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  2. Engine balance - Wikipedia

    en.wikipedia.org/wiki/Engine_balance

    Unbalanced masses along the axis of rotation of a rotating assembly causing a rocking couple, such as if the crankshaft of a boxer-twin engine did not include counterweights, the mass of the crank throws located 180° apart would cause a couple along the axis of the crankshaft. [2] Lateral motion in counter-moving pairs of assemblies, such as a ...

  3. Rotating unbalance - Wikipedia

    en.wikipedia.org/wiki/Rotating_unbalance

    Rotating unbalance is the uneven distribution of mass around an axis of rotation. A rotating mass, or rotor, is said to be out of balance when its center of mass (inertia axis) is out of alignment with the center of rotation (geometric axis). Unbalance causes a moment which gives the rotor a wobbling movement characteristic of vibration of ...

  4. The Toro Company - Wikipedia

    en.wikipedia.org/wiki/The_Toro_Company

    The Toro Company was established as the "Toro Motor Company" in 1914 to build tractor engines for The Bull Tractor Company. [4] It built steam engines to support war efforts during World War I, and changed its name to Toro Manufacturing Company in 1920 when it began to refocus on manufacturing farm equipment. [5]

  5. Counter-rotating propellers - Wikipedia

    en.wikipedia.org/wiki/Counter-rotating_propellers

    The counter-rotating powerplants of the German World War II Junkers Ju 288 prototype series (as the Bomber B contract winning design), the Gotha Go 244 light transport, Henschel Hs 129 ground attack aircraft, Heinkel He 177A heavy bomber and Messerschmitt Me 323 transport used the same rotational "sense" as the production P-38 did – this has ...

  6. Key (engineering) - Wikipedia

    en.wikipedia.org/wiki/Key_(engineering)

    The key prevents relative rotation between the two parts and may enable torque transmission. For a key to function, the shaft and rotating machine element must have a keyway and a keyseat, which is a slot and pocket in which the key fits. The whole system is called a keyed joint. [1] [2] A keyed joint may allow relative axial movement between ...

  7. Slip ring - Wikipedia

    en.wikipedia.org/wiki/Slip_ring

    A slip ring (in electrical engineering terms) is a method of making an electrical connection through a rotating assembly. Formally, it is an electric transmission device that allows energy flow between two electrical rotating parts, such as in a motor. Slip rings on a hydroelectric generator; A - stationary spring-loaded graphite brushes,

  8. Balance shaft - Wikipedia

    en.wikipedia.org/wiki/Balance_shaft

    Balance shaft in Ford Taunus V4 engine.. Balance shafts are used in piston engines to reduce vibration by cancelling out unbalanced dynamic forces. The counter balance shafts have eccentric weights and rotate in the opposite direction to each other, which generates a net vertical force.

  9. Hirth joint - Wikipedia

    en.wikipedia.org/wiki/Hirth_joint

    The centre of a shaft is not toothed, as this would add little torque capacity to the coupling and the increasingly narrow teeth would become impractical to cut. For instance, a shaft of 60 mm diameter can be toothed in a 12 mm wide ring only (inner diameter is 36 mm) without jeopardizing the load-bearing capacity of the shaft.

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