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Fukuda EA090A Series Brushless DC Moto

Made in Japan
Manufacturer: Fukuda Seiko
Model: EA090A Series: EA090A-1/  EA090A-2/ EA090A-3

Features

The Fukuda EA090A Series Brushless DC Motor delivers high continuous torque in a compact NEMA 34 frame, specifically engineered for precision motion control applications. Designed for reliability, this motor features an IP-65 protection rating, effectively resisting dust and low-pressure water jets—ideal for harsh industrial environments. Moreover, the EA090A–3 variant, as part of the broader EA090A lineup, offers one of four motor lengths, supporting continuous torque outputs from 1.8 to 4.6 Nm, perfectly suited for high-load, closed-loop systems. Additionally, the brushless design improves durability and energy efficiency, while the sealed housing ensures long-term, stable operation under demanding conditions.

Benefits

Speeds up to 6,000 RPM possible
DC bus voltage up to 325 VDC
NEMA 34 package
Five standard windings
4 pole rare earth design

Optional Assemblies

Encoders: Q, C Types
Programmable Drive: BGE6060A

Motor Characteristics

Motor DataUnitsEA090A-1EA090A-2EA090A-3
Max DC Terminal Voltage (VT)V325
Max Speed (Mechanical) (ωMAX)rpm6000
Continuous Stall Torque (TCS)Nm / lb-in1.8 / 2603.4 / 4804.6 / 650
Peak Torque (Maximum) (Tpk)Nm / lb-in9.5 / 130018 / 250025 / 3500
Coulomb Friction Torque (Tf)Nm / oz-in0.041 / 5.80.055 / 7.80.069 / 9.8
Viscous Damping Factor (D)Nm/(rad/s) / oz-in/krpm2.7E-05 / 0.406.7E-05 / 1.02.0E-04 / 2.9
Thermal Time Constant (τth)min202530
Thermal Resistance (Rth)°C/W1.10.890.78
Max. Winding Temperature (θMAX)°C155
Rotor Inertia (Jr)kg·m² / lb-in·s²1.1E-04 / 0.0162.0E-04 / 0.0292.9E-04 / 0.042
Motor Weight (Wm)g / oz3600 / 1305000 / 1806500 / 230

We recorded all values at maximum winding temperature with a 25°C ambient and no heatsink. To operate a brush motor with the PBL4850E, you must use an encoder.

Dimensional Drawings: EA090A-1/ EA090A-2/ EA090A-3Fukuda EA090A–3 Series

Motor DataUnits
Rated Voltage V1 VrV305152305305305
Rated Torque1 • TrNm2.82.92.93.64.1
oz-in390420420510580
Rated Speed1 corrpm60005980600048803790
Rated Current1 IrA16139.86.86.1
Rated Power1 PrW17001800180019001600
No Load Speed conirpm60005980600050004000
No Load Current iniA10.80.580.30.21
Rated Voltage V2 VrV15276152152170
Rated Torque1 • TrNm2.84.444.64.7
oz-in400620560650660
Rated Speed1 corrpm60002730415022001920
Rated Current1 IrA1619138.46.8
Rated Power1 PrW1800130017001100940
No Load Speed conirpm60002990433024902230
No Load Current IniA10.540.480.210.16
Motor Constant KmNmA/W0.430.450.450.450.45
oz-inA/W6164646463
Torque Constant KyNm/A0.1940.2420.3340.5810.726
oz-in/A27.434.347.382.2103
Voltage Constant KeV/(rad/s)0.1940.2420.3340.5810.726
V/krpm20.325.33560.876
Terminal Resistance RmtQ0.20.290.551.662.64
Inductance LmH0.711.12.26.410
Peak Current IpkA130110804536
Electrical Timems3.63.843.93.8
Constant Te
Mechanical Timems1.61.51.41.41.5
Constant Tm

We use the V1 and V2 ratings to illustrate how the motor winding performs under different applied voltages. To ensure precise motor selection, you must refer to the voltage constant (V/krpm) as a key specification. Moreover, always pair this value with the correct motor part number to match application requirements. For instance, when selecting a motor like DC030C-1, consider its 3.31 V/krpm voltage constant to determine its suitability for your drive voltage and speed range. This method ensures optimized winding performance and reliable operation across varied system configurations.
1Recorded at maximum winding temperature at 25°C ambient and without heatsink.Fukuda EA090A–3 Series

 

 

 

 

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