BE Series Bridged Stator, Brushless Servo Motor

Parker’s BE Series brushless servo motors produce high continuous stall torque in a cost-reduced package.
The increased torque of the BE Series motors is the result of an increased number of magnetic poles on the rotor. Traditional motors in these frame sizes have four magnetic poles on the rotor, while the BE Series motors have eight poles.

The cost reduction of the BE Series motors is achieved from their open-lamination design.
Unlike a traditional servo motor, the BE Series motors do not have a metal housing. Instead, the laminations of the motor stator are shaped into the body of the motor. This design reduces both material costs and time required for assembling the motor.

The BE Series motors are created using Parker’s proven bridged stator design. This two-piece lamination design simplifies the manufacturing process, creating further cost savings. The bridged stator construction also results in less audible noise being generated by the motor.

The BE Series servo motors are available with integrated planetary gearheads in ratios up to 100:1.
This unique package integrates the gear-head pinion into the motor shaft, reducing the overall package length by up to 2 inches.

Note: These specifications are based on theoretical motor performance and are not specific to any amplifier.
1 @ 25°C ambient, 125°C winding temperature, motor connected to a 10” x 10” x 1/4” aluminum mounting plate; @ 40°C ambient derate phase currents and torques by 6%.
2 Maximum winding temperature is 155 °C. Thermal protection device threshold may be at a lower temperature.
3 These ratings are valid for Parker drives. Other drives may not achieve the same ratings.
4 Maximum speed is 5000 rpm.
5 Measured line-to-line, ±10%. ±30%, line-to-line inductance bridge measurement @1Khz.
6 Reference only.
7 Total motor torque per peak of the sinusoidal amps measured in any phase, ±10%.
8 Initial winding temperature must be 60°C or less before peak current is applied.
9 No thermal switch within BE16. Use servo drive thermal model for overtemp protection or lower peak current.

NEMA Size: 23Back To Top

Note: These specifications are based on theoretical motor performance and are not specific to any amplifier.
1 @ 25°C ambient, 125°C winding temperature, motor connected to a 10” x 10” x 1/4” aluminum mounting plate; @ 40°C ambient derate phase currents and torques by 6%.
2 Maximum winding temperature is 155 °C. Thermal protection device threshold may be at a lower temperature.
3 These ratings are valid for Parker drives. Other drives may not achieve the same ratings.
4 Maximum speed is 5000 RPM.
5 Measured line-to-line, ±10%. ±30%, line-to-line inductance bridge measurement @1Khz.
6 Reference only.
7 Total motor torque per peak of the sinusoidal amps measured in any phase, ±10%.
8 Initial winding temperature must be 60°C or less before peak current is applied.
9 Use servo drive thermal model for overtemp protection or lower peak current.

NEMA Size: 34Back To Top

Note: These specifications are based on theoretical motor performance and are not specific to any amplifier.
1 @ 25°C ambient, 125°C winding temperature, motor connected to a 10” x 10” x 1/4” aluminum mounting plate; @ 40°C ambient derate phase currents and torques by 6%.
2 Maximum winding temperature is 155 °C. Thermal protection device threshold may be at a lower temperature.
3 These ratings are valid for Parker drives. Other drives may not achieve the same ratings.
4 Maximum speed is 5000 RPM, except BE344 which is limited to 3000 RPM max speed.
5 Measured line-to-line, ±10%. ±30%, line-to-line inductance bridge measurement @1Khz.
6 Reference only.
7 Total motor torque per peak of the sinusoidal amps measured in any phase, ±10%.
8 Initial winding temperature must be 60°C or less before peak current is applied.
9 Use servo drive thermal model for overtemp protection or lower peak current.