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.

2022-08-26

Introduction of self-aligning ball bearings

Self-aligning ball bearing: between the inner ring of the two raceways and the outer ring of which the raceway is spherical, the bearing is equipped with drum rollers. The center of curvature of the outer ring raceway surface is consistent with the center of the bearing, so it has the same self-aligning function as the self-aligning ball bearing. When the shaft and housing are deflected, they can be adjusted automatically without increasing the bearing burden. Spherical roller bearings can withstand radial loads and axial loads in two directions. Self-aligning ball bearings have a large radial load capacity and are suitable for heavy loads and shock loads. The inner diameter of the inner ring is a bearing with a tapered bore, which can be directly mounted. Or install it on the cylindrical shaft using an adapter sleeve and a dismantling sleeve.

2022-08-26

Introduction of Needle Roller Bearings

Needle roller bearings are equipped with thin and long rollers (the length of the roller is 3~10 times the diameter, and the diameter is generally not more than 5mm), so the radial structure is compact, and its inner diameter and load capacity are the same as other types of bearings. The smallest diameter, especially suitable for supporting structures with limited radial installation size. Needle roller bearings can choose bearings without inner rings or needle roller and cage assemblies according to different applications. The surface of the hole is directly used as the inner and outer rolling surfaces of the bearing. In order to ensure the same load capacity and running performance as the bearing with ring, the hardness, machining accuracy and surface quality of the surface of the shaft or housing hole raceway should be the same as that of the bearing ring. Needle bearing is a bearing unit composed of radial needle roller bearing and thrust bearing components. It has a compact structure, small volume and high rotation accuracy. It can bear a certain axial load while bearing a high radial load.