what is the relationship between torque and speed in gear trains?
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Here is a basic relationship for geartrains: Torque times Speed = Power. Except for friction losses, power remains a constant in a gear train. In our example above, speed was 15 times smaller on the output shaft, which means torque was 15 times greater!
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Computing for the gear ratio requires taking the number of teeth of the output gear and dividing this by the number of the input gear. ... If the number of teeth for both the input and output gears are the same, say each having 10 teeth, then the gear ratio is 1:1, also known as direct drive ratio.
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Off-road excellence The G-Class uses a 2.91:1 low gear ratio, which is better than its predecessor, resulting in more torque multiplication at slow, off-road speeds. The G-Class can also shift from high to low range at speeds of up to 25 mph, and you can go back into high up to 43 mph.
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On the other hand, four-wheel-drive vehicles have a transfer case, rather than a center differential, that forces both axles to spin at the same speed. The gears in the transfer case usually divide the power between the front and rear axles, so both axles deliver the maximum possible amount of torque.
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Speed: The speed of a motor, at its most basic form, is the rate at which the motor spins. The speed of an electric motor is measured in rotations per minute, or RPM. Torque: The torque output of a motor, at its most basic form, is the amount of rotating force the motor develops.
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Torque converters are not used in manual transmission. Because manual transmission uses clutch and gear has to be shift by driver for smooth ride. Whereas in automatic transmission there will be fluid coupling which will ensure gear shifting automatically depending on fluid parameter.
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Choosing the right gear reducer. A gear reducer is a mechanical transmission device that connects a motor to a driven load. It is also known as a gearbox. It allows you to modify the torque and speed between a motor and a load. Reduction gear assemblies are made up of series of gears.
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Torque is a twisting force that speaks to the engine's rotational force and measures how much of that twisting force is available when an engine exerts itself. ... While horsepower is simply measured in horsepower, torque is typically measured in pounds feet (lb.
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Torque inversely propositional to speed: In such types of loads, torque is inversely proportional to speed or load power remains constant.
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Understanding Axle Ratios The term refers to the gears in the truck's differential, which is a mechanical device that links the rear axle to the driveshaft and then the engine. Technically, the number should be expressed as a ratio, such as 3.55:1, meaning the drive shaft turns 3.55 times for each turn of a wheel.
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Torque is the rotational equivalence of linear force. Speed measures the distance covered in unit time. The relation between Torque and speed are inversely proportional to each other. The torque of a rotating object can be mathematically written as the ratio of Power and Angular velocity.
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Torque is the turning effect of a force, calculated as the product of a force (F) and its moment arm (MA), written mathematically as T = F × MA.
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When a machine has two gears of different sizes, the smaller gear turns faster than the larger gear. When the first gear (the driver or input gear) turns, the second gear (the driven or ouput gear) turns in response. The difference between the speeds of the two gears is called the speed ratio or gear ratio.
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Two or more meshing gears, working in a sequence, are called a gear train or a transmission. A gear can mesh with a linear toothed part, called a rack, producing translation instead of rotation. The gears in a transmission are analogous to the wheels in a crossed, belt pulley system.
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Torque is a measure of the force that can cause an object to rotate about an axis. Just as force is what causes an object to accelerate in linear kinematics, torque is what causes an object to acquire angular acceleration.
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The main characteristic of a torque converter is its ability to multiply torque when the output rotational speed is so low that it allows the fluid coming off the curved vanes of the turbine to be deflected off the stator while it is locked against its one-way clutch, thus providing the equivalent of a reduction gear.
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A gear or cog is a rotating machine part having cut teeth or, in the case of a cogwheel, inserted teeth (called cogs), which mesh with another toothed part to transmit torque. ... The teeth on the two meshing gears all have the same shape.