汽車分動箱用齒輪油。
分動箱作為四驅汽車不可缺少的齒輪傳動系，需要定期更換齒輪油進行保養。齒輪油對齒輪的潤滑、抗磨、冷卻、散熱、防腐防銹和降低齒面衝擊與雜訊等方面都有著很好的作用。分動箱的作用是將發動機的動力進行分配，可以將動力分配到後軸，或者同時分配到前/後軸。
齒輪油的作用有:
1.潤滑傳動系統，減少齒輪及其它運動部件的磨損，保證傳動系統正常運動，延長使用壽命2.減少齒倫傳動僕的摩擦和傳動損失，提高機械效率。3.冷卻傳動機件。齒輪傳動，由於齒面接觸摩擦會產生大量熱量，如不及時散發掉，就會在齒面局部造成高溫，嚴重的還會造成燒蝕和粘接。齒輪油在迴圈潤滑過程中不斷將熱量帶走，通過空氣與傳動機構殼體散發出去，保證傳動機件正常工作。
4.防止腐蝕與銹蝕。
5.降低齒面衝擊與傳動雜訊。
6.齒輪油有洗滌作用，能不斷將結在齒輪表面的污染物和固體顆粒沖洗乾淨
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Gear oil is used in the transfer case of a car.
As an indispensable gear train in a four-wheel drive vehicle, the gearbox needs to be regularly maintained by changing the gear oil. Gear oil is essential for lubrication, anti-wear, cooling, heat dissipation, corrosion and rust prevention, as well as for reducing impact and noise on the gear surfaces. The distributor box is used to distribute the power of the engine, either to the rear axle or to both the front and rear axles.
The purpose of the gear oil is to.
1. Lubricating the transmission system, reducing the wear of the gears and other moving parts, ensuring the normal movement of the transmission system and prolonging its service life.
2. Reducing friction and transmission losses in the gears and improving mechanical efficiency.
3. Gear transmission, due to tooth contact friction will produce a large amount of heat, such as the timely dissipation off, will cause high local temperature in the tooth surface, serious will also cause erosion and bonding. In the process of lubricating the gear oil, the heat is continuously carried away and dissipated through the air and the transmission body to ensure the normal operation of the transmission mechanism.
4. Prevents corrosion and rusting.
5. Reduces the impact of the tooth surface and transmission noise.
6. The gear oil has a scrubbing effect and can continuously wash away pollutants and solid particles that are caked on the surface of the gears.
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