-31 Kollmorgen

The Kollmorgen B-202-C-31 is part of the Goldline B and BH Motors series and provides a rated power of 1.5 kW with a rated speed of 6200 RPM. It features a peak torque of 7.65 Newton-meters and a continuous stall torque of 2.44 Newton-meters at 40 degrees Celsius. The motor includes bayonet connectors with mating plugs and is equipped with an IP65 seal rating for protection.

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Internal Product Review

The B-202-C-31 is a Kollmorgen Goldline motor rated at 1.5 kW with 6200 RPM capability. Performance is especially strong for dynamic motion applications, with 2.44 N-m continuous stall torque and 7.65 N-m peak torque. IP65 sealing and frameless resolver feedback make the unit a dependable choice for precise industrial servo duty.

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Product Description:

The B-202-C-31 is an AC brushless servo motor produced by Kollmorgen as a member of the Kollmorgen Goldline B and BH Motors series. Within multi-axis machinery, it provides closed-loop rotary actuation for positioning tables, gantries, and similar motion stages, linking directly to a Kollmorgen drive through its bayonet connectors. By integrating high-resolution resolver feedback, the motor supplies the controller with real-time rotor angle data so that precise velocity and torque loops can be maintained during industrial automation tasks.

The electrical design centers on a back electromotive force of 29.4 VRMS/kRPM, which indicates the voltage returned to the drive per 1000 rpm of shaft speed. A continuous phase current of 5.00 ARMS pairs with a continuous stall torque of 2.44 N-m; together, these values indicate the steady output limit at a 40 °C winding temperature. Coil impedance is shaped by a 2.34 Ω DC resistance and an inductance of 25.0 mH, parameters that influence thermal rise as well as current ripple under pulse-width-modulated drive excitation. The motor can be energized up to a 250 VRMS line-to-line bus, and its torque sensitivity is 0.49 N-m/ARMS, so commanded current can be translated into delivered torque without complex scaling.

For transient motion, the winding accepts a peak line current of 16.6 ARMS and produces a peak torque of 7.65 N-m, supporting rapid acceleration and deceleration profiles. Nominal operation is specified at 1.5 kW mechanical output and a rated speed of 6200 rpm, figures that help match the motor to load inertia and transmission ratios. The rotor’s reflected inertia is only 0.0000996 kg-m², which promotes quick response when the motor is coupled to low-mass loads. The motor has an IP65 shaft seal, a factory-installed rear shaft extension, and bayonet connectors with mating plugs. The shaft seal helps protect internal components from dust and low-pressure water jets.

Back Emf
29.4 VRMS/kRPM
Connector Type
Bayonet Connectors With Mating Plugs
Cont. Line Current
5.00 ARMS
Cont. Stall Torque (40c)
2.44 N-m
Dc Resistance
2.34 Ohms
Feedback Type
Frameless Resolver
Inductance
25.0 mH
Max Line-to-line Voltage
250 VRMS
Peak Line Current
16.6 ARMS
Peak Torque
7.65 N-m
Rated Power
1.5 kW
Rated Speed
6200 RPM
Rear Shaft Extension
Included
Rotor Inertia
0.0000996 kg-m^2
Seal Rating
IP65
Torque Sensitivity
0.49 N-m/ARMS

Frequently Asked Questions about B-202-C-31:

Q: What is the continuous stall torque of the B-202-C-31 motor?

A: The B-202-C-31 motor provides a continuous stall torque of 2.44 N-m at 40°C.

Q: What type of feedback does the B-202-C-31 motor use?

A: This model utilizes frame-resolver feedback for precise position and speed measurement.

Q: What is the rated power output of the B-202-C-31 motor?

A: The rated power output of the B-202-C-31 is 1.5 kW, supporting demanding motion applications.

Q: Does the B-202-C-31 motor include a rear shaft extension?

A: The B-202-C-31 features a rear shaft extension to accommodate additional coupling requirements.

Q: What is the ingress protection rating of the B-202-C-31 motor?

A: This motor is protected to an IP65 seal rating, offering strong resistance to dust and water ingress.

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