# What Is Stable Torque?

The torque torque refers to torque on a unit when the unit speed reaches zero. It can also refer to torque loads needed to cause the unit speed to drop to zero. An engine stall torque is equal to the engine’s maximum torque, which is usually zero turns per minute.

Devices that produce this type of torque include electric motors, steam engines, and hydrodynamic transmissions. For electric motors, torque can still be measured even when these motors are stopped. Maximum continuous torque torque refers to the largest amount of torque a stopped motor can provide without overheating or causing damage to itself.

Hydrodynamic devices such as a fluid coupling, a device used to move mechanical force from one step to the next, can also produce a stall torque. This unit torque equals the maximum torque it can produce without breaking or damaging. Measuring torque while the device is stopped is the best way to gather accurate information.

Different types of torque converters have measurable stall moments as well. For these devices, the stall is torque greater than or equal to the maximum output torque for a given input speed. The industry standard that all other inverters are doomed is the Borg Warner torque converter, designed by a fluid dynamicist from General Motors. The Borg Warner Calculator is considered standard due to its unique qualities while locked in, including its resistance to moving around in stall mode.

A torque converter multiplies the torque torque ratio of a normal unit torque. It is used to move cars with automatic transmissions by letting the engine spin without being bound to transmission. Torque multiplication from a converter depends on four factors: the size and shape of the turbine, and the size and shape of the stator blades. Typical ratios for automotive purposes range from 1.8: 1 to 2.5: 1.

Torque is also related to one rotational unit’s revolutions per minute (rpm). At zero torque, the maximum speed can be reached. Maximum rpm occurs when the engine does not meet any particular load, such as a car frame or large conveyor. In this case, rpm is referred to as free rpm. The formula that relates these various factors is: T = Ts – (N Ts ÷ NF) where T is equal to the torque at N rpm, equal to Ts stall torque, and Nf equal to the free rpm.

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