2022-08-26

Bearing inspection and judgment

In order to judge whether the removed bearing can be reused, it is necessary to focus on checking its dimensional accuracy, rotation accuracy, internal clearance, and mating surface, raceway surface, cage and sealing ring. Because large bearings cannot be rotated by hand, pay attention to checking the appearance of rolling elements, raceway surfaces, cages, rib surfaces, etc. The higher the importance of the bearing, the more careful inspection is required.

2022-08-26

How should bearings be cleaned?

When removing the bearing for inspection, first make a record of the appearance by means of photography, etc. In addition, confirm the amount of remaining lubricant and sample the lubricant, and then clean the bearing. a. The cleaning of the bearing is divided into coarse cleaning and fine cleaning, and a metal mesh frame can be placed at the bottom of the container used.

2022-08-26

What is the purpose of bearing lubrication?

Extending fatigue life The rolling fatigue life of bearings is extended when the rolling contact surface is well lubricated during rotation. Conversely, if the oil viscosity is low and the lubricating oil film thickness is not good, it will be shortened. Friction heat removal, cooling cycle oil supply method, etc., can use oil to discharge heat generated by friction, or heat from outside, and cool it. Prevent the bearing from overheating and prevent the aging of the lubricating oil itself.

2022-08-26

What are the seals of bearings?

The seal of the bearing can be divided into two types: self-contained seal and external seal. The so-called bearing self-sealing is to manufacture the bearing itself into a device with sealing performance. Such as bearing with dust cover, sealing ring and so on. This kind of seal takes up little space, is easy to install and disassemble, and has a relatively low cost.

2022-08-26

What are the aspects of identifying the quality of equipment bearings?

Is the outer packaging clear? In general, the brands produced by regular manufacturers have their own special designers to design the outer packaging, and arrange for the production of factories that have passed the production conditions. Therefore, the packaging of the product is no matter the line The color blocks should be very clear and unambiguous.

2022-08-26

Introduction of spherical roller bearings

Spherical roller bearings have two rows of rollers, which mainly bear radial and one load, and can also bear axial load in any direction. It has high radial load capacity, especially suitable for working under heavy load or vibration load, but cannot bear pure axial load. The outer ring raceway of this type of bearing is spherical, so its self-aligning performance is good, and it can compensate for the coaxiality error.