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    Spring Engaged Clutch – Through Shaft

    AIR AND SPRING ENGAGED FRICTION CLUTCHES

     

    Available with either air or spring engagement and in an array of mounting options, friction clutches from Mach III transmit torque from one drive train component to another. They are used to connect and disconnect machine components.

     

    SPRING ENGAGED CLUTCH – THROUGH SHAFT
    Through Shaft Bored, Pilot Mount Friction Clutches

     

    Function: Connect, Disconnect
    Drive Arrangement: Shaft to Pilot Mounted Component or Pilot Mounted Component to Shaft

     

    • Bore Sizes to 3.500 inch, Torque Requirements to 23,733 lb.in.
    • Clutch is through bored and keyed to connection to a shaft in any axial location.
    • A sprocket, pulley or v-belt sheave can be mounted on the clutch pilot.

    Operation

    Friction clutch is applied with spring pressure.
    A fixed amount of torque is transmitted.
    To release clutch, air pressure is applied to overcome the spring pressure.

     

    Mounting

    Through Shaft/Mid Shaft or End of Shaft.
    Spring applied friction clutch slides on shaft and is fixed with set screws and a customer supplied key
    Anti-rotation arm required.
    Clutch is designed for horizontal mounting. If vertical mounting is required, consult engineering for options.

     

    Applications

    Spring applied friction clutches are suitable for applications requiring the clutch to remain engaged in the absence of air pressure or during a loss of power.
    Not suitable for cycling applications.
    Maximum RPM varies by model. Please consult the detail sheets (below). Consult engineering if the intended application exceeds the listed maximum RPM.

     

    Design Features

    Made to order, bored to fit the shaft size you specify up to the maximum shown for easy installation.
    Machined pilot for easy mounting of pulley or sprocket.

     

    Product Code 

    Torque 

    Release Pressure 

    Maximum Bore with Standard Keyway 

    Detail Sheet 

    E3A2R-STH 

    509 lb-in 

    74 PSI 

    1.000 in (24 mm) 

    VIEW PDF 

    E4A2R-STH 

    1,086 lb-in 

    75 PSI 

    1.250 in (31 mm) 

    VIEW PDF 

    E5A2R-STH 

    2,502 lb-in 

    75 PSI 

    1.438 in (38 mm) 

    VIEW PDF 

    E5A2K-STH 

    3,133 lb-in 

    75 PSI 

    1.563 in (40 mm) 

    VIEW PDF 

    E6A2G-STH 

    4,723 lb-in 

    78 PSI 

    2.000 in (52 mm) 

    VIEW PDF 

    E6A2K-STH 

    4,723 lb-in 

    78 PSI 

    2.000 in (52 mm) 

    VIEW PDF 

    E8A2K-STH 

    8,324 lb-in 

    77 PSI 

    2.500 in (66 mm) 

    VIEW PDF 

    EAA2K-STH 

    13,182 lb-in 

    76 PSI 

    2.750 in (72 mm) 

    VIEW PDF 

    EBA2K-STH 

    23,733 lb-in 

    77 PSI 

    3.500 in (95 mm) 

    VIEW PDF 

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