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    No. 99 Innovation Avenue, Xinbei District, Changzhou, Jiangsu
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EC057B 57mm Brushless DC Motor
EC057B 57mm Brushless DC Motor
EC057B 57mm Brushless DC Motor
EC057B 57mm Brushless DC Motor

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Product details
The EC057B series brushless motor is a high torque brushless motor designed with NEMA 23 packaging. It has 4 motor lengths to choose from, with continuous torque ranging from 0.148-0.586 Nm.

characteristic:
  • Speed up to 6000 RPM
  • DC bus voltage up to 170 Vdc
  • NEMA 23 configuration
  • Six standard windings
  • 4-pole rare earth design

Video:
How to create motor curves and how to use them
When should a gearbox be used in DC motor applications?

  • specifications+

    MOTOR DATA Units EC057B-1 EC057B-2 EC057B-3 EC057B-4
    Max DC Terminal Voltage V 170 170 170 170
    Max Speed (Mechanical) rpm 6000 6000 6000 6000
    Continuous Stall Torque Nm 0.15 0.32 0.40 0.60
    Continuous Stall Torque oz-in 21 45 57 84
    Peak Torque (Maximum) Nm 0.46 0.98 1.3 1.8
    Peak Torque (Maximum) oz-in 65 140 180 260
    Rotor Inertia kg m2 0.0000071 0.000012 0.000018 0.000023
    Rotor Inertia oz-in-s2 0.0010 0.0017 0.0025 0.0032
    Motor Weight g 540 740 1000 1300
    Motor Weight oz 19 26 36 45

  • dimension+


  • Performance Curve+


    EC057B-1 speed torque performance curve

    S. O.A.C.=safe working area for continuous operation


    EC057B-2 speed torque performance curve

    S. O.A.C.=safe working area for continuous operation


    EC057B-3 speed torque performance curve

    S. O.A.C.=safe working area for continuous operation


    EC057B-4 speed torque performance curve

    S. O.A.C.=safe working area for continuous operation


    Note: All values were measured at an ambient temperature of 25 ° C. The peak value is a theoretical value and is for reference only.

  • Winding performance data+

    Page-55262eff-f78c-416c-bf38-29280b277b26
    EC057B-1 Units
    Rated Voltage V 30.0 38.0 48.0 60.0 76.0 76.0
    Rated Torque Nm 0.13 0.13 0.13 0.13 0.13 0.13
    Rated Torque oz-in 19 19 19 19 19 19
    Rated Speed rpm 6000 6000 6000 6000 6000 6000
    Rated Current A 5.8 4.6 3.6 2.9 2.4 1.8
    Rated Power W 83 83 83 83 84 84
    No Load Speed rpm 6000 6000 6000 6000 6000 6000
    No Load Current A 0.34 0.28 0.22 0.18 0.14 0.11
    Torque Constant Nm/A 0.0267 0.0334 0.0430 0.0528 0.0658 0.0840
    Torque Constant oz-in/A 3.79 4.73 6.09 7.48 9.32 11.9
    Voltage Constant V/krpm 2.80 3.50 4.50 5.53 6.89 8.80
    Terminal Resistance Ω 0.420 0.660 1.08 1.65 2.51 4.10
    Inductance mH 0.69 1.09 1.80 2.68 4.17 6.80
    Peak Current A 20 16 12 9.9 8.1 6.3
    Page-1091e6ba-ee20-47aa-8413-0081b78a8c31
    EC057B-2 Units
    Rated Voltage V 38.0 48.0 60.0 76.0 76.0 152
    Rated Torque Nm 0.27 0.27 0.28 0.27 0.28 0.28
    Rated Torque oz-in 39 39 39 39 39 39
    Rated Speed rpm 6000 6000 6000 6000 6000 6000
    Rated Current A 8.5 7.2 5.7 4.6 3.7 2.3
    Rated Power W 170 170 170 170 170 170
    No Load Speed rpm 6000 6000 6000 6000 6000 6000
    No Load Current A 0.46 0.39 0.31 0.25 0.20 0.12
    Torque Constant Nm/A 0.0372 0.0442 0.0561 0.0698 0.0870 0.143
    Torque Constant oz-in/A 5.27 6.26 7.95 9.89 12.3 20.3
    Voltage Constant V/krpm 3.90 4.63 5.88 7.31 9.11 15.0
    Terminal Resistance Ω 0.280 0.400 0.640 1.00 1.55 4.08
    Inductance mH 0.57 0.80 1.29 2.00 3.10 8.40
    Peak Current A 30 25 20 16 13 7.8
    Page-a62c5bad-ab7e-4806-b6af-d5097987c1fb
    EC057B-3 Units
    Rated Voltage V 38 48.0 60.0 76.0 76.0 152 170
    Rated Torque Nm 0.33 0.34 0.34 0.34 0.34 0.34 0.33
    Rated Torque oz-in 47 48 48 48 49 49 47
    Rated Speed rpm 6000 6000 6000 6000 6000 6000 6000
    Rated Current A 11 8.9 7.1 5.6 4.5 2.8 1.9
    Rated Power W 210 210 210 210 220 220 210
    No Load Speed rpm 6000 6000 6000 6000 6000 6000 6000
    No Load Current A 0.55 0.46 0.36 0.29 0.23 0.14 0.098
    Torque Constant Nm/A 0.0366 0.0439 0.0561 0.0708 0.0879 0.144 0.204
    Torque Constant oz-in/A 5.18 6.22 7.95 10.0 12.5 20.4 28.9
    Voltage Constant V/krpm 3.83 4.60 5.88 7.41 9.21 15.1 21.4
    Terminal Resistance Ω 0.190 0.280 0.450 0.710 1.12 2.88 6.42
    Inductance mH 0.39 0.57 0.93 1.49 2.30 6.17 12.52
    Peak Current A 39 33 25 20 16 9.9 6.6
    Page-2613848c-4865-4ce9-a335-387ccef73e10
    EC057B-4 Units
    Rated Voltage V 48.0 60.0 76.0 76.0 152 152
    Rated Torque Nm 0.50 0.50 0.50 0.52 0.51 0.52
    Rated Torque oz-in 70 70 71 74 72 74
    Rated Speed rpm 6000 6000 6000 5770 6000 5840
    Rated Current A 13 10 8.1 4.9 3.8 2.5
    Rated Power W 310 310 310 310 320 320
    No Load Speed rpm 6000 6000 6000 6000 6000 6000
    No Load Current A 0.64 0.50 0.40 0.24 0.19 0.12
    Torque Constant Nm/A 0.0439 0.0561 0.0708 0.118 0.153 0.235
    Torque Constant oz-in/A 6.22 7.94 10.0 16.8 21.6 33.3
    Voltage Constant V/krpm 4.60 5.87 7.41 12.4 16.0 24.6
    Terminal Resistance Ω 0.170 0.270 0.440 1.20 1.94 4.63
    Inductance mH 0.44 0.74 1.20 3.30 5.48 12.85
    Peak Current A 48 36 29 18 14 9.0

  • Wiring diagram+



    Color Signal
    Red Phase R
    White Phase S
    Black Phase T
    Bare Case Ground

    Note: EC057B uses a Z-Series Commutation Encoder. See Encoder section for wire color and signal designations.

  • encoder+


    Z encoder
    The Z series incremental encoder adopts the latest ASIC sensor technology. This technology uses fewer components to improve product quality, while reducing packaging size and increasing accuracy. In addition, the accuracy of the commutation channel is better than the typical accuracy of Hall signals, thereby improving system performance. These devices were originally installed on PITTMAN DC motors to match their electrical performance, so the replacement operation will not cause any "damage" to the motor's performance, thus eliminating the need to "initialize" each new motor. The encoder is connected through the motor 16 pin connector mentioned below.

    characteristic:
    • Output channels - incremental A, B, C and commutation U V、W
    • Differential Line Driver - All 6 Channels
    • Reversing of 4 and 8-pole motors
    • Power requirement -200mA @ 5VDC
    • 500KHz operating frequency - all channels
    • Inertia -0.00015 oz inches per second squared
    • RoHS compliant with EU Directive 2002/95/EC
    • Factory installation only

    specifications
    Encoder data symbol unit Z1 Z3
    Available resolutions - - 1000 2000
    output - - 2-channel orthogonal with index 2-channel orthogonal with index
    output interface - - TTL compatible TTL compatible
    Differential line driver correct correct
    Reversing pole 4-pole 4-pole
    supply voltage Vcc VDC 4.75 to 5.25 4.75 to 5.25
    Power supply current Icc mA Maximum 200 Maximum 200
    Maximum operating frequency fmaximum kHz 500 500
    operation temperature θmaximum °C -20 to+100 -20 to+100

    dimension

    CONNECTION DIAGRAM
    Pin Z model
    1 Vcc
    2 Channel A
    3 Channel B
    4 Index I
    5 Output U
    6 OUTPUT V
    7 Output W
    8 Case Ground
    9 general
    10 Channel A?
    11 Channel B?
    12 Index I?
    13 Output U?
    14 Output V?
    15 Output W?
    16 Cable shield

    Recommended Encoder Data Sheet
    Z-Encoder Data Sheet PDF

  • Driver+


    Recommended Drivers
    BGE6050

    spare drive
    BGE6010
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