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EC057B 57mm Brushless DC Motor

The EC057B series brushless motor is a high torque model brushless motor designed in a NEMA 23 package. It is offered in 4 motor lengths with continuous torque from 0.148 - 0.586 Nm.

Features:
  • Speeds up to 6,000 RPM
  • DC bus voltage up to 170 Vdc
  • NEMA 23 configuration
  • Six standard windings
  • 4 Pole Rare Earth design
  • Specifications +

    MOTOR DATAUnitsEC057B-1EC057B-2EC057B-3EC057B-4
    Max DC Terminal Voltage V 170170170170
    Max Speed (Mechanical)rpm6000600060006000
    Continuous Stall TorqueNm0.150.320.400.60
    Continuous Stall Torqueoz-in21455784
    Peak Torque (Maximum)Nm0.460.981.31.8
    Peak Torque (Maximum)oz-in65140180260
    Rotor Inertiakg m20.00000710.0000120.0000180.000023
    Rotor Inertiaoz-in-s20.00100.00170.00250.0032
    Motor Weightg54074010001300
    Motor Weightoz19263645
  • Dimensional Drawings +


  • Performance Curves +


    EC057B-1 Speed Torque Performance Curve

    S.O.A.C. = Safe Operating Area for Continuous duty


    EC057B-2 Speed Torque Performance Curve

    S.O.A.C. = Safe Operating Area for Continuous duty


    EC057B-3 Speed Torque Performance Curve

    S.O.A.C. = Safe Operating Area for Continuous duty


    EC057B-4 Speed Torque Performance Curve

    S.O.A.C. = Safe Operating Area for Continuous duty


    NOTE: All values specified at 25°C ambient temperature. Peak values are theoretical and for reference only.
  • Winding Performance Data +

    Page-57c482a0-c4ca-4872-92d9-312c5ea9501b
    EC057B-1Units
    Rated VoltageV30.038.048.060.076.076.0
    Rated TorqueNm0.130.130.130.130.130.13
    Rated Torqueoz-in191919191919
    Rated Speedrpm600060006000600060006000
    Rated CurrentA5.84.63.62.92.41.8
    Rated PowerW838383838484
    No Load Speedrpm600060006000600060006000
    No Load Current A0.340.280.220.180.140.11
    Torque Constant Nm/A0.02670.03340.04300.05280.06580.0840
    Torque Constant oz-in/A3.794.736.097.489.3211.9
    Voltage ConstantV/krpm2.803.504.505.536.898.80
    Terminal ResistanceΩ0.4200.6601.081.652.514.10
    Inductance mH0.691.091.802.684.176.80
    Peak Current A2016129.98.16.3
    Page-34130085-b142-46c6-b5b4-1fd3fc09421b
    EC057B-2Units
    Rated VoltageV38.048.060.076.076.0152
    Rated TorqueNm0.270.270.280.270.280.28
    Rated Torqueoz-in393939393939
    Rated Speedrpm600060006000600060006000
    Rated CurrentA8.57.25.74.63.72.3
    Rated PowerW170170170170170170
    No Load Speedrpm600060006000600060006000
    No Load Current A0.460.390.310.250.200.12
    Torque Constant Nm/A0.03720.04420.05610.06980.08700.143
    Torque Constant oz-in/A5.276.267.959.8912.320.3
    Voltage ConstantV/krpm3.904.635.887.319.1115.0
    Terminal ResistanceΩ0.2800.4000.6401.001.554.08
    Inductance mH0.570.801.292.003.108.40
    Peak Current A30252016137.8
    Page-9ed9e87a-6820-4a85-98c3-a4ac0d84a04f
    EC057B-3Units
    Rated VoltageV3848.060.076.076.0152170
    Rated TorqueNm0.330.340.340.340.340.340.33
    Rated Torqueoz-in47484848494947
    Rated Speedrpm6000600060006000600060006000
    Rated CurrentA118.97.15.64.52.81.9
    Rated PowerW210210210210220220210
    No Load Speedrpm6000600060006000600060006000
    No Load Current A0.550.460.360.290.230.140.098
    Torque Constant Nm/A0.03660.04390.05610.07080.08790.1440.204
    Torque Constant oz-in/A5.186.227.9510.012.520.428.9
    Voltage ConstantV/krpm3.834.605.887.419.2115.121.4
    Terminal ResistanceΩ0.1900.2800.4500.7101.122.886.42
    Inductance mH0.390.570.931.492.306.1712.52
    Peak Current A39332520169.96.6
    Page-8e939f0e-9686-498f-97fb-128d049176c2
    EC057B-4Units
    Rated VoltageV48.060.076.076.0152152
    Rated TorqueNm0.500.500.500.520.510.52
    Rated Torqueoz-in707071747274
    Rated Speedrpm600060006000577060005840
    Rated CurrentA13108.14.93.82.5
    Rated PowerW310310310310320320
    No Load Speedrpm600060006000600060006000
    No Load Current A0.640.500.400.240.190.12
    Torque Constant Nm/A0.04390.05610.07080.1180.1530.235
    Torque Constant oz-in/A6.227.9410.016.821.633.3
    Voltage ConstantV/krpm4.605.877.4112.416.024.6
    Terminal ResistanceΩ0.1700.2700.4401.201.944.63
    Inductance mH0.440.741.203.305.4812.85
    Peak Current A48362918149.0
  • Encoders +


    Z Encoder 
    The Z Series incremental encoders represents state of the art in ASIC sensor technology. This technology requires fewer components thereby increasing product quality while providing improved precision from a smaller package. Additionally, the precision of the commutation channels is superior to that typically achieved with Hall signals resulting in improved system performance. These units are factory mounted on PITTMAN dc motors and aligned to the motor’s electrical properties which allows “drop-in” replacement capability without the need to “initialize” each new motor. Connections to the encoder are made through the motor’s 16 pin connector referenced below. 

    Features:
    • Output Channels- Incremental A, B, C, & Commutation U, V, W
    • Differential Line Drivers – all 6 Channels
    • Commutation for 4 & 8 Pole Motors
    • Power Requirement – 200mA @5VDC
    • 500KHz Operating Frequency – All Channels
    • Inertia – 0.00015 oz-in-sec2
    • RoHS Compliant to EU Directive 2002/95/EC
    • Factory Installed Only

    Specifications
    ENCODER DATA SYMBOL UNITS Z1 Z3
    Available Resolutions - - 1000 2000
    Output - - 2-Channel Quadrature with index 2-Channel Quadrature with Index
    Output Interface - - TTL Compatible TTL Compatible
    Differential Line Driver Yes Yes
    Commutation Poles 4 pole 4 pole
    Supply Voltage Vcc VDC 4.75 to 5.25 4.75 to 5.25
    Supply Current Icc mA 200 max 200 max
    Max. Operating Frequency fmax kHz 500 500
    Operating Temperature θmax °C -20 to +100 -20 to +100

    Dimensional Drawings
     
    Connection Chart
    PIN Z models
    1 Vcc
    2 Channel A
    3 Channel B
    4 Index I
    5 Output U
    6 Output V
    7 Output W
    8 Case Ground
    9 Common
    10 Channel A̅
    11 Channel B̅
    12 Index I̅
    13 Output U̅
    14 Output V̅
    15 Output W̅
    16 Cable Shield

    Recommended Encoder Data Sheets
    Z Encoder Data Sheet pdf 
  • Gearheads +


    G3000 Gear
    The G3000 is a 57 mm, NEMA 23 planetary gearbox suitable for applications where DC Servo brush or BLDC motor technology is specified. The G3000 is a direct mount to a NEMA 23 motor face using a clamp on pinion.

    Features:
    • Maximum Load torque up to 6.8 Nm
    • All steel gearing for high torque capacity
    • Dual ball bearings on output shaft to withstand high loads
    • 75 lb Radial and Axial Load Capacity
    • Easy “bolt on” to NEMA 23 motors

    Specifications
    GEAR DATA UNITS G3005
    5:1
    G3010
    10:1
    G3015
    15:1
    G3025
    25:1
    G3050
    50:1
    G3100
    100:1
    Maximum Load Nm 6.78 6.78 6.78 6.78 6.78 6.78
    oz-in 960 960 960 960 960 960
    Weight (Mass) g 410 590 820 820 1000 1180
    oz 14.4 20.8 28.8 28.8 35.2 41.6
    Length (LG) mm 75.4 98.3 98.3 98.3 113.0 128.3
    in 2.97 3.87 3.87 3.87 4.45 5.05
    Stages - 1 2 2 2 3 4
    Ratio - 5/1 10/1 15/1 25/1 50/1 100/1
    Efficiency - 0.90 0.80 0.80 0.80 0.70 0.60
    Shaft Rotation - CW CW CW CW CW CW

    Dimensional Drawings
     

    Combined Length
    G3000 Gearmotor
    Motor Length LGM mm
    Stage 1 2 3
    EC057B-1 155.4 178.3 193.0 208.3
    EC057B-2 175.5 198.4 213.1 228.4
    EC057B-3 195.3 218.2 232.9 248.2
    EC057B-4 215.4 238.3 253.0 268.3


    Recommended Gearbox Data Sheets
    G3000 Gearbox Data Sheet pdf
  • Drives +


    Recommended Drives
    BGE6050

    Alternate Drives
    BGE6010