今天详细介绍下INA轴承在修理过程中润滑油的使用。发动机机油宁多勿少是

Today, I will introduce the use of lubricating oil in the repair process of INA bearings in detail. Engine oil is more misleading. Generally, the oil level should be kept slightly below the scale on the dipstick. If the oil level is too high, it will be counterproductive. <br><br><br>The danger of too little engine lubricant is well known. Therefore, some car owners are afraid of lack of fuel and burn tiles, and think that adding more lubricating oil is better than less, therefore, they often do not refuel according to the regulations and make the lubricating oil exceed the standard. In fact, too much lubricating oil has many hazards: <br><br>(1) The crankshaft is agitated when the car is running, which makes the oil foam deteriorate and increases the crankshaft's rotational resistance, so it will not only increase engine fuel consumption, but also reduce engine power. <br><br>(2) Increased combustion of oil from the cylinder wall to the combustion chamber increases the oil consumption. <br><br>(3) Accelerates the formation of carbon deposits in the combustion chamber, making the engine prone to deflagration. <br><br>Therefore, it is not a misunderstanding that engine oil should be more. Generally, the oil level should be kept slightly below the scale on the dipstick. If the oil level is too high, it will be counterproductive. <br><br>In order to prevent the wear of the contact surfaces between moving parts, the lubricating oil must have sufficient viscosity so that it can form an oil film between the moving parts at various operating temperatures. However, the viscosity of the lubricating oil must not be higher than the degree that affects the start of the engine, and requires minimal friction under continuous operating conditions. The use of lubricating oil with too high viscosity will increase the wear of the machine parts, because: <br><br>1. The viscosity of the engine lubricating oil is too large, the flow is slow, the flow is high, and the oil pressure is high, but the amount of lubricating oil is not too much and cannot be added in time Friction surface. <br>2. Due to the high viscosity of the lubricating oil, the friction between the friction surfaces of the machine parts increases. In order to overcome the increased friction, more fuel is consumed, and the output power of the engine is also reduced. <br>3. The viscosity of the lubricating oil is high, the circulation speed of the oil is slow, the cooling and heat dissipation effects are poor, and the engine is easily overheated. <br>4. Due to the slow circulation speed of the lubricating oil, the number of times of passing through the lubricating oil filter is less, and it is difficult to clean the worn metal dust, carbon particles and dust from the friction surface in time.<br><br>Therefore, do not use engine lubricating oil with excessive viscosity, let alone think that the higher the viscosity, the better. Under the condition of ensuring lubrication, according to the temperature range at the time of use, lubricating oil with a small viscosity should be selected as much as possible. However, for engines with more severe wear and larger gaps, lubricating oils with a slightly higher viscosity can be used appropriately.

今天详细介绍下INA轴承在修理过程中润滑油的使用。发动机机油宁多勿少是误区，一般油平面应保持在略低于油尺上刻度为宜，油面过高会适得其反。<br><br><br>发动机润滑油过少的危害是大家所共知的。因此有些车主怕缺油烧瓦，认为多加润滑油总比少加好，因此，常常不按规定加油，使润滑油超过标准。其实润滑油过多有许多危害：<br><br>（1）汽车行驶时曲轴搅动，使机油泡沫变质，增加曲轴转动阻力，因此不仅会增加发动机油耗，而且还会降低发动机功率。<br><br>（2）由于机油从汽缸壁上窜到燃烧室燃烧增多，使机油消耗量增加。<br><br>（3）加速了燃烧室积炭的形成，使发动机易产生爆燃现象。<br><br>因此，发动机机油宁多勿少是误区，一般油平面应保持在略低于油尺上刻度为宜，油面过高会适得其反。<br><br>为了防止运动零件间接触面磨损，润滑油必须有足够的粘度，以便在各种运转温度下，都能在运动零件间形成油膜。但润滑油的粘度不得高于影响发动机启动的程度，并要求在持续运转条件下产生的摩擦最小。使用粘度过大的润滑油会增加机件的磨损，这是因为:<br><br>1、发动机润滑油粘度过大，流动缓慢、上流慢、油压虽高，但润滑油通过量不多，不能及时补充到摩擦表面。<br>2、由于润滑油粘度大，机件摩擦表面间的摩擦力增大，为克服增大的摩擦力，要多消耗燃料，同时也降低了发动机的输出功率。<br>3、润滑油粘度大，油的循环速度也就慢，其冷却与散热效果就差，易使发动机过热。<br>4、由于润滑油循环速度慢，通过润滑油滤清器的次数就少，难以及时将磨损下来的金属末屑、炭粒、尘埃从摩擦表面中清洗出去。<br><br>因此，不要使用粘度过大的发动机润滑油，更不能认为粘度越大越好。在保证润滑的条件下，根据使用时的气温范围，尽可能选用粘度小的润滑油。但对磨损已比较严重、间隙已比较大的发动机，可适当选用粘度稍大的润滑油。

The use of lubricating oil in the repair process of ina bearing is introduced in detail today. It is a mistake to use more engine oil rather than less. Generally, the oil level should be kept slightly lower than the scale on the dipstick. Too high oil level will backfire.<br>The harm of too little engine lubricating oil is well known. Therefore, some car owners are afraid of running out of oil and burning tiles. They think that it is better to add more lubricating oil than less. Therefore, they often do not add oil according to the regulations, so that the lubricating oil exceeds the standard. In fact, too much lubricating oil has many hazards:<br>(1) when the car is running, the crankshaft stirs up, causing the oil foam to deteriorate and increase the rotation resistance of the crankshaft. Therefore, it not only increases the fuel consumption of the engine, but also reduces the power of the engine.<br>(2) As the engine oil from cylinder wall to combustion chamber increases, the consumption of engine oil increases.<br>(3) It accelerates the formation of carbon deposit in the combustion chamber and makes the engine prone to deflagration.<br>Therefore, it is a mistake to use more engine oil rather than less engine oil. Generally, the oil level should be kept slightly lower than the scale on the dipstick. Too high oil level will backfire.<br>In order to prevent the indirect contact surface wear of moving parts, the lubricating oil must have enough viscosity so that the oil film can be formed between moving parts at various operating temperatures. However, the viscosity of the lubricating oil shall not be higher than the degree that affects the starting of the engine, and the friction generated under the continuous operation condition shall be minimum. The use of excessive viscosity lubricating oil will increase the wear of parts, because:<br>1. The viscosity of engine lubricating oil is too large, the flow is slow, the up flow is slow, and the oil pressure is high, but the amount of lubricating oil passing through is not much, so it can not be added to the friction surface in time.<br>2. Because of the high viscosity of the lubricating oil, the friction between the friction surfaces of the parts increases. In order to overcome the increased friction, more fuel should be consumed and the output power of the engine is reduced.<br>3. The viscosity of lubricating oil is large, the circulation speed of oil is slow, the cooling and heat dissipation effect is poor, and the engine is easy to overheat.<br>4. Due to the slow circulation speed of lubricating oil, the number of times of passing through the lubricating oil filter is less, so it is difficult to clean the worn metal scraps, carbon particles and dust from the friction surface in time.<br>Therefore, do not use engine lubricating oil with excessive viscosity, let alone think that the higher the viscosity, the better. Under the condition of ensuring lubrication, select lubricating oil with low viscosity as much as possible according to the temperature range during use. However, for engines with severe wear and large clearance, the lubricating oil with a slightly higher viscosity can be selected appropriately.<br>