The greasy bearing is to make the bearing can or abnormal operation, prevent the raceway and the transfer of the surface of the direct contact, reduce friction and wear within the bearing, prolong the service life of the bearing, enhance the performance of the bearing, but also to prevent foreign bodies into the bearing caused by rust and degeneration.
轴承的11种滑腻办法有(There are 11 ways to smooth the bearing.)：
1.手动滑腻（manual lubrication）
这是最原始的办法，在轴承的滑腻油不足的情况下，用加油器供油。但是这种办法难以保持油量一定，因疏忽忘记加油的危险较大，常日只用于轻载、低速或间歇运动的场合，最好把持的时候，在加油孔上设置防尘盖或球阀，并用毛毡、棉、毛等作过滤装置。
This is the most primitive way. Under the condition that the lubricating oil of the bearing is not enough, use the oiler to supply oil. But this method is difficult to maintain a certain amount of oil, because negligence to forget the greater danger of refueling, often used only in light-duty, low-speed or intermittent movement occasions, it is best to control the time, in the refueling hole set up dust cover or ball valve, and felt, cotton, wool and other filters.
2.滴点滑腻（drops of dots）
常日用于圆周速度小于4——5m/s的轻载和中载轴承，从容器经孔、针、阀等供给约略为定量的滑腻油，最经典的是滴油油杯，滴油量随滑腻油粘度、轴承间隙和供油孔位置不同有显著变革。
Usually used for light and medium load bearings with circumferential velocity less than 4-5m/s, slightly quantitative greasy oil is supplied from the container through the hole, needle, valve, etc. The most classic is the oil drop cup. The amount of oil dropping varies significantly with the viscosity of the greasy oil, bearing clearance and the position of the oil supply hole.
3.油环滑腻（oil ring is smooth）
靠挂在轴上并能旋转的环将油池的滑腻油带到轴承中（仅能用于卧轴的滑腻办法），适用于轴径大于50mm的中速和高速轴承，油环最好是无缝的，轴承宽径比小于2时，可只用一个油环，否则需用两个油环。
The greasy oil in the oil pool is carried into the bearing by a ring which can be hung on the shaft and rotated (only for the slippery method of the horizontal shaft). It is suitable for medium-speed and high-speed bearings with shaft diameters greater than 50 mm. The oil ring should be seamless. When the width-diameter ratio of the bearing is less than 2, only one oil ring can be used, otherwise two oil rings are needed.
4.油绳滑腻（oil cord is smooth）
依靠油绳的毛细管和虹吸浸染将油杯中的滑腻油引到轴承中，紧张用于圆周速度小于4——5m/s的轻载和中载轴承，其余油绳在全体过程中能起到过滤的浸染。
The greasy oil in the oil cup is introduced into the bearing by the capillary and siphon immersion of the oil rope, which is used for light and medium load bearings with circumferential velocity less than 4-5m/s. The rest of the oil rope can act as filter immersion in the whole process.
5.油垫滑腻（oil pad is smooth）
利用油垫的毛细管浸染，将油池中的滑腻油涂到轴径表面，此办法能使摩擦表面经常保持干净，但尘土也会窒息毛细孔组成供油不足。油垫滑腻的供油量常日只需油滑腻的1/20。
The greasy oil in the oil pool is coated on the surface of the shaft diameter by capillary immersion of the oil pad. This method can keep the friction surface clean, but the dust can also asphyxiate the capillary pores to form an insufficient oil supply. The greasy oil supply of the oil cushion often needs only 1/20 of oil and greasy.
6.油浴滑腻（oil bath is smooth）
这种滑腻办法是将轴承的一部分浸入滑腻油中，常用于竖轴的推力轴承，而不宜用于卧轴的径向轴承。
This greasy method is to immerse a part of the bearing in greasy oil, often used in the thrust bearing of the vertical shaft, but not suitable for the radial bearing of the horizontal shaft.
7.飞溅滑腻（splashing and smooth）
依靠油箱中旋转件的拍击而飞溅起来的滑腻油供给轴承，适用于较高速度的轴承。
The greasy oil splashed by the beating of the rotating parts in the oil tank is used for the bearings with higher speed.
8.喷雾滑腻（spray and smooth）
将滑腻油雾化今后喷在摩擦表面的滑腻办法，适用于高速轴承。
The greasy oil atomization method will be applied to high speed bearings in the future.
9.压力供油滑腻（pressure oil lubrication）
靠滑腻泵的压力向轴承供油，将从轴承流出的滑腻油回收到油池以便循环利用，是供油量至少且最稳定的滑腻办法，适用于高速、重载、紧张的滑动轴承。
The greasy oil is supplied to the bearing by the pressure of the greasy pump, and the greasy oil from the bearing is recovered to the oil pool for recycling. It is the greasy method with the least oil supply and the most stable. It is suitable for high speed, heavy load and tight sliding bearings.
10.循环油滑腻（circulating oil is smooth）
用油泵将过滤的油输送到轴承部件中，颠末过程轴承后的滑腻油再过滤冷却后利用。由于循环油可带走一定的热量，使轴承降温，故此法适用于转速较高的轴承部件。
The filtered oil is transported to the bearing parts by the oil pump, and the greasy oil after the bearing is filtered and cooled before being used. Because the circulating oil can take away a certain amount of heat, so that the bearing cooling, so this method is suitable for high speed bearing parts.
11.喷射滑腻（jet smooth）
用油泵将高压油经喷嘴射到轴承中，射入轴承中的油经轴承另一端流入油槽。当轴承高速旋转时，迁移转变体和保持架也以相当高的旋转速度使周围气氛组成气流，用异常平凡滑腻办法很难将滑腻油送到轴承中，这时必须用高压喷射的办法将滑腻油喷至轴承中，喷嘴的位置应放在内圈和保持架中央之间。
The high pressure oil is injected into the bearing by the oil pump through the nozzle, and the oil injected into the bearing flows into the oil groove through the other end of the bearing. When the bearing rotates at high speed, the transfer transformer and cage also make the ambient atmosphere air flow with high rotating speed. It is difficult to deliver the greasy oil to the bearing by unusually ordinary and slippery method. In this case, the greasy oil must be injected into the bearing by means of high pressure injection, and the position of the nozzle should be placed between the inner ring and the center of the cage.
