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    11 Products

    Noncontact Magnetic Torque Limiters

    Using magnetic force instead of friction to transmit torque, these torque limiters won't wear when they slip. Because there's no wear, they give you accurate, repeatable action. Also known as hysteresis clutches, use them to brake, control tension, and prevent torque overload. They are designed to slip during a torque overload while still transmitting the set torque. For example, you can use them to maintain a constant tension while winding and unwinding wire. All are through-shaft torque limiters, so they regulate torque transmission between an input shaft and a mounted component, such as a pulley, sprocket, or gear. Twist the adjustment ring to set the torque limit, then lock the ring into place with the included set screw.
    Through Shaft with D-Profile Shaft
    Image of Product. Front orientation. Torque Limiters. Noncontact Magnetic Torque Limiters , Through Shaft with D-Profile Shaft.
    Through-shaft limiters with D-profile shaft let you mount a component directly on the shaft.
    Torque,
    in·lbf
    Max. Rotation
    Speed, rpm
    OD
    Overall
    Lg.
    Drive Direction
    Mounting Hole
    Thread Size
    Shaft
    Dia.
    Each
    0.03 to 0.441,0501 7/16"1 3/4"Clockwise and CounterclockwiseM3 × 0.5 mm5/16"7220K230000000
     

    Flexible-Shaft Shear Couplings

    Image of Product. Front orientation. Flexible Shaft Couplings. Flexible-Shaft Shear Couplings.
    To protect power-transmission components from damage, these couplings will shear or tear in overtorque conditions (approximately 10-20 times the maximum rated torque) to sever connections between shafts. They have a flexible center that not only compensates for misalignment, but also dampens vibration and shock loads. Couplings have no metal-on-metal contact, reducing noise and eliminating the need for lubrication. Fasten to your shaft by tightening the set screws, which bite into the shaft to hold it.
    Misalignment
    Capability
    For Shaft
    Diameter
    Max. Torque,
    in·lbf
    Max. Rotation
    Speed, rpm
    Parallel
    Angular
    OD
    Overall
    Lg.
    Material
    Center
    Material
    Temp. Range,
    ° F
    Torque-Limiting Direction
    Each
    1/4" × 5/16"510,0000.031"1"1 3/4"SteelNeoprene
    -30 to 212Clockwise and Counterclockwise6410K53000000
    5/16" × 5/16"510,0000.031"1"1 3/4"SteelNeoprene
    -30 to 212Clockwise and Counterclockwise6410K3700000
    5/16" × 5/16"1010,0000.031"1 1/4"2 1/8"SteelNeoprene
    -30 to 212Clockwise and Counterclockwise6410K3900000
    5/16" × 3/8"510,0000.031"1"1 3/4"SteelNeoprene
    -30 to 212Clockwise and Counterclockwise6410K5500000

    Chain and Belt Torque Limiters

    Image of Product. Torque Limiter Shown with Sprocket. Front orientation. Chain and Belt Torque Limiters.
    Image of Attribute. Side1 orientation. Contains Annotated.
    Image of Product. Front orientation. Brake and Clutch Friction Lining.

    Torque Limiter

    Shown with

    Sprocket

    Replacement

    Friction Lining

    Prevent damage from overloading. When overloaded, these limiters cause your sprocket or pulley to slip. Once the overload is removed, the limiters automatically reset. Set the torque within the range listed. Friction lining is between the hub and pressure plate.
    Double Spring—Double-spring limiters have a second spring for handling nearly twice the torque of single-spring limiters.
    Sprockets—Sprockets are designed specifically to fit their corresponding limiters. These hubless sprockets are not interchangeable.
    Torque Limiters
    Sprockets
    Replacement
    Friction Lining
    Keyway
    Torque,
    ft·lbf
    For Shaft
    Dia.
    OD
    Overall
    Wd.
    Wd.
    Dp.
    For Max. Sprocket
    or Pulley Wd.
    Friction
    Lining Thk.
    Min.
    Max.
    Hub
    Material
    Each
    Choose a Roller Chain
    Trade Number
    Each
    Each
    Single Spring
    5/16"1 5/16"1 3/8"3/32"3/64"11/32"1/8"16Steel6524K17200000025, 35, 40, 41, 506525K270000006525K68000000
     
    Double Spring
    5/16"1 5/16"1 3/8"3/32"3/64"5/16"1/8"212Steel6524K33200000025, 35, 40, 41, 506525K27000006525K6800000
     

    Electric One-Way Clutches

    Unlike mechanical clutches, these clutches let you electrically control when torque is transmitted. They transfer torque in one direction and spin freely in the opposite direction, so they’re useful in applications where you don’t want motion to reverse such as in backstopping, indexing, and overrunning. When you remove power from these clutches, they disengage, cutting torque to your pulley, sprocket, gear, or other mounted component without stopping your drive shaft.
    Friction Engagement
    Image of Product. Front orientation. Clutches. Electric One-Way Clutches.
    Through Shaft—Through-shaft clutches regulate torque transmission between an input shaft and a mounted component.
    Clockwise Drive
    Counterclockwise Drive
    For Shaft
    Dia.
    For Shaft
    Type
    Max. Torque,
    in·lbf
    Max. Rotation
    Speed, rpm
    OD
    Overall
    Lg.
    Electric
    Clutch Type
    Electrical
    Connection Type
    Shaft Mount
    Type
    Wire Lead
    Lg.
    Voltage,
    V DC
    Current,
    amp
    Each
    Current,
    amp
    Each
    Through Shaft
    5/16"Round301,4001 1/4"1 1/8"Power OnHardwireSpring Pin15"240.145156T420000000.245156T46000000
     
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