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2. Electromagnetic clutches and brakes - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_clutches...

   A constant power supply is ideal if accurate or maximum torque is required from a coupling. If a non-regulated power supply is used, the magnetic flux will degrade, as the resistance of the coil goes up. Basically, the hotter the coil gets the lower the torque will be, by about an average of 8% for every 20 °C.

3. Maximum brake torque - Wikipedia

   en.wikipedia.org/wiki/Maximum_brake_torque

   Maximum brake torque (MBT) is the use of optimal ignition timing to take advantage of an internal combustion engine's maximum power and efficiency. There is always an optimal spark timing for all operating conditions of an engine. MBT is ideal at wide-open throttle (WOT), but not desirable when the engine is at idle.

4. Prony brake - Wikipedia

   en.wikipedia.org/wiki/Prony_brake

   The Prony brake is a simple device invented by Gaspard de Prony in 1821 to measure the torque produced by an engine. The term "brake horsepower" is one measurement of power derived from this method of measuring torque. (Power is calculated by multiplying torque by rotational speed.) [1]

5. Electromagnetic brake - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_brake

   Electromagnetic Hysteresis Power Brake. Electrical hysteresis units have an extremely wide torque range. Since these units can be controlled remotely, they are ideal for test stand applications where varying torque is required. Since drag torque is minimal, these units offer the widest available torque range of any of the hysteresis products.

6. Mean effective pressure - Wikipedia

   en.wikipedia.org/wiki/Mean_effective_pressure

   Speed has dropped out of the equation, and the only variables are the torque and displacement volume. Since the range of maximum brake mean effective pressures for good engine designs is well established, we now have a displacement-independent measure of the torque-producing capacity of an engine design – a specific torque of sorts.

7. Brake force - Wikipedia

   en.wikipedia.org/wiki/Brake_force

   British Railway Class 90 infobox showing brake force Brake force to weight ratio of the Class 67 is higher than some other locomotives. In the case of railways, it is important that staff are aware of the brake force of a train so sufficient brake power will be available to bring the train to a halt within the required distance from a given speed.