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Cogging torque of electrical motors is the torque due to the interaction between the permanent magnets of the rotor and the stator slots of a permanent magnet machine. It is also known as detent or no-current torque. This torque is position dependent and its periodicity per revolution depends on the number of magnetic poles and the number of ...
A detent is a mechanical or magnetic means to resist or arrest the movement of a mechanical device. [1] Such a device can be anything ranging from a simple metal pin to a machine. The term is also used for the method involved. Magnetic detents are most often used to divide a shaft rotation into discrete increments.
If left powered at a final step, a strong detent remains at that shaft location. This detent has a predictable spring rate and specified torque limit; slippage occurs if the limit is exceeded. If current is removed, a lesser detent still remains, holding shaft position against spring or other torque influences. Stepping can then be resumed ...
Ball detents are commonly found in the selector mechanism of a gearbox, holding the selector rods in the correct position to engage the desired gear.Other applications include clutches that slip at a preset torque, and calibrated ball detent mechanisms are typically found in a torque wrench.
That is the definition of freedom. This is a story about predators who hunt women for sport.” Mace claims she discovered a video of Bryant participating in a sexual assault among thousands of ...
Dr. Aseem Malhotra, a cardiologist and public health campaigner based in London, says Americans' foods are fueling chronic diseases. He shares his warnings and tips with Fox News Digital.
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An over-torque condition pushes the balls out of their detents, thereby decoupling the shaft. It can have single or multiple detent positions, or a snap acting spring which requires a manual reset. There may be a compression adjustment to adjust the torque limit. Many cordless drills incorporate this type of torque limiter in a planetary ...