In order to make the bearing reach the better ideal life value, what grade of grease to fill and the amount of grease to fill are scientific schemes obtained through countless practical experiments. It is generally believed that the grease consumption life is equivalent to the bearing life. In addition, the design of the sealing cover, the distance from the inner ring, or contact, or non-contact, or labyrinth are well designed. When refueling, the disassembly of the seal cover is bound to affect its effect, and then affect the service life of the bearing.

轴承密封方法有哪些？

What are the sealing methods of bearings?

滚动轴承的密封方法可分为接触式密封及非接触式两类。所谓轴承自带密封就是把轴承自身制作成具有密封功能设备的。如轴承带防尘盖、密封圈等。这种密封占用空间很。所谓轴承外加密封功能设备，就是在设备端盖等内部制作成具有各种功能的密封设备。

The sealing methods of rolling bearings can be divided into contact sealing and non-contact sealing. The so-called bearing with seal is to make the bearing itself into a sealing function equipment. Such as bearing with dust cover, sealing ring, etc. This seal takes up a lot of space. The so-called bearing external sealing function equipment is to make sealing equipment with various functions inside the end cover of the equipment.

1、接触式密封有毡圈密封、密封圈密封等。

1. Contact seal has felt ring seal, seal ring seal, etc.

2、非接触式密封有轴向曲路密封、径向曲路密封、油沟密封、挡圈密封等。

2. Non contact seals include axial curved seal, radial curved seal, oil groove seal, retaining ring seal, etc.

轴承

Bearing

在此寿命以内的轴承，应在其任何轴承圈或滚动体上发生初步疲劳损坏（剥落或缺损）。然而无论在实验室试验或在实际使用中，都可明显地看到，在同样的工作条件下的外观相同轴承，实际寿命大不相同。

For bearings within this life span, initial fatigue damage (spalling or defect) should occur on any bearing ring or rolling element. However, no matter in the laboratory test or in the actual use, it can be clearly seen that under the same working conditions, the appearance of the same bearing, the actual life is very different.

此外还有数种不同定义的轴承“寿命”，其中之一即所谓的“工作寿命”，它表示某一轴承在损坏之前可达到的实际寿命是由磨损、损坏通常并非由疲劳所致，而是由磨损、腐蚀、密封损坏等原因造成。

In addition, there are several different definitions of bearing "life", one of which is the so-called "working life", which means that the actual life of a bearing before damage is caused by wear, damage is usually not caused by fatigue, but by wear, corrosion, seal damage and other reasons.

轴承密封圈，一种轴承密封件，尤其是一种滚珠轴承密封圈，滚珠轴承密封圈是在圆环形的一个端面上向上延伸着两个成圆形的凸起，所述的直径较小的凸起的内径与滚珠轴承的内圈外径相配合，所述的直径较大的凸起与滚珠轴承的滚珠圈外径相配合；所述的密封圈的内孔径不小于滚珠轴承内圈的内孔径。具有防止油脂起火、避免经常加油且结构简单等特点。在轴承上被广泛使用。

The invention relates to a bearing sealing ring, in particular to a ball bearing sealing ring. The ball bearing sealing ring has two round protrusions extending upward on one end face of a ring shape. The inner diameter of the smaller protrusion is matched with the outer diameter of the inner ring of the ball bearing, and the larger protrusion is matched with the outer diameter of the ball ring of the ball bearing The inner diameter of the inner ring is not less than that of the inner ring of the ball bearing. The utility model has the advantages of preventing oil from ignition, avoiding frequent oiling and simple structure. It is widely used in bearings.

一种轴承密封圈，其特征在于：在圆环形的一个端面上向上延伸着两个成圆形的凸起，所述的直径较小的凸起的内径与滚珠轴承的内圈外径相配合，所述的直径较大的凸起与滚珠轴承的滚珠圈外径相配合；所述的密封圈的内孔径不小于滚珠轴承内圈的内孔径。

A bearing sealing ring is characterized in that: two round protrusions are extended upward on one end face of the ring shape, the inner diameter of the smaller protrusion is matched with the outer diameter of the inner ring of the ball bearing, and the larger protrusion is matched with the outer diameter of the ball ring of the ball bearing; the inner diameter of the sealing ring is not less than the inner diameter of the inner ring of the ball bearing.