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A machine key, also known as a parallel key, machine key, slip key, shaft key, etc., is a machine used to effectively transmit rotational force from the shaft to the gears by fastening the shaft and gears to prevent them from slipping. element. A groove is machined into the boss (mechanical element that connects to the shaft) to fit the key into, and for heavy loads (for power transmission) it is used as a "sinking key" with a key groove to fit the key into the shaft, and for light loads it is Used as a "flat key" or "blank key" that does not have a keyway on the shaft. Normally, a highly versatile parallel key is used as a "sinking key," but a slope key is used when sufficient torque transmission cannot be achieved. Half-moon keys are mainly used for tapered shafts due to their ease of machining. The width and height size of the key corresponding to the thickness of the shaft, the corresponding key groove, etc. are also specified, so once the shaft is determined, the corresponding key size is also determined. The size of keys is standardized by JIS, but dimensions and tolerances were drastically revised when the JIS standard was revised in 1972, so there is a new JIS and an old JIS.
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Machine keyProduct
Pin/retaining ringHandling Company
Bossard Co., Ltd.Categories
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