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2. Engine balance - Wikipedia

   en.wikipedia.org/wiki/Engine_balance

   Types of rotating plane imbalance are: 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]

3. 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 ...

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. 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 ...

6. BorgWarner T-5 transmission - Wikipedia

   en.wikipedia.org/wiki/BorgWarner_T-5_transmission

   If this is not visually accessible, the color of the synchronizer rings can be used to distinguish the two types, with the oil fill plug removed. [2] WC transmissions should be filled with automatic transmission fluid , while STD models use 50W gear oil .

7. 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 ...

8. Eccentric (mechanism) - Wikipedia

   en.wikipedia.org/wiki/Eccentric_(mechanism)

   Eccentric bottom bracket on a Burley tandem bicycle held in place with two set screws. The term is also used to refer to the device often used on tandem bicycles with timing chains, single-speed bicycles with a rear disc brake or an internal-geared hub, or any bicycle with vertical dropouts and no derailleur, to allow slight repositioning, fore and aft, of a bottom bracket to properly tension ...

9. 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.