McMaster-Carr logo
    Filter by
    Motor Frame Size
    Output Shaft Type
    Input Shaft Diameter
    Attribute Image
    Input Electrical Phase
    Maximum Power
    Output Shaft Diameter
    Attribute Image
    Maximum Input Speed
    Electrical Phase
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Compare
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Motor Reversing Capability
    Overall Height
    Attribute Image
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    37 Products

    Speed Reducers for Position- and Speed-Control Motors

    Pair these speed reducers with stepper and servo motors in position- and speed-control applications. Helical gears provide exact positioning and smoother travel than our other speed reducers. Attach to a motor to transmit motion parallel to the motor shaft while reducing speed and increasing torque.
    With 1 Output Shaft
    Image of Product. Front orientation. Gear Boxes. Speed Reducers for Position- and Speed-Control Motors.
    IP65 Enclosure Rating—They meet IP65 for protection from washdowns.
    Radial Load Capacity—Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.
    Max.
    Output
    Max.
    Input
    Output
    Shaft
    Overall
    Torque
    Speed,
    rpm
    Speed,
    rpm
    Power,
    hp
    For Input
    Shaft Dia.
    Dia.
    Lg.
    Lg.
    Wd.
    Ht.
    Radial Load
    Cap., lb.
    Enclosure
    Rating
    Each
    For NEMA 23 Motor Frames
     
    3:1 Speed Ratio
    240 in·lbf @ 1,750 rpm2,0006,0002.891/4"0.38"1"4 1/2"2 1/2"2 1/2"348IP65
    64815K41000000000
     
    5:1 Speed Ratio
    345 in·lbf @ 1,750 rpm1,2006,0003.241/4"0.38"1"4 1/2"2 1/2"2 1/2"348IP65
    64815K4200000000
     
    10:1 Speed Ratio
    265 in·lbf @ 1,750 rpm6006,0001.451/4"0.38"1"4 1/2"2 1/2"2 1/2"348IP65
    64815K4300000000
     
    20:1 Speed Ratio
    345 in·lbf @ 1,750 rpm3006,0001.081/4"0.38"1"5 3/4"2 1/2"2 1/2"348IP65
    64815K4400000000
     
    50:1 Speed Ratio
    345 in·lbf @ 1,750 rpm1206,0000.461/4"0.38"1"5 3/4"2 1/2"2 1/2"348IP65
    64815K4500000000
     
    For NEMA 34 Motor Frames
     
    3:1 Speed Ratio
    743 in·lbf @ 1,750 rpm1,8335,5006.751/2"1/2"1.25"5 1/4"3 1/2"3 1/2"630IP65
    64815K5100000000
     
    5:1 Speed Ratio
    867 in·lbf @ 1,750 rpm1,1005,5005.731/2"1/2"1.25"5 1/4"3 1/2"3 1/2"630IP65
    64815K5200000000
     
    10:1 Speed Ratio
    797 in·lbf @ 1,750 rpm5505,5003.041/2"1/2"1.25"5 1/4"3 1/2"3 1/2"630IP65
    64815K5300000000
     
    20:1 Speed Ratio
    867 in·lbf @ 1,750 rpm2755,5001.971/2"1/2"1.25"7"3 1/2"3 1/2"630IP65
    64815K5400000000
     
    50:1 Speed Ratio
    867 in·lbf @ 1,750 rpm1105,5000.871/2"1/2"1.25"7"3 1/2"3 1/2"630IP65
    64815K5500000000
     

    Open-Frame DC Motor Drives

    Image of Product. Front orientation. DC Motor Drives. Open-Frame DC Motor Drives.
    Without an enclosure, these drives are ready to build directly into a machine. Adjust the dial to manually control the speed and torque of your setup’s DC motor, or hook them up to your PLC to automate control. These drives have potentiometers to set parameters, such as minimum and maximum speed.
    Drives
    Heat Sinks
    Output
    Input
    Max. Current without
    Heat Sink, amp
    Max. Current
    with Heat Sink, amp
    Voltage, V DC
    For Motor Power
    @ Voltage
    Nominal Voltage
    Electrical
    Phase
    Certification
    Each
    Each
    DC-to-DC
     
    Nonreversing Motor
    160 to 12
    0 to 24
    1/6 hp @ 12V DC
    1/6 hp to 1/3 hp @ 24V DC
    12V DC/24V DCC-UL Listed
    7729K130000000———0
    600 to 12
    0 to 24
    3/4 hp @ 12V DC
    3/4 hp to 1 hp @ 24V DC
    12V DC/24V DCC-UL Listed
    7729K11000000———0
     
    AC-to-DC
     
    Nonreversing Motor
    5100 to 90
    0 to 180
    1/8 hp to 1 hp @ 90V DC
    1/4 hp to 2 hp @ 180V DC
    120V AC/240V ACSingleC-UL Listed, UL Listed
    7793K120000007793K65000000
     

    Washdown DC Motor Drives

    Image of Product. Front orientation. DC Motor Drives. Washdown DC Motor Drives.
    Keep these drives dry, even near washdown zones. A NEMA 4X-rated enclosure seals out moisture and dust. Adjust the dial to manually control the speed and torque of your setup’s DC motor, or hook them up to your PLC to automate control. These drives have potentiometers to set parameters, such as minimum and maximum speed.
    Reversing Motor—Operate in either direction with the flip of a switch or an input from your PLC. There’s no need to rewire the drive.
    Output
    Input
    Max. Current,
    amp
    Voltage, V DC
    For Motor Power
    @ Voltage
    Nominal Voltage
    Electrical
    Phase
    Enclosure
    Rating
    Certification
    Each
    AC-to-DC
     
    Nonreversing Motor
    100 to 90
    0 to 180
    1/8 hp to 1 hp @ 90V DC
    1/4 hp to 2 hp @ 180V DC
    120V AC/240V ACSingleNEMA 4X
    C-UL Listed, UL Listed
    7793K630000000
     
    Reversing Motor
    100 to 90
    0 to 180
    1/8 hp to 1 hp @ 90V DC
    1/4 hp to 2 hp @ 180V DC
    120V AC/240V ACSingleNEMA 4X
    C-UL Listed, UL Listed
    7793K64000000
     

    DIN-Rail Mount VFDs

    Image of Product. Front orientation. VFDs. DIN-Rail Mount VFDs.
    Mount these VFDs to DIN rail inside a control panel. Set them to automatically adjust motor speed. Wire a potentiometer (not included) for remote manual control.
    Output
    For Max. Motor
    Power, hp
    Max. Current,
    amp
    Nominal
    Voltage
    Frequency,
    Hz
    Input Analog Signal
    Mounting
    Location
    Each
    Single Phase—120V AC Nominal Input Voltage
    1/23115V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K6510000000
    14.8115V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K652000000
     
    Single Phase—240V AC Nominal Input Voltage
    14.8230V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K658000000
    27.8230V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K655000000
    311230V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K656000000
     
    Three Phase—240V AC Nominal Input Voltage
    14.8230V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K657000000
    27.8230V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K659000000
    311230V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K761000000
     
    Three Phase—480V AC Nominal Input Voltage
    12.2460V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K762000000
    35.6460V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K763000000
    57.6460V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K76400000000
    7 1/212460V AC0 to 4004 mA to 20 mA, 0V DC to 10V DCDIN Rail, Panel7786K76500000000
     

    Open Frame VFDs

    Image of Product. Front orientation. VFDs. Open Frame VFDs.
    The open design of these VFDs makes them easy to integrate into machine builds. They’re often used in packaging machines, conveyors, and vacuum equipment.
    These VFDs can receive analog signals or be controlled with the included potentiometer.
    Output
    For Max. Motor
    Power, hp
    Max. Current @ Nominal
    Input Voltage
    Nominal
    Voltage
    Frequency,
    Hz
    Input Analog
    Signal
    Mounting
    Location
    Each
    Single Phase—120/240V AC Nominal Input Voltage
    13 amp @ 120V AC
    3 amp @ 240V AC
    230V AC0 to 600V DC to 5V DCSurface6488K320000000
    24.5 amp @ 120V AC
    6 amp @ 240V AC
    230V AC0 to 600V DC to 5V DCSurface6488K33000000
     

    DC Motor Drives

    Image of Product. Front orientation. DC Motor Drives. DC Motor Drives.
    Control the speed and torque of DC motors. These drives have a dial for manual adjustments, or you can automate control by hooking them up to your PLC. Use the potentiometers to set parameters, such as minimum and maximum speed.
    Reversing Motor—Operate in either direction with the flip of a switch or an input from your PLC. There’s no need to rewire the drive.
    Drives
    Heat Sinks
    Output
    Input
    Max. Current without
    Heat Sink, amp
    Max. Current
    with Heat Sink, amp
    Voltage, V DC
    For Motor Power
    @ Voltage
    Nominal Voltage
    Electrical
    Phase
    Certification
    Each
    Each
    AC-to-DC
     
    Nonreversing Motor
    5100 to 90
    0 to 180
    1/8 hp to 1 hp @ 90V DC
    1/4 hp to 2 hp @ 180V DC
    120V AC/240V ACSingleC-UL Listed, UL Listed
    7793K5100000007793K550000000
     
    Reversing Motor
    5100 to 90
    0 to 180
    1/8 hp to 1 hp @ 90V DC
    1/4 hp to 2 hp @ 180V DC
    120V AC/240V ACSingleC-UL Listed, UL Listed
    7793K520000007793K55000000
     

    Washdown VFDs

    Image of Product. Front orientation. VFDs. Washdown VFDs.
    Rated NEMA 4, these VFDs are protected from washdowns. Set them to automatically adjust motor speed. Wire a potentiometer (not included) for remote manual control.
    NEMA 12 Enclosure Rating—Controls rated NEMA 12 also protect against splashes of oil and coolant when used indoors only.
    Output
    For Max. Motor
    Power, hp
    Max. Current,
    amp
    Nominal
    Voltage
    Frequency,
    Hz
    Input Analog Signal
    Environment
    Enclosure Rating
    Each
    Single Phase—240V AC Nominal Input Voltage
    1 1/24.3230V AC0 to 1204 mA to 20 mA, 0V DC to 10V DCOily, Outdoor, Washdown, Wet, Corrosive, DustyNEMA 4, NEMA 12, IP66
    7786K7210000000
     
    Single/Three Phase—240V AC Nominal Input Voltage
    27.3230V AC0 to 5004 mA to 20 mA, 0V DC to 10V DCOutdoor, Washdown, Wet, DustyNEMA 4, IP66
    7786K391000000
     
    Three Phase—480V AC Nominal Input Voltage
    34.3460V AC0 to 5004 mA to 20 mA, 0V DC to 10V DCOutdoor, Washdown, Wet, DustyNEMA 4, IP66
    7786K361000000
    34.3460V AC0 to 5004 mA to 20 mA, 0V DC to 10V DCOutdoor, Washdown, Wet, Corrosive, DustyNEMA 4, IP66
    7786K381000000
     
    back to top